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AP® Physics 1 & 2

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Matter and Energy Conservation

APPH12-BLBOVU

Which one of the following is the most correct statement about the conservation of matter and energy, when modern physics ideas are applied?

A

Matter is conserved in all situations, and energy is also conserved in all situations.

B

Matter is conserved in all situations, but energy is not always conserved.

C

Energy is conserved in all situations, but matter is not always conserved.

D

Neither matter nor energy is truly a conserved quantity, because matter can be transformed into energy and energy can be transformed into matter.