We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byMelvyn Richardson
Modified over 6 years ago
Kinetic Energy A moving object has energy because of its motion. This energy is called kinetic energy.
Answer Me!!! What must be done for potential energy to get changed into kinetic energy?
Work and Energy
Kinetic Energy The net work done in accelerating an object from rest to some speed is equal to the kinetic energy (KE) of the object.
Practice Problem 1 What is the kinetic energy of a 980 kg race car traveling at 90 m/s?
Practice Problem 2 A 60 kg runner has 1920 J of kinetic energy. At what speed is he running?
Practice Problem 3 If the speed of a car is doubled, what will happen to the kinetic energy of the car?
Practice Problem 4 A cart of mass m traveling at speed v has kinetic energy KE. If the mass of the cart is doubled and its speed is halved, the kinetic energy of the cart will be _______.
Practice Problem 5 Draw the graph that represents the relationship between Kinetic Energy (KE) and velocity of an object (v). KE v
Answer Me!!! A 2 kg cart is at rest on a level floor. Determine the kinetic energy of the cart after a force of 10 N is applied to the cart over a distance of 2 meters.
Unit 7 Energy. Energy is the ability to do work or cause change. I can work…but I won’t.
What is energy? Kinetic Energy.
Practice Problem #1 A weightlifter bench presses 80kg (approx. 175lbs.) 0.75m straight up. a. How much work does she do, assuming constant velocity, in.
Time (s)012 Mass of car & bucket (kg) Mass of falling bucket (kg) Force of falling bucket (F = m x a (earth) ) (N) Acceleration of the system ( F = m.
Reading Quiz A cannonball is dropped from a tower. As it falls,
Acceleration & Distance Uniform Acceleration, Starting from rest
E W Work and Energy Work Done By a Constant Force Work is defined as the product of the constant force and the distance through which the point of application.
a) The kinetic energy of the car. b) The distance it takes to stop.
Uniform Circular Motion. Answer Me!!!! Newton’s Laws state that an object in motion will stay at the same velocity until acted upon by an unbalanced.
Kinetic energy. Equations The kinetic energy of a moving object is one half of the product of its mass multiplied by the square of its velocity. or.
Mechanical Work: More Practice. Gravitational Potential Energy: More Practice.
Potential and Kinetic Energy
Conservation of Energy and Momentum Physics 6(D).
NEWTON’S SECOND LAW OF MOTION Law of Acceleration.
Force, & Newton’s Laws of Motion
Newton’s 2 nd Law. Force on Object Objects acted on by a net unbalanced force will accelerate in the direction of the force This means they will speed.
Jeopardy!. Choose Category & Amount MotionForces Newton’s Laws Work & Power EnergyWaves
Energy can change from one form to another without a net loss or gain.
ENERGY The measure of the ability to do work Conservation of energy -energy can change forms but can not be destroyed -the total amount of energy in the.
© 2021 SlidePlayer.com Inc. All rights reserved.