standing waves 2

What happens when two waves meet and their displacements are in the same direction?

• They cancel each other out.

• They change color.

• They form a larger wave.

• They stop moving.

What is the result when two waves meet and their displacements are in opposite directions?

• They form a larger wave.

• They create a new wave.

• They change speed.

• They cancel each other out.

How does a wave behave when it hits a free boundary?

• It speeds up.

• It stops moving.

• It reflects and inverts.

• It reflects without inverting.

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What is a node in a standing wave?

• A point of maximum displacement.

• A point of zero displacement.

• A point where waves start.

• A point where waves end.

What happens to the wavelength as the frequency of a standing wave increases?

• The wavelength disappears.

• The wavelength decreases.

• The wavelength stays the same.

• The wavelength increases.