PHY: Conservation of Energy

Is this statement True or False ?

The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another.

• True

• False

What type of energy transformation happens when you put gas in a car?

• Potential - kinetic

• Chemical-to mechanical energy

• Electrical - thermal

• nuclear - electrical

The lamp's Energy tranformation are the following:

• Electrical to radiant to light then heat

• Radiant to Electrical to Heat then light

a person jumps on trampoline. At the top of the jump the most of the energy is in the form of ___

• kinetic energy

• thermal energy

• potential energy

What are the units of energy?

• Watt

• Newton

• Joule

• Kelvin

Which of the following best describes the energy transfer that takes place when you use a battery?

• Electrical -> Nuclear PE

• Electrical -> Chemical PE

• Chemical PE -> Electrical

• Nuclear PE -> Electrical

During photosynthesis, what type of energy transfer takes place?

• Heat -> Light

• Chemical Potential -> Light

• Light -> Chemical Potential

• Heat -> Chemical Potential

Energy of motion is which type of energy?

• Gravitational

• Potential

• Sound

• Kinetic

At which point(s) on the roller coaster is the kinetic energy at its maximum?

answer choices

• A

• B

• C

• D

At which point(s) on the roller coaster is the gravitational potential energy at its maximum?

• A

• B

• C

• D