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UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? Day 1 Work
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†After Attendance (†EQ Sheet; Concept Map)
Place HW on my desk †Pickup a new Essential Question Sheet and a Conservation of Energy Concept Map Pickup and sign out your computer Log into Select the Warm-Up link Complete today’s warm-up and submit it Logout and return the computer to the cart 2
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Feed Back for Google Docs
Was anything confusing on google docs? Noteworthy Student Responses
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Review of Materials Causes of Force Test
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Chapter 6 Work and Energy
UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? Chapter 6 Work and Energy
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Units of Chapter 6 Work Done by a Constant Force
UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? Units of Chapter 6 Work Done by a Constant Force Work Done by a Varying Force Kinetic Energy and the Work-Energy Principle Potential Energy Conservative and Nonconservative Forces Mechanical Energy and Its Conservation Problem Solving Using Conservation of Mechanical Energy
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UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? Units of Chapter 6 Other Forms of Energy; Energy Transformations and the Law of Conservation of Energy Energy Conservation with Dissipative Forces: Solving Problems Power
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Equations to Know: Conservation of Energy
UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? Equations to Know: Conservation of Energy
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Conservation of Energy: Work
EQ(s): How do we calculate work in terms of kinetic energy? Start: I tell my wife, “It is called work for a reason, that is why they pay you.” So, what is work afterall? 9
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6-1 Work Done by a Constant Force
How do we calculate work in terms of kinetic energy? 6-1 Work Done by a Constant Force The work done by a constant force is defined as the distance moved multiplied by the component of the force in the direction of displacement: (6-1)
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6-1 Work Done by a Constant Force
How do we calculate work in terms of kinetic energy? 6-1 Work Done by a Constant Force In the SI system, the units of work are joules: As long as this person does not lift or lower the bag of groceries, he is doing no work on it. The force he exerts has no component in the direction of motion.
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6-1 Work Done by a Constant Force
How do we calculate work in terms of kinetic energy? 6-1 Work Done by a Constant Force Solving work problems: Draw a free-body diagram. Choose a coordinate system. Apply Newton’s laws to determine any unknown forces. Find the work done by a specific force. To find the net work, either find the net force and then find the work it does, or find the work done by each force and add.
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6-1 Work Done by a Constant Force
How do we calculate work in terms of kinetic energy? 6-1 Work Done by a Constant Force Work done by forces that oppose the direction of motion, such as friction, will be negative, because cos 180° = -1. Centripetal forces do no work, as they are always perpendicular to the direction of motion.
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6-2 Work Done by a Varying Force
How do we calculate work in terms of kinetic energy? 6-2 Work Done by a Varying Force For a force that varies, the work can be approximated by dividing the distance up into small pieces, finding the work done during each, and adding them up. As the pieces become very narrow, the work done is the area under the force vs. distance curve.
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Pasco Work and Energy LAB
How do we calculate work in terms of kinetic energy? Pasco Work and Energy LAB Work in groups of no more than 4 people. Return all supplies to the counter/cart.
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How do we calculate work in terms of kinetic energy?
WebAssign/Lab Time Work on WebAssign Problems or the Pasco Work and Energy Lab Final Copy Criteria State the problem (Ex. Find displacement) Draw a picture/diagram Provide a list or table of all given data (Ex. t = 2 s) Solve the problem symbolically (Ex. v=x/t x = vt) Plug in numbers and units to obtain answer. (Ex. x = (5 m/s)(2 s)= 10 m) Notes about WebAssign: Positive vs. negative answers (Try a negative sign) Look at the final unit (hours or minutes or seconds) 16
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How do we calculate work in terms of kinetic energy?
