Unit Test — Unit test Answers

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What is the source of almost all energy on Earth?

A
Earth’s hot core
B
the Sun
C
stored carbon
D
moving water
23

Which two types of potential energies would be types of mechanical energies?

A
electrical and kinetic
B
nuclear and chemical
C
radiant and thermal
D
elastic and gravitational
24

Which is occurring when work is being done?

A
Energy is being reverted.
B
Energy is being decreased.
C
Energy is being increased.
D
Energy is being transferred.

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