MP2 Test review

The energy of motion is known as

• kinetic energy

• potential energy

• magnetic energy

• thermal energy

One factor that determines the kinetic energy of an object is its

• direction of motion

• mass

• volume

• shape

"Stored" energy is known as

• mechanical energy

• kinetic energy

• nuclear energy

• potential energy

Household appliances convert electricity into one or more different forms of energy. An electric fan can best be described as converting electricity into

• heat energy only

• heat energy and sound energy only

• heat energy, sound energy, and mechanical energy only

• heat energy, sound energy, mechanical energy, and chemical energy

Solar cells can capture energy from our Sun and transfer this energy for many practical purposes. list in correct order the energy exchanges shown by the diagram

• Light to Electrical to Light

• Light to Mechanical to Light

• Electrical to Mechanical to light

• Light to electrical to mechanical

A greenhouse is warm because it converts

• light energy to heat energy

• heat energy to light energy

• chemical energy to heat energy

• nuclear energy to light energy

Which of the following best describes evaporation/

• A liquid changes to a solid

• a solid changes to a gas

• a solid changes to a liquid

• a liquid changes to a gas

Which of the following happens as a phase changes from A to B to C?

• The molecules gain energy

• the molecules lose energy

• the molecules move further apart

• the molecules move faster

As ice melts, its molecules

• absorb heat energy and move farther apart

• absorb heat energy and move closer together

• release heat energy and move farther apart

• release heat energy and move closer together

Which change occurs at the point when a liquid becomes a solid?

• energy is absorbed

• energy is neither absorbed nor released

• the temperature decreases

• the temperature increases