Summary Answer the Essential Question. Ticket out the Door: What is the formula for work? How much work have you done if you strain to move a couch but never move it? How much work have you done if you lift the couch 1 m up with a force of 500 N? HW: Pasco Work and Energy Lab (Questions and Conclusions) WebAssign Problems 17
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Kinetic Energy Work-Energy Principle
UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? Day 2 Kinetic Energy Work-Energy Principle
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After Attendance Place HW on my desk Pickup and sign out your computer
Log into Select the Warm-Up link Complete today’s warm-up and submit it Logout and return the computer to the cart 19
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Feed Back for Google Docs
Was anything confusing on google docs? Noteworthy Student Responses
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Review of Materials WebAssign Questions
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Conservation of Energy: Kinetic Energy
EQ(s): How do we calculate work in terms of kinetic energy? How can the velocity of an object be quantified in terms of its kinetic energy? INSERT Picture Start: Solve the following equation for ax: What have you calculated if you multiply ax by its mass? 22
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6-3 Kinetic Energy and the Work-Energy Principle
How do we calculate work in terms of kinetic energy? How can the velocity of an object be quantified in terms of its kinetic energy? 6-3 Kinetic Energy and the Work-Energy Principle Energy was traditionally defined as the ability to do work. We now know that not all forces are able to do work; however, we are dealing in these chapters with mechanical energy, which does follow this definition.
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6-3 Kinetic Energy and the Work-Energy Principle
How do we calculate work in terms of kinetic energy? How can the velocity of an object be quantified in terms of its kinetic energy? 6-3 Kinetic Energy and the Work-Energy Principle If we write the acceleration in terms of the velocity and the distance, we find that the work done here is We define the kinetic energy: (6-2) (6-3)
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6-3 Kinetic Energy and the Work-Energy Principle
How do we calculate work in terms of kinetic energy? How can the velocity of an object be quantified in terms of its kinetic energy? 6-3 Kinetic Energy and the Work-Energy Principle If the KE of an object is doubled, by what factor has its speed increased?
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6-3 Kinetic Energy and the Work-Energy Principle
How do we calculate work in terms of kinetic energy? How can the velocity of an object be quantified in terms of its kinetic energy? 6-3 Kinetic Energy and the Work-Energy Principle If its speed is doubled, by what factor does its KE increase?
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6-3 Kinetic Energy and the Work-Energy Principle
How do we calculate work in terms of kinetic energy? How can the velocity of an object be quantified in terms of its kinetic energy? 6-3 Kinetic Energy and the Work-Energy Principle This means that the work done is equal to the change in the kinetic energy: (The Work-Energy Principle) (6-4) If the net work is positive, the kinetic energy increases. If the net work is negative, the kinetic energy decreases.
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6-3 Kinetic Energy and the Work-Energy Principle
How do we calculate work in terms of kinetic energy? How can the velocity of an object be quantified in terms of its kinetic energy? 6-3 Kinetic Energy and the Work-Energy Principle Because work and kinetic energy can be equated, they must have the same units: kinetic energy is measured in joules.
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Pasco Work and Energy LAB
How do we calculate work in terms of kinetic energy? How can the velocity of an object be quantified in terms of its kinetic energy? Pasco Work and Energy LAB Work in groups of no more than 4 people. Return all supplies to the counter/cart.
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How do we calculate work in terms of kinetic energy?
How can the velocity of an object be quantified in terms of its kinetic energy? WebAssign/Lab Time Work on WebAssign Problems or the Pasco Work and Energy Lab Final Copy Criteria State the problem (Ex. Find displacement) Draw a picture/diagram Provide a list or table of all given data (Ex. t = 2 s) Solve the problem symbolically (Ex. v=x/t x = vt) Plug in numbers and units to obtain answer. (Ex. x = (5 m/s)(2 s)= 10 m) Notes about WebAssign: Positive vs. negative answers (Try a negative sign) Look at the final unit (hours or minutes or seconds) 30
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How do we calculate work in terms of kinetic energy?
