Work, Power, and Energy Review

Potential energy is based on ....

• height

• speed

Conservation of energy means that

• energy can be created but not destroyed

• energy can be destroyed but not created

• energy can be both created and destroyed

• energy can be neither created nor destroyed

Answer explanation

Conservation of energy states that energy cannot be created or destroyed.

Kinetic energy can be described as

• energy in motion

• stored energy

• a chemical reaction

• connected energy

Answer explanation

A bicycle rider is traveling up a hill. When the rider reaches the top of the hill, she stops to rest. Then she travels down the hill. Which statement correctly describes the potential energy and the kinetic energy of the bicycle rider?

• As the rider moves up the hill, her kinetic energy increases, and her potential energy decreases.

• As the rider reaches the bottom of the hill, her kinetic energy and her potential energy decrease.

• When the rider is at the top of the hill, her potential energy is the greatest, and her kinetic energy is the least.

• When the rider goes down the hill, her potential energy increases, and her kinetic energy decreases.

Answer explanation

Energy due to motion is

• Potential Energy

• Heat

• Kinetic Energy

• Friction

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

• More

• Less

• All of the above

• Same amount

_______ is stored energy.

• Potential Energy

• Heath

• Kinetic Energy

• Friction

What kind of energy is in a rock on the edge of a cliff?

• Kinetic

• Potential

What kind of energy is in a moving skateboard?

• Kinetic

• Potential

What kind of energy is in a stretched rubber band?

• Kinetic

• Potential