Chapter 2, Section 8 Potential and Kinetic Energy: Energy in the Pole Vault.

Slides:



Advertisements
Similar presentations
Energy Chapter 5 Section 2. What is Energy? Energy – A scalar quantity that is often understood as the ability for a physical system to produce changes.
Advertisements

Energy Chapter 4.
Potential and Kinetic Energy: Energy in the Pole Vault
Chapter 12: Energy & Work Unit Integrated Science I.
Forms and Transformations
Chapter 15 Energy. Windup Toy xwCUzYuiTdkhttp:// xwCUzYuiTdk.
Energy. Chapter 15 Section 1  Vocabulary o Energy- is the ability to do work o Kinetic Energy- the energy of motion o Potential Energy- energy that is.
What is the relationship between kinetic and potential energy?
Energy Review of Chapter 4. Energy Energy can neither be created or destroyed Law of Conservation of Energy Law of Conservation of Energy We can only.
Physics Chapter 11 Energy.
Energy and Conservation Physics Chapter 5-2 (p ) Chapter 5-3 (p )
Kinetic and Potential Energy
Energy Review What do you know?. Do Now Statement: The farther above the ground an object, such as a book, is raised, the greater the object’s Gravitational.
Work IN, Work OUT The Work/Energy Principle. Kinetic Energy KE depends on mass and velocity Work done on an object will change KE.
Unit 2 Lesson 2 Kinetic and Potential Energy
Work and Energy.
Work and Energy Energy Chapter 5: Section 2. Learning Targets Identify several forms of energy Calculate kinetic energy for an object Distinguish between.
Energy Chapter 7.
Physical Science Chapter 15 Review Game. Energy Forms of Energy Energy ConversionsProblems 1 point 1 point 1 point 1 point 1 point 1 point 1 point 1 point.
Work & Energy Chapter 12 Notes. Work / Work has a specific meaning in science - Work is done when a force causes a change in the position of an object.
Outline #5 ENERGY. #1Energy The ability to cause change All motion involves change in POSITION, SPEED, ACCELERATION and DISPLACEMENT. KINETIC ENERGY-Matter.
Chapter 4 Energy. 4-1: The Nature of Energy When something is able to change its environment or itself, it has energy.
Chapter 15 Energy 15.1 Energy and Its Forms. How are energy and work related? Energy is the ability to do work. Energy and Work Work is a transfer of.
Energy  Change Requires Energy  What is energy? –The ability to cause change or do work  Is energy scalar or vector?
LAW OF CONSERVATION OF ENERGY.  #1: What caused the penny to go up into the air?  What did you have to do to make sure it went almost up to the ceiling.
Work, Power and Energy.
Energy, Work, and Transfer of Energy Physical Science Chapter 12.
Chapter 4 Energy
Chapter 5.2. What do you think? What is meant when scientists say a quantity is conserved? Describe examples of quantities that are conserved. Are they.
P. Sci. Unit 4 Chapter 15 Energy. Energy and Work Whenever work is done, energy is transformed or transferred to another system. Energy is the ability.
Work, Power & Energy How do they relate? (Stone, Ebener, Watkins)
Energy Physics 4 th Six Weeks. What is Energy? Energy is defined as the ability to produce a force. Energy is also defined as the ability to cause a change.
DAILY QUESTION January 28, What is potential energy?
Build a Prototype – Phase 2: Effect of Type of Pulley on Force  Introduction  Can a pulley reduce the amount of force required to pull up an object?
THERMAL Energy Chapter 5.
Section 3Work and Energy Bellringer You should already have learned that energy is always conserved. Instead of being created or destroyed, energy just.
ENERGY. KINETIC ENERGY ENERGY OF MOTION THE FASTER AN OBJECT MOVES; THE MORE KE IT WILL HAVE KE IS ALWAYS “+”, IF YOU ARE MOVING; THEN YOU HAVE IT. EXAMPLE:
Energy – the ability to do work W = Fd = m a d V f 2 = V i 2 + 2a  x V f 2 - V i 2 = + 2a  x V f 2 - V i 2 = a  x 2.
Forms of Energy ENERGY motion of electric charges bonding of atoms motion of objects internal motion of particles changes in the nucleus The ability to.
Energy Notes Energy is one of the most important concepts in science. An object has energy if it can produce a change in itself or in its surroundings.
Chapter 2, Section 4 Projectile Motion: Launching Things into the Air.
Energy Review: Chapter 5 Section 1, Pages Kinetic Energy (KE) Energy of _________________________________________ If an object is ___________________________.
WHAT IS ENERGY? UNIT 3: ENERGY AND MOTION. I. ENERGY BASICS a.Energy is the ability to do work or cause change b.Work is when a force moves an object.
examples that align with this definition of work?
Unit 2 Lesson 2 Kinetic and Potential Energy
Monday, August 21, 2017 LT: Students will understand PE and KE.
Energy and Energy Resources Pages 240 to 247
P. Sci. Unit 4 Chapter 15 Energy.
Chapter 5.2 Notes Potential Energy.
Unit 2 Lesson 2 Kinetic and Potential Energy
Let’s Play! Please listen carefully and think before answering.
Unit 2 Lesson 2 Kinetic and Potential Energy
The ability to cause change
Describing Energy.
Potential and Kinetic Energy
P2.3 Forces in Action.
Energy and Energy Resources Pages 240 to 247
Potential and Kinetic Energy
CHAPTER 4.
Energy.
Chapter 4 Energy.
Science 9 Chapter 4: Energy
Energy.
Chapter 9 Section 4 – pg 358 Energy.
Review.
Projectile Motion: Launching Things into the Air
Mechanical Energy.
Ch 4 Energy Kinetic Energy (KE) – the energy a moving object has because of its motion; depends on mass and speed of object KE = mv2/2 Joule – SI unit.
Net Force Power Up What are balanced forces?
Presentation transcript:

