Energy Quiz

Energy is

• kinetic

• the ability to do work

• potential

• a bunny

Two moving objects will change their motion if which of the following is true?

• There is no friction on the objects.

• The objects collide with each other.

• One object is heavier than the other.

• The objects are moving in space.

Potential energy is

• energy in motion

• an object about to fall

• stored energy

• an object falling

A moving object will have more energy when the object–

• moves faster.

• stops moving.

• changes direction.

• loses mass.

Kinetic energy is

• the ability to do work

• an object falling

• stored energy

• energy in motion

When two cars collide, which of the following is NOT evidence that energy has been transferred?

• A sound is produced.

• The cars changed direction.

• The drivers attempted to stop before the accident.

• The cars changed speed.

Energy transfer is

• when potential energy turns into kinetic energy

• when kinetic energy passes from one object to another

• when electrical energy turns into heat energy

• when you rub your hands together to create heat

Four identical balls are rolled from the same position at the same time. The illustration shows each ball’s starting position and ending position after rolling for two seconds. Which ball had the most energy?

• Ball 1

• Ball 2

• Ball 3

• Ball 4

Which of these is NOT an example of energy transformation?

• potential energy turns into kinetic energy

• energy passes from one object to another

• kinetic energy turns into sound energy

• kinetic energy turns into heat energy

Two model trains are running on tracks that are lined up next to each other. The two trains are not moving at the same speed. What would cause one train to move faster than the other?

• The slower train’s cars have less mass.

• The faster train has more energy.

• The faster train has a wider track.

• The slower train has an older engine.