Physics Quiz Review: Energy, Work, Power and Motion

Energy is the ability to do ________.

The mechanical energy of objects in motion is also referred to as ________ energy.

________ energy exists in the bonds that hold them together; the stored energy an object has when not in motion.

________ is the energy due to an object's relative position to the ground.

________ is the energy due to tension in an elastic material such as a string, bungee, or spring.

What is the kinetic energy of a 5 kg drone moving at 10 m/s?

• 25 J

• 250 J

• 25 N

• 250 N

What is the gravitational potential energy of an 15 kg rock resting on the edge of an 80 m cliff?

• 18.2 J

• 352 J

• 3472 J

• 11772 J

A spring within a stapler is compressed 0.1 m. It has a spring constant of 50 N/m. What is the elastic potential energy of the spring?

• 0.25 J

• 2.5 J

• 25 J

• 250 J

Your friend's younger sibling finds a slingshot to launch snowballs at you. They pull a 0.2 kg snowball back 0.5 m using a force of 120 N. How much work is done?

• 0.6 J

• 6 J

• 60 J

• 600 J

Consider the previous problem. Your friend's young sibling decides to launch the 0.2 kg snowball straight up to see how high it will go after pulling back 0.5 m with a force of 120 N. What is the snowball's maximum height?

• 0.306 m

• 3.06 m

• 30.6 m

• 306 m