How can the velocity of an object be quantified in terms of its kinetic energy? Summary Answer the Essential Questions. Ticket out the Door: What is the formula for kinetic energy? What is the formula for the work-energy principle? What happens to the velocity of an object if the net work is negative? HW: Pasco Work and Energy Lab (Questions and Conclusions) WebAssign Problems 31
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UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? Day 3 Potential Energy
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After Attendance Place HW on my desk Pickup and sign out your computer
Log into Select the Warm-Up link Complete today’s warm-up and submit it Logout and return the computer to the cart 33
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Feed Back for Google Docs
Was anything confusing on google docs? Noteworthy Student Responses
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Review of Materials WebAssign Questions
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Conservation of Energy: Potential Energy
EQ(s): How can the position of an object be quantified in terms of its potential energy? Start: Solve the following equation for the y-axis: 36
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How can the position of an object be quantified in terms of its potential energy?
START Derivation If y > y0, then gravity does negative work (aka. The object moves in the opposite direction of gravity and energy is “stored” in the object by exerting an external force). If y < y0, then gravity does positive work (aka. The object moves in the same direction as gravity).
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How can the position of an object be quantified in terms of its potential energy?
An object can have potential energy by virtue of its surroundings. Familiar examples of potential energy: A wound-up spring A stretched elastic band An object at some height above the ground and Donuts!!!
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How can the position of an object be quantified in terms of its potential energy?
In raising a mass m to a height h, the work done by an external force is We therefore define the gravitational potential energy: (6-5a) or (6-6) Does this go against our START Activity where ? Note that
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How can the position of an object be quantified in terms of its potential energy?
This potential energy can become kinetic energy if the object is dropped. Potential energy is a property of a system as a whole, not just of the object (because it depends on external forces). If , where do we measure y from? It turns out not to matter, as long as we are consistent about where we choose y = 0. Only changes in potential energy can be measured.
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How can the position of an object be quantified in terms of its potential energy?
Potential energy can also be stored in a spring when it is compressed; the figure below shows potential energy yielding kinetic energy.
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How can the position of an object be quantified in terms of its potential energy?
The force required to compress or stretch a spring is: where k is called the spring constant, and needs to be measured for each spring. (6-8) This equation is known as Hooke’s Law Steve Vai: “Crossroads”
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Hooke’s Law INSERT VIDEO CLIP
How does the transformation of energy affect the total energy of a closed system? Hooke’s Law This is not to be confused with: Hook-meets-Peter-Banning-Attorney-At-Law INSERT VIDEO CLIP Youtube address
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or with: T. J.-Hook-er-Enfor-s-er-of-the-Law
How does the transformation of energy affect the total energy of a closed system? Hooke’s Law or with: T. J.-Hook-er-Enfor-s-er-of-the-Law
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How can the position of an object be quantified in terms of its potential energy?
The force increases as the spring is stretched or compressed further. We find that the potential energy of the compressed or stretched spring, measured from its equilibrium position, can be written: (6-9)
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Story Time with Mr. Seuss
How does the transformation of energy affect the total energy of a closed system? Story Time with Mr. Seuss What are two examples of potential energy in this story?
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Pasco Hooke’s Law LAB Work in groups of no more than 4 people.
How can the position of an object be quantified in terms of its potential energy? Pasco Hooke’s Law LAB Work in groups of no more than 4 people. Return all supplies to the counter/cart.
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How can the position of an object be quantified in terms of its potential energy?
WebAssign/Lab Time Work on WebAssign Problems , the Pasco Work and Energy Lab, or the Pasco Hooke’s Law Lab Final Copy Criteria State the problem (Ex. Find displacement) Draw a picture/diagram Provide a list or table of all given data (Ex. t = 2 s) Solve the problem symbolically (Ex. v=x/t x = vt) Plug in numbers and units to obtain answer. (Ex. x = (5 m/s)(2 s)= 10 m) Notes about WebAssign: Positive vs. negative answers (Try a negative sign) Look at the final unit (hours or minutes or seconds) 48
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Summary Answer the Essential Questions. Ticket out the Door: HW:
How can the position of an object be quantified in terms of its potential energy? Summary Answer the Essential Questions. Ticket out the Door: What is the equation for gravitational potential energy? What is the equation for elastic potential energy? Why is the equation for Hooke’s Law negative? HW: Pasco Hooke’s Law Lab (Questions and Conclusions) WebAssign Problems 49
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UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? Day 4 Conservative Forces and Nonconservative Forces; Conservation of Mechanical Energy
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After Attendance Place HW on my desk Pickup and sign out your computer
Log into Select the Warm-Up link Complete today’s warm-up and submit it Logout and return the computer to the cart 51
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Feed Back for Google Docs
Was anything confusing on google docs? Noteworthy Student Responses
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Review of Materials WebAssign Questions
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COE: Conservation of Mechanical Energy
EQ(s): How does the transformation of energy affect the total energy of a closed system? Start: Solve the following equation for gy, multiply both sides by mass, m (Do not cancel out m), and then set the final conditions equal to the initial conditions: 54
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How does the transformation of energy affect the total energy of a closed system?
