Physics Waves Quiz

A vibrating object makes 25 complete back and forth vibrations in 5 seconds. The frequency of vibration of the object is _____ Hertz.

• 0.25

• 4.0

• 5.0

• 20.0

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Consider Diagram A and Diagram B below: Compared to the wave in Diagram B, the wave in Diagram A has _____.

• the same amplitude by a larger wavelength

• a larger amplitude and a larger wavelength

• a smaller amplitude and the same wavelength

• the same amplitude and a smaller wavelength

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What is the amplitude of this wave?

• 2 m

• 4.0 m

• 5.0 m

• 8.0 m

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What is the wavelength of this wave?

• 2.5 m

• 4.0 m

• 5.0 m

• 8.0 m

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What is the frequency of this wave in Hertz?

• 0.25

• 0.5

• 2

• 4

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What is the wavelength of this wave?

• 4.0 cm

• 2.0 cm

• 1.0 cm

• Cannot be determined

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If the frequency of a sound wave is decreased, what change would happen to the sound?

• The sound would increase in loudness

• The sound would decrease in loudness

• The sound would have a higher pitch

• The sound would have a lower pitch

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A rope vibrates to form the standing wave pattern shown at the left. How