Energy and Matter Review

Energy can be created by a machine.

• True

• False

If you pull a rubber band back but don't release it, what type of energy does the rubber band have?

• Kinetic energy

• Potential energy

• Motion energy

At which position does the swing (pendulum) have the greatest kinetic energy?

• Position 1

• Position 2

• Position 3

When a baby shakes a rattle, mechanical energy from shaking changes to what type of energy?

• Light

• Sound

• Heat

Which two factors affect the amount of kinetic energy in a moving car?

• Height and velocity

• Height and mass

• Mass and velocity

Which statement best describes the energy change that occur while a child is riding on a sled down a steep, snow-covered hill?

• Kinetic energy increase and potential energy decreases.

• Kinetic energy decrease and potential energy increases.

• Both potential and kinetic energy decreases.

Which would correctly describe the transfer of energy as the children play baseball?

• Chemical energy to mechanical energy

• Sound energy to mechanical energy

• Light energy to thermal energy

Which sequence of energy transformations occurs after a battery-operated flashlight is turned on?

• Light --> Chemical

• Electrical --> Chemical

• Electrical --> Light

What type of energy is used to change a solid to a liquid?

• light

• heat

• electrical

What does the term endothermic mean?

• Energy enters a system turning a solid to a liquid.

• Energy exits a system turning a liquid to a solid.