START Derivation
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6-5 Conservative and Nonconservative Forces
How does the transformation of energy affect the total energy of a closed system? 6-5 Conservative and Nonconservative Forces If friction is present, the work done depends not only on the starting and ending points, but also on the path taken. Friction is called a nonconservative force.
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6-5 Conservative and Nonconservative Forces
How does the transformation of energy affect the total energy of a closed system? 6-5 Conservative and Nonconservative Forces Potential energy can only be defined for conservative forces.
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6-5 Conservative and Nonconservative Forces
How does the transformation of energy affect the total energy of a closed system? 6-5 Conservative and Nonconservative Forces Therefore, we distinguish between the work done by conservative forces and the work done by nonconservative forces. We find that the work done by nonconservative forces is equal to the total change in kinetic and potential energies: (6-10)
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6-6 Mechanical Energy and Its Conservation
How does the transformation of energy affect the total energy of a closed system? 6-6 Mechanical Energy and Its Conservation If there are no nonconservative forces, the sum of the changes in the kinetic energy and in the potential energy is zero – the kinetic and potential energy changes are equal but opposite in sign. This allows us to define the total mechanical energy: And its conservation: (6-12b)
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6-7 Problem Solving Using Conservation of Mechanical Energy
How does the transformation of energy affect the total energy of a closed system? 6-7 Problem Solving Using Conservation of Mechanical Energy In the image on the left, the total mechanical energy is: The energy buckets (right) show how the energy moves from all potential to all kinetic.
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6-7 Problem Solving Using Conservation of Mechanical Energy
How does the transformation of energy affect the total energy of a closed system? 6-7 Problem Solving Using Conservation of Mechanical Energy (Example 1) Determine the total mechanical energy at the top of the building, E0, and at the top of his jump, E1: 1
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6-7 Problem Solving Using Conservation of Mechanical Energy
How does the transformation of energy affect the total energy of a closed system? 6-7 Problem Solving Using Conservation of Mechanical Energy (Example 2) Determine the total mechanical energy at the top of his jump, E1, and as he just touches the trampoline, E2: 1 2
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6-7 Problem Solving Using Conservation of Mechanical Energy
How does the transformation of energy affect the total energy of a closed system? 6-7 Problem Solving Using Conservation of Mechanical Energy (Example 3) Determine the total mechanical energy as he just touches the trampoline, E2, and as fully compresses the trampoline, E3: 2 3
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6-7 Problem Solving Using Conservation of Mechanical Energy
How does the transformation of energy affect the total energy of a closed system? 6-7 Problem Solving Using Conservation of Mechanical Energy (Example 4) If there is no friction, the speed of a roller coaster will depend only on its height compared to its starting height. 1
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6-7 Problem Solving Using Conservation of Mechanical Energy
How does the transformation of energy affect the total energy of a closed system? 6-7 Problem Solving Using Conservation of Mechanical Energy (Example 5): Using conservation of mechanical energy for an elastic force at the start of the pole vault, E0, and at the top of the pole vault, E1: 1
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Pasco Hooke’s Law LAB Work in groups of no more than 4 people.
How does the transformation of energy affect the total energy of a closed system? Pasco Hooke’s Law LAB Work in groups of no more than 4 people. Return all supplies to the counter/cart.
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How does the transformation of energy affect the total energy of a closed system?
