Chapter 15

How do you calculate kinetic energy?

(KE)= 1/2mv2

How do you calculate gravitational potential energy?

(PE)= mgh

Calculate the kinetic energy of a 0.25-kg toy car traveling at a constant velocity of 2 m/s.

0.5 J

A 0.1-kilogram ball rolls across the floor at a speed of 2 meters per second. Another 0.1-kilogram ball rests on a shelf 1 meter above the floor. Which ball has more energy?

0.98 J &' 0.2. The ball on the table has more energy than the ball on the floor.

A book on a shelf 2.0 meters above the floor has a mass of 1.5 kilograms. What is the gravitational potential energy of the book?

29.4 J

Describe elastic potential energy

Elastic potential energy is the potential energy of an object that is stretched or compressed

When work is done, what is being transferred?

Energy

What is energy?

Energy is the ability to do work

What is potential energy?

Is energy that is stored as a result of position or shape

What is the energy of motion?

Kinetic