Physics Quiz Review: Energy, Work, Power and Motion

Energy is the ability to do (a)   .

The mechanical energy of objects in motion is also referred to as (a)   energy.

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

(a)   is the energy due to an object's relative position to the ground.

(a)   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