WebAssign/Lab Time Work on WebAssign Problems , the Pasco Work and Energy Lab, or the Pasco Hooke’s Law Lab Final Copy Criteria State the problem (Ex. Find displacement) Draw a picture/diagram Provide a list or table of all given data (Ex. t = 2 s) Solve the problem symbolically (Ex. v=x/t x = vt) Plug in numbers and units to obtain answer. (Ex. x = (5 m/s)(2 s)= 10 m) Notes about WebAssign: Positive vs. negative answers (Try a negative sign) Look at the final unit (hours or minutes or seconds) 67
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Summary Answer the Essential Questions. Ticket out the Door: HW:
How does the transformation of energy affect the total energy of a closed system? Summary Answer the Essential Questions. Ticket out the Door: A block of mass m slides without friction along the looped track. If the block is to remain on the track, even at the top of circle (whose radius is r), from what minimum height h must it be released? HW: Pasco Hooke’s Law Lab (Questions and Conclusions) WebAssign Problems 68
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Conservation of Energy
UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? Day 5 Conservation of Energy
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After Attendance Place HW on my desk Pickup and sign out your computer
Log into Select the Warm-Up link Complete today’s warm-up and submit it Logout and return the computer to the cart 70
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Feed Back for Google Docs
Was anything confusing on google docs? Noteworthy Student Responses
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Review of Materials Yesterday’s TOTD
A “car” of mass m rolls without friction along the looped track. If the car is to remain on the track, even at the top of circle (whose radius is r), from what minimum height h must it be released? A block of mass m slides without friction along the looped track. If the block is to remain on the track, even at the top of circle (whose radius is r), from what minimum height h must it be released? v1 1 y0 FG r
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COE: Conservation of Energy
How does the transformation of energy affect the total energy of a closed system? COE: Conservation of Energy EQ(s): How does the transformation of energy affect the total energy of a closed system? Start: A bowling ball is hung from the ceiling by a steel wire. The instructor pulls the ball back and stands against the wall with the ball against his nose. To avoid injury the instructor is supposed to release the ball without pushing it. Why? 74
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How does the transformation of energy affect the total energy of a closed system?
6-8 Other Forms of Energy; Energy Transformations and the Conservation of Energy Some other forms of energy: Electric energy, nuclear energy, thermal energy, chemical energy. Work is done when energy is transferred from one object to another. Accounting for all forms of energy, we find that the total energy neither increases nor decreases. Energy as a whole is conserved. In other words, the Law of Conservation of Energy states that energy is neither created nor destroyed, but is transferred from one object to another.
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6-9 Energy Conservation with Dissipative Processes; Solving Problems
How does the transformation of energy affect the total energy of a closed system? 6-9 Energy Conservation with Dissipative Processes; Solving Problems If there is a nonconservative force such as friction, where do the kinetic and potential energies go? They become heat; the actual temperature rise of the materials involved can be calculated. Please enter The Collision Balls Recall that
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6-9 Energy Conservation with Dissipative Processes; Solving Problems
How does the transformation of energy affect the total energy of a closed system? 6-9 Energy Conservation with Dissipative Processes; Solving Problems Problem Solving: Draw a picture. Determine the system for which energy will be conserved. Figure out what you are looking for, and decide on the initial and final positions. Choose a logical reference frame. Apply conservation of energy. Solve.
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Law of Conservation of Energy
How does the transformation of energy affect the total energy of a closed system? Law of Conservation of Energy Will the bowling ball hit his chin upon its return? Explain. Where did the energy go?
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Law of Conservation of Energy
How does the transformation of energy affect the total energy of a closed system? Law of Conservation of Energy Will the bowling ball hit his chin upon its return? Explain. Where did the energy go?
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Who puts their trust in Laws of Physics?
How does the transformation of energy affect the total energy of a closed system? The Pendulum of Pain Who puts their trust in Laws of Physics?
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Who puts their trust in Laws of Physics?
How does the transformation of energy affect the total energy of a closed system? The Pendulum of Pain Who puts their trust in Laws of Physics?