Chapter 2, Section 8 Potential and Kinetic Energy: Energy in the Pole Vault

November 1, 2010 HW: 2.8 PTG #1, 2, 3, 6, 7, 8, 13, Due Friday Learning Objectives:  Describe kinetic, gravitational potential, and elastic energy and the variables that influence them –Explain conservation of energy Success Criteria: –Apply equations for kinetic energy, gravitational potential energy, and elastic energy –Recognize that restoring forces are active when objects are deformed –Apply the equation for the force necessary to compress or stretch a string –Conduct simulations of transformations of energy involved in the pole vault. Do Now: –Write LO and SC in notebook –WDYS/WDYT pg 220 Agenda: –Do Now –LO/SC –Investigate

Investigate #1-9 Worksheet from Mattea

November 2, 2010 HW: 2.8 PTG #1, 2, 3, 6, 7, 8, 13, Due Friday Learning Objectives:  Describe kinetic, gravitational potential, and elastic energy and the variables that influence them –Explain conservation of energy Success Criteria: –Apply equations for kinetic energy, gravitational potential energy, and elastic energy –Recognize that restoring forces are active when objects are deformed –Apply the equation for the force necessary to compress or stretch a string –Conduct simulations of transformations of energy involved in the pole vault. Do Now: –Thinking about pole vaulting… What did the ruler represent? The ball? The penny? Agenda: –Do Now –LO/SC –Investigate(Finish) –Physics Talk

2.8 Physics Talk What is happening to speed at each position? 1.Force gives the ball an upward speed 2.Speed decreases as the ball is acted upon by gravity 3.Vertical position is maximum, but vertical speed is 0 4.Ball increases in speed as it is acted upon by gravity

2.8 Physics Talk What changed in terms of energy? Total energy is always the same, it is just transformed from one form to another

2.8 Physics Talk What is Kinetic Energy (KE)? What is Gravitational Potential Energy (GPE)? Energy associated with motion The energy an object possesses because of its vertical position from Earth

2.8 Physics Talk What is potential energy (PE)? What is the Law of Conservation of Energy? Energy associated with position (stored) Energy cannot be created or destroyed! It can be transformed from one form to another but the total energy remains constant!

