Unit Test — Unit test Answers

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Which statement best describes how waves carry energy?

Energy moves from one place to another through the wave.

Energy increases as it moves through the wave.

Energy is completely consumed by the beginning of the wave.

Energy builds through the wave and is released at the end.

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Sound Wave A is moving through a medium that is decreasing in temperature.Sound Wave B is moving from a liquid to a gas medium.

They will speed up.

They will increase the density of their medium.

They will slow down.

They will decrease the density of their medium.

Which types of waves requires matter to carry energy?

electromagnetic waves only

mechanical waves only

electromagnetic and mechanical waves

longitudinal and electromagnetic waves

Which part of the electromagnetic spectrum has the longest wavelengths?

radio waves

gamma rays

infrared light

ultraviolet light

Which is a property of laser light that makes it useful for cutting metals?

its focused energy

its single color

its scattered energy

its multiple colors

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