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Pasco Exp. 8: Projectile Velocity LAB
How does the transformation of energy affect the total energy of a closed system? Pasco Exp. 8: Projectile Velocity LAB Work in groups of no more than 4 people. Return all supplies to the counter/cart. INSERT LAB PICTURE
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How does the transformation of energy affect the total energy of a closed system?
WebAssign/Lab Time Work on WebAssign Problems , the Pasco Work and Energy Lab, Pasco Hooke’s Law Lab, or the Pasco Experiment 8: Projectile Velocity Lab Final Copy Criteria State the problem (Ex. Find displacement) Draw a picture/diagram Provide a list or table of all given data (Ex. t = 2 s) Solve the problem symbolically (Ex. v=x/t x = vt) Plug in numbers and units to obtain answer. (Ex. x = (5 m/s)(2 s)= 10 m) Notes about WebAssign: Positive vs. negative answers (Try a negative sign) Look at the final unit (hours or minutes or seconds) 83
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Summary INSERT PICTURE Answer the Essential Question.
How does the transformation of energy affect the total energy of a closed system? Summary Answer the Essential Question. Ticket out the Door: You drop a ball from a height of 2.0 m, and it bounces back to a height of 1.45 m: What fraction of its initial energy is lost during the bounce? What is the ball’s speed just as it leaves the ground after the bounce? Where did the energy go? HW: Experiment 8: Projectile Velocity Lab (Questions and Conclusions) WebAssign Problems INSERT PICTURE 84
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UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? Day 6 Power
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After Attendance Place HW on my desk Pickup and sign out your computer
Log into Select the Warm-Up link Complete today’s warm-up and submit it Logout and return the computer to the cart 86
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Feed Back for Google Docs
Was anything confusing on google docs? Noteworthy Student Responses
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Review of Materials WebAssign Questions
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UNIT Title: Section Title
EQ(s):? INSERT Picture Start: ? 89
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EQ? TITLE INSERT NOTES HERE
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6-10 Power Power is the rate at which work is done –
(6-17) In the SI system, the units of power are watts: The difference between walking and running up these stairs is power – the change in gravitational potential energy is the same.
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6-10 Power Power is also needed for acceleration and for moving against the force of gravity. The average power can be written in terms of the force and the average velocity: (6-17)
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TITLE INSERT VIDEO CLIP (Thought Question)?
How does the transformation of energy affect the total energy of a closed system? TITLE (Thought Question)? INSERT VIDEO CLIP Youtube address
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LAB TITLE LAB Work in groups of no more than 4 people.
EQ? LAB TITLE LAB Work in groups of no more than 4 people. Return all supplies to the counter/cart. INSERT LAB PICTURE
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LAB TITLE REPORT INSERT LAB PICTURE
EQ? LAB TITLE REPORT One Report for each group of no more than 4 people. Refer to the Laboratory Report Expectations Handout. INSERT LAB PICTURE
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EQ: ? WebAssign/Lab Time Work on WebAssign Problems ?.?? - ?.?? (*Except ?.??), the Lab Title Lab Report, or the Lab Title Lab Final Copy Criteria State the problem (Ex. Find displacement) Draw a picture/diagram Provide a list or table of all given data (Ex. t = 2 s) Solve the problem symbolically (Ex. v=x/t x = vt) Plug in numbers and units to obtain answer. (Ex. x = (5 m/s)(2 s)= 10 m) Notes about WebAssign: Positive vs. negative answers (Try a negative sign) Look at the final unit (hours or minutes or seconds) 96
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Summary INSERT PICTURE Answer the Essential Questions.
