Energy Review

Energy is the ability to do  ___________.

• Nothing
• Work
• Energy
• Change

The sun’s energy used by green plants to produce food is an example of light energy being converted to what other form of energy?

• kinetic energy
• heat energy
• mechanical energy
• chemical 

The Law of Conservation of Energy states that...

• energy can be destroyed
• energy can not be created or destroyed
• energy can only be destroyed using the force

Which skier will have a greater potential energy? 

• Skier 1
• Skier 2

Energy of motion is which type of energy?

• Potential
• Kinetic
• Sound
• Gravitational

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

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

A cheetah can run briefly with a speed of 31.0 m/s. Suppose a cheetah with a mass of 47.0 kg runs at this speed. What is the cheetah’s kinetic energy?

• 1457 Joules

• 22,584 Joules

• 15 Joules

• 45,167Joules

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. 

Which is the best example that something has kinetic energy?

• a. a car parked on a steep hill 
• b. a tennis ball rolling across the court
• c. a picture hanging on the wall 
• d. a piece of coal before it's burned 

What is kinetic energy?

• energy of work
• energy of motion
• energy of gravity
• energy of power