Potential and Kinetic Energy

Which object has the most potential energy?

• A ball resting on the ground.

• A ball being thrown at 100 miles per hour.

• A ball on top of a refrigerator.

• A ball resting on the edge of a cliff.

When does a yo-yo have the most potential energy?

• When it's at its highest point.

• When it's at its lowest point.

• When it's moving between its highest and lowest points.

• When it's moving at its top speed.

Four cars are positioned at the top of a hill. Which car has the most potential energy?

• A

• B

• C

• D

Why do objects at high elevations have more potential energy than objects at low elevations?

• Because the thinner air at higher elevations means objects have a greater potential to move very fast

• Because objects at high elevations are closer to the sun, which is the source of all energy on earth

• Because objects at high elevations tend to move slower than objects at low elevations

• Because gravity gives objects at high elevations the potential to fall much further

Which type of energy increases when you compress a spring?

• elastic potential energy

• kinetic energy

• gravitational potential energy

Elastic potential energy is energy stored in an object, such as a spring, due to the object being stretched or compressed. In which position is it most likely that the spring has lost its elastic potential energy?

• W

• Y

• X

• Z

At which point does the ball has the greatest gravitational potential energy (GPE)?

• A

• G

• D

• C

• G

How could you increase the gravitational potential energy of an object without changing its mass and gravity?

• Make the object larger

• Lower the object towards the ground

• Raise the object farther off the ground

• Allow the object to roll on the ground

The faster an object moves, the ________ kinetic energy it has. 

• more
• less
• none of the above
• all of the above 

What would have the greatest kinetic energy?

• A car driving down a hill.
• A person running down a hill. 
• A ball rolling down a hill.