EQ? Summary Answer the Essential Questions. Ticket out the Door: HW: Lab Title REPORT Lab Title Lab (Questions and Conclusions) WebAssign Problems ?.? - ?.?? (*Except ?.??) INSERT PICTURE 97
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UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? Day 7 Power
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After Attendance Place HW on my desk Pickup and sign out your computer
Log into Select the Warm-Up link Complete today’s warm-up and submit it Logout and return the computer to the cart 99
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Feed Back for Google Docs
Was anything confusing on google docs? Noteworthy Student Responses
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Review of Materials WebAssign Questions
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UNIT Title: Section Title
EQ(s):? INSERT Picture Start: ? 102
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EQ? TITLE INSERT NOTES HERE
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TITLE INSERT VIDEO CLIP (Thought Question)?
How does the transformation of energy affect the total energy of a closed system? TITLE (Thought Question)? INSERT VIDEO CLIP Youtube address
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LAB TITLE LAB Work in groups of no more than 4 people.
EQ? LAB TITLE LAB Work in groups of no more than 4 people. Return all supplies to the counter/cart. INSERT LAB PICTURE
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LAB TITLE REPORT INSERT LAB PICTURE
EQ? LAB TITLE REPORT One Report for each group of no more than 4 people. Refer to the Laboratory Report Expectations Handout. INSERT LAB PICTURE
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EQ: ? WebAssign/Lab Time Work on WebAssign Problems ?.?? - ?.?? (*Except ?.??), the Lab Title Lab Report, or the Lab Title Lab Final Copy Criteria State the problem (Ex. Find displacement) Draw a picture/diagram Provide a list or table of all given data (Ex. t = 2 s) Solve the problem symbolically (Ex. v=x/t x = vt) Plug in numbers and units to obtain answer. (Ex. x = (5 m/s)(2 s)= 10 m) Notes about WebAssign: Positive vs. negative answers (Try a negative sign) Look at the final unit (hours or minutes or seconds) 107
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Summary INSERT PICTURE Answer the Essential Questions.
EQ? Summary Answer the Essential Questions. Ticket out the Door: HW: Lab Title REPORT Lab Title Lab (Questions and Conclusions) WebAssign Problems ?.? - ?.?? (*Except ?.??) INSERT PICTURE 108
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UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? Day 8 Work Day #2
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After Attendance Place HW on my desk Pickup and sign out your computer
Log into Select the Warm-Up link Complete today’s warm-up and submit it Logout and return the computer to the cart 110
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Feed Back for Google Docs
Was anything confusing on google docs? Noteworthy Student Responses
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Review of Materials WebAssign Questions
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LAB TITLE LAB Work in groups of no more than 4 people.
UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? LAB TITLE LAB Work in groups of no more than 4 people. Return all supplies to the counter/cart. INSERT LAB PICTURE
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LAB TITLE REPORT INSERT LAB PICTURE
UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? LAB TITLE REPORT One Report for each group of no more than 4 people. Refer to the Laboratory Report Expectations Handout. INSERT LAB PICTURE
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UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? WebAssign/Lab Time Work on WebAssign Problems ?.?? - ?.?? (*Except ?.??), the Lab Title Lab Report, or Lab Title Lab Final Copy Criteria State the problem (Ex. Find displacement) Draw a picture/diagram Provide a list or table of all given data (Ex. t = 2 s) Solve the problem symbolically (Ex. v=x/t x = vt) Plug in numbers and units to obtain answer. (Ex. x = (5 m/s)(2 s)= 10 m) Notes about WebAssign: Positive vs. negative answers (Try a negative sign) Look at the final unit (hours or minutes or seconds) 115
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Summary INSERT PICTURE
UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? Summary Answer the Essential Questions. : 3 Things You know well for the test. 2 Questions you still have for the test. 1 Thing you enjoyed from this unit. HW: Lab Title REPORT Lab Title Lab (Questions and Conclusions) WebAssign Problems ?.? - ?.?? (*Except ?.??) INSERT PICTURE 116
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UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? Day 9 Summary / Work Day #3
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After Attendance Place HW on my desk Pickup and sign out your computer
Log into Select the Warm-Up link Complete today’s warm-up and submit it Logout and return the computer to the cart 118
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Feed Back for Google Docs
Was anything confusing on google docs? Noteworthy Student Responses
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Review of Materials WebAssign Questions
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Summary of Chapter 6 Work: Kinetic energy is energy of motion:
UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? Summary of Chapter 6 Work: Kinetic energy is energy of motion: Potential energy is energy associated with forces that depend on the position or configuration of objects.