2.8 Physics Talk What changed in terms of energy? 1.Ball has only kinetic energy 2.Kinetic energy decreases, Gravitational Potential Energy increases 3.Kinetic Energy=0, Max GPE 4.GPE decreases, Kinetic Energy increases

2.8 Physics Talk What energy is needed to get the ball moving? To get it to stop? What is the equation for Work? WORK! Work is the force applied over a distance Causes the change in forms of energy Work=Force x Distance W=Fd Units=Joules J W dF

Think about launching the penny… Work was done on the ruler to add energy to the system After bending the ruler it had Elastic Potential Energy When you released the ruler it applied a force over a distance to the penny (work) The penny now has Kinetic Energy As it travelled up, the KE became GPE At the peak, the penny had no KE and all GPE As the coin fell GPE became KE Sum of the GPE and KE was always the same (conservation of energy)

November 3, 2010 HW: 2.8 PTG #1, 2, 3, 6, 7, 8, 13, Due Friday Learning Objectives:  Describe kinetic, gravitational potential, and elastic energy and the variables that influence them –Explain conservation of energy Success Criteria: –Apply equations for kinetic energy, gravitational potential energy, and elastic energy –Recognize that restoring forces are active when objects are deformed –Apply the equation for the force necessary to compress or stretch a string –Conduct simulations of transformations of energy involved in the pole vault. Do Now: –Explain what happens to KE and PE as you ride your bike up a hill. Agenda: –Do Now –LO/SC –Vocab Activity

Pole Vaulting!!! citWzywM&feature=fvwhttp:// citWzywM&feature=fvw Food energy provides muscular energy to run which is KE Vaulter’s KE is converted to Elastic PE in the pole As the pole unbends, EPE is transferred to the vaulter as GPE As vaulter falls GPE is transferred to KE Total energy remains the same!

Equations!!! Work Elastic (spring)PE W=Fd F=force (N) d=distance (m) W=work (Joules J) EPE=1/2kx 2 K=spring constant (N/m) x=amount of bend in meters EPE=Joules (J)

Equations!!! Gravitational Potential Energy Kinetic Energy GPE=mgh GPE=Joules (J) m=mass (kg) g=gravity (m/s 2 ) h-=height (m) KE=1/2mv 2 KE=Joules (J) m=mass (kg) v=speed (m/s)

Practice Problems Pg #1-Whole group #2-Whole Group #3-Small Group #4-Individually

Vocab Activity Book DefinitionDefinition in your words 2.8 Vocab Boxes.docx Example or EquationPicture/Drawing

November 4, 2010 HW: 2.8 PTG #1, 2, 3, 6, 7, 8, 13, Due Friday Learning Objectives:  Describe kinetic, gravitational potential, and elastic energy and the variables that influence them –Explain conservation of energy Success Criteria: –Apply equations for kinetic energy, gravitational potential energy, and elastic energy –Recognize that restoring forces are active when objects are deformed –Apply the equation for the force necessary to compress or stretch a string –Conduct simulations of transformations of energy involved in the pole vault. Do Now: –Find the equations for EPE, KE, W, etc. Agenda: –Do Now –LO/SC –Practice Problems

Practice Problems Work and Energy Practice Problems.pdfWork and Energy Practice Problems.pdf

November 5, 2010 HW: None Learning Objectives:  Describe kinetic, gravitational potential, and elastic energy and the variables that influence them –Explain conservation of energy Success Criteria: –Apply equations for kinetic energy, gravitational potential energy, and elastic energy –Recognize that restoring forces are active when objects are deformed –Apply the equation for the force necessary to compress or stretch a string –Conduct simulations of transformations of energy involved in the pole vault. Do Now: –Get out 2.8 HW Agenda: –Do Now –LO/SC –Review HW –Relay!

Relay Energy Relay.pdf Work and Energy Relay.pdf