End Of Course Review #3: Question Preview (ID: 28584)


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Temperature is the average kinetic energy of the molecules in a substance.
a) true b) false c) d)
When ice melts it is an _____ reaction.
a) endothermic b) exothermic c) d)
The temperature at which a liquid turns into a solid is called its
a) boiling point b) melting point c) freezing point d)
Heat energy moving between two touching objects is called...
a) convection b) conduction c) d)
Adding heat to a substance makes it
a) contract (get more compact or smaller) b) expand (get bigger) c) d)
Molecules move slowest in a
a) liquid b) gas c) solid d)
The temperature at which a liquid turns into a gas is called its
a) boiling point b) melting point c) freezing point d)
Molecules move fastest and are farthest apart in a
a) liquid b) gas c) solid d)
Heat energy moving in a current is called
a) convection b) conduction c) d)
____ is the energy of motion.
a) Kinetic energy b) Potential c) d)
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