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UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? Summary of Chapter 6 The net work done on an object equals the change in its kinetic energy. If only conservative forces are acting, mechanical energy is conserved. Power is the rate at which work is done.
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Summary of the Causes of Force
UEQ #1: How do forces affect the motion of objects? UEQ #2: What affects the forces acting on or between objects? Summary of the Causes of Force Newton’s law of universal gravitation: Coulomb’s law: Satellites are able to stay in Earth orbit because of their large tangential speed.
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†Causes of Force Essential Questions
UEQ #1: How do forces affect the motion of objects? UEQ #2: What affects the forces acting on or between objects? †Causes of Force Essential Questions How does centripetal acceleration affect the motion of an object? What affects the strength of forces that act at a distance? How do the four fundamental forces dominate nature? How can we describe the motion of a satellite or planet? How are forces and pressure related for solids, liquids, and gases? †Answer these before the test.
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LAB TITLE REPORT INSERT LAB PICTURE
UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? LAB TITLE REPORT One Report for each group of no more than 4 people. Refer to the Laboratory Report Expectations Handout. INSERT LAB PICTURE
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UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? WebAssign/Lab Time Work on WebAssign Problems , the Lab Title Lab Report, or Lab Title Lab Final Copy Criteria State the problem (Ex. Find displacement) Draw a picture/diagram Provide a list or table of all given data (Ex. t = 2 s) Solve the problem symbolically (Ex. v=x/t x = vt) Plug in numbers and units to obtain answer. (Ex. x = (5 m/s)(2 s)= 10 m) Notes about WebAssign: Positive vs. negative answers (Try a negative sign) Look at the final unit (hours or minutes or seconds) 126
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†EQ/WebAssign/Lab Time
UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? †EQ/WebAssign/Lab Time †Answer the Essential Questions Work on WebAssign Problems , the Lab Title Lab Report, or the Lab Title Lab Final Copy Criteria State the problem (Ex. Find displacement) Draw a picture/diagram Provide a list or table of all given data (Ex. t = 2 s) Solve the problem symbolically (Ex. v=x/t x = vt) Plug in numbers and units to obtain answer. (Ex. x = (5 m/s)(2 s)= 10 m) Notes about WebAssign: Positive vs. negative answers (Try a negative sign) Look at the final unit (hours or minutes or seconds) 127
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UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? Summary Ticket out the Door: Write down two questions and their answer for the test tomorrow and turn it in. One conceptual problem One mathematical problem HW (Write down in your Student Planner): Answer the Essential Questions Lab Title Lab Report Lab Title Lab (Questions and Conclusions) WebAssign Problems WebAssign Final Copy 128
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Conservation of Energy
UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? Day 10: Test Conservation of Energy
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UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? †After Attendance Place HW on my desk (in Reverse Alphabetical Order): WebAssign Final Copy Essential Questions Laboratory Assignment(s) Pickup the following: Chapter 7 Vocabulary Acceleration Scantron Sheet Fill in the following on the scantron sheet front: Name: Write your name on it!! Subject: PIM Test: CEM1 Date: S10 Period: Block 2 130
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†Conservation of Energy Test #1
UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? †Conservation of Energy Test #1 Do not write on Part I (the scantron questions) Put your name on Part II and complete it Verify any corrections below that have made before submitting your test. Complete the Chapter 7 Vocabulary Acceleration Test Corrections Question
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Summary Ticket out the Door: HW:
UEQ: How does an object’s mass distribution and interactions with other objects and force at a distance influence the object’s motion? Summary Ticket out the Door: Turn in the Conservation of Energy Test HW: Chapter 7 Vocabulary Acceleration 132
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Law of Conservation of Energy
How does the transformation of energy affect the total energy of a closed system? Law of Conservation of Energy Will the bowling ball hit his chin upon its return? Explain. Where did the energy go?
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