MOTION & ITS APPLICATIONS  Introduction (Part 2: Dynamics)

Slides:

Advertisements

Similar presentations

(c) McGraw Hill Ryerson Calculating Acceleration The acceleration of an object is dependent upon the change in velocity and the time required.

Advertisements

(c) McGraw Hill Ryerson Calculating Acceleration.

1. 2 FREELY FALLING OBJECTS - we will consider the case where objects move in a gravity field – namely free-fall motion. We will neglect [for a time]

Free Fall and the Acceleration of Gravity Worksheet

Fall Final Review WKS: WORD PROBLEMS Part II. 1. A car travels at a constant speed of 15 m/s for 10 seconds. How far did it go?

Warm-up  How much force would be needed to move a dog that is 65kg at an acceleration of 2 m/s 2 ? (Find the weight!)  Find the Weight for the following:

Physics 151 Week 5 Day 1 Topics Area under a velocity graph

Physics 151 Week 4 Day 2 Topics –Motion Graphs –Area under a curve (velocity to position) –Constant acceleration equations.

PHYS 201 Chapter 2: Kinematics in 1-D Distance Displacement Speed

Free Fall Objectives 1.) define free fall

Projectile Motion Review

Kinematics in One Dimension. Mechanics Kinematics (Chapter 2 and 3) The movement of an object itself Concepts needed to describe motion without reference.

ACCELERATION. WHAT DO WE DO WHEN MOTION LOOKS LIKE THIS?

Free Fall Motion Notes Day 4.

Motion. Some Motion Terms Distance & Displacement Velocity & Speed Acceleration Uniform motion Scalar.vs. vector.

Chapter 3 Review Acceleration and Free Fall 1.When an object undergoes a change in velocity, it is said to be ______________. ans: accelerating/decelerating.

PHYSICS 103: Lecture 3 Motion under uniform acceleration Freely falling objects çAcceleration due to gravity çTracking a falling object Agenda for Today:

SPH3U Exam Review. 1. Which of the following quantities is a scalar? A. acceleration B. force C. velocity D. work.

Physics Test Review Vocabulary and Trivia. Round 1 Gravity Mass Sliding Friction Unbalanced Forces Force Velocity.

Investigation #2 The Energy of Position Investigating GravitationalPotential Energy Investigating Gravitational Potential Energy.

Notes on Motion VI Free Fall A Special type of uniform acceleration.

2-3 Falling Objects  Gravity - the force of attraction between all matter.  Gravity – one of the FOUR FUNDAMENTAL FORCES in nature.  If there is NO.

Acceleration. How will the box move? 16 N8 N Key Variable - New Acceleration –the rate of change in velocity. Measured – indirectly using velocity, distance.

Chapter 2.2 Objectives and Vocabulary acceleration deceleration Newton's second law Define and calculate acceleration. Explain the relationship between.

Chapter 2: Motion in One Dimension Introduction  The study of motion and of physical concept such as force and mass is called dynamics.  The part of.

Forces An Introduction.

Investigation #2 The Energy of Position Investigating GravitationalPotential Energy Investigating Gravitational Potential Energy.

Physics 151 Week 5 Day 2 Topics –Motion with constant acceleration –Motion Diagrams –Motion Graphs –Area under a curve –Acceleration to velocity –Velocity.

IB Physics 11 Mr. Jean September 16 th, The plan: Video clip of the day Relative Motion Free Fall Motion –Solutions to in class problems 2D motion.

Equations of Motion Review of the 5 Equations of Motion.

Chapter 3 Accelerated Motion. Introduction In this chapter we will examine acceleration and define it in terms of velocity. We will also solve problems.

4.3 Free Fall and the Acceleration due to Gravity

9.2 – Calculating Acceleration The acceleration of an object depends on the change in velocity and the time required to change the velocity. When stopping.

Section 2.3 Gravity and Free Fall. Acceleration due to Gravity ► ► An object is in free fall if it is accelerating due to the force of gravity and no.

Dynamics The branch of physics involving the motion of an object and the relationship between that motion and other physics concepts Kinematics is a part.

Feb. 11, 2009 Graph the following scenario:

a = g = m/s/s a = g = -10 m/s2 2-3 Falling Objects

ConcepTest 2.1 Walking the Dog

Question #1 Answer: unbalanced

SPH3U Exam Review Equations of Motion.

Section 3 Falling Objects

Bell work (9/16): A freight train traveling with a speed of 18.0 m/s begins braking as it approaches a train yard. The train’s acceleration while braking.

