Energy Assessment Review

Bradley plugs in a radio and turns it on. What change in energy takes place when he does this?

• Light energy changes into sound energy.

• Electrical energy changes into sound energy.

• Sound energy changes into electrical energy.

• Chemical energy changes into sound energy.

Which forms of energy are produced by the sun?

• heat and sound

• light and electricity

• heat and light

• chemical and heat

Which energy change takes place when an electric hair dryer is used?

• electricity to light energy

• electricity to sound energy

• electricity to heat and sound energy

• electricity to heat and chemical energy

Which object has potential energy but not kinetic energy?

• a roller coaster car on the way up a hill

• a roller coaster care stopped at the top of a hill

• a roller coaster halfway down a hill

• a roller coaster nearly all the way down a hill

A rolling ball has kinetic energy. What does it mean for an object to have kinetic energy?

• The object is in motion.

• The object has stored energy.

• The object has used all of its energy.

• The object is passing its energy to another object.

Allison launches a ball into the air. It travels about 3 meters before it lands on the floor. What happens to the kinetic energy of the ball when it is on the floor?

• The kinetic energy is lost.

• The kinetic energy changes into heat.

• The kinetic energy changes into potential energy.

• The kinetic energy is the same after the ball stops.

What is causing the blades of the fan to move in the following picture?

• electrical energy

• sound energy

• wind energy

• light energy

What is causing the blades of the fan to move in the following picture?

• electrical energy

• wind energy

• sound energy

• light energy

When you hear sound, it has a pitch. What is the change in pitch most related to?

• how loud the vibration is

• how long the vibration continues

• how soft the vibration is

• how fast the vibration moves back and forth

Which object produces both light and sound energy?

• fan

• lamp

• fireworks 

• drums