A ball is rolling along a flat, level desk. The speed of the ball is 0

Copy notes for slides with underlined headings

Projectile Motion Horizontally

Motion in two directions

Motion in two directions

MOTION GRAPHS Distance – time graphs

Acceleration This lesson defines acceleration, its signs and its units, and provides conceptual, graphical, and quantitative examples. Students use an.

9.2 Calculating Acceleration

Projectile Motion Horizontally

Describing Motion Power Point 02.

9.2 Calculating Acceleration

9.2 Calculating Acceleration

Free Fall Motion.

Concept Test Questions College Physics, 7th Edition

Chapter 4 Linear Motion Pages

Understanding Motion Graphs

Acceleration and Force

9.2 Calculating Acceleration

9.2 Calculating Acceleration

The slope of a velocity-time graph is ______________________.

Calculating Acceleration

9.2 Calculating Acceleration

Day UNIT 5 Free Fall and 2D Motion Topic: Free Fall

Calculating Acceleration

Presentation transcript:

MOTION & ITS APPLICATIONS  Introduction (Part 2: Dynamics) SPH4C COLLEGE PHYSICS MOTION & ITS APPLICATIONS  Introduction (Part 2: Dynamics)

Forces & Technology People use their cars almost every day to get to work or school, or just to get around. Many of us take automotive technology for granted and assume that the car we are driving is safe and reliable. Yet there are many different types of cars, and the technology and safety features in them are quite different. Some safety features of a car are the headrest at the back of each seat, the seat belts, and the airbags. Did you know that many people put their headrest at the incorrect height? Did you know that older- style seat belts actually caused injuries? How do air bags work?

FORCES AND TECHNOLOGY Automotive technology is not the only type of technology involving forces. For example, why is it so easy to slide across ice and wet floors? What is near frictionless carbon, and where might it be used? How are forces involved with sports such as snowboarding, golf, and hockey? These are just a sample of the type of questions that could be asked. However, there are far too many applications of technology in the world to be covered in this unit alone.

Getting Started: Useful Concepts & Skills CONCEPTS REVIEW (a) What is a force? any influence that causes an object to undergo a change in direction and/or velocity (b) Describe as many different types of forces as you can. Give one example of an object experiencing each type of force. answers will vary

Getting Started: Useful Concepts & Skills CONCEPTS REVIEW 2. Examine the velocity-time graph given. How can you tell that the acceleration of each object is uniform but the velocity is not uniform? slope of graph is constant (indicates acceleration is uniform) velocity values are changing (indicates velocity is not uniform)

Getting Started: Useful Concepts & Skills CONCEPTS REVIEW 2. Examine the velocity-time graph given. (b) What is the acceleration of each object? A = 1.2 m/s2 B = 0.8 m/s2 C = 0.4 m/s2

Getting Started: Useful Concepts & Skills CONCEPTS REVIEW 2. Examine the velocity-time graph given. (c) Which object travelled the greatest distance? Explain your reasoning. A – greatest area the under graph

Getting Started: Useful Concepts & Skills CONCEPTS REVIEW 3. Examine the following diagram. (a) Name all the forces acting on the diver at position A; position B. (a) A - force of diving board up - force of gravity down B - air resistance up - force of gravity down

Getting Started: Useful Concepts & Skills CONCEPTS REVIEW 3. Examine the following diagram. (b) Which of the forces you named are non-contact forces? Explain how you can tell? (b) force of gravity down – free fall

Getting Started: Useful Concepts & Skills CONCEPTS REVIEW 4. You drop a golf ball, a heavy brass weight, and a coffee filter from a height of 2.0 m. A motion sensor is used to graph the motion of each object as it falls to the floor. (a) Which line on the graph best represents the motion of each object as it falls toward the ground? Explain your reasoning. (a) A = brass weight B = golf ball C = coffee filter

Getting Started: Useful Concepts & Skills CONCEPTS REVIEW 4. You drop a golf ball, a heavy brass weight, and a coffee filter from a height of 2.0 m. A motion sensor is used to graph the motion of each object as it falls to the floor. (b) Why is the acceleration of the coffee filter different from the acceleration of the other objects? (b) air resistance

Getting Started: Useful Concepts & Skills CONCEPTS REVIEW 5. A student makes the following accusation, “If you throw a penny off the top of the Empire State building the penny will either embed itself in the concrete or kill someone if it hits them in the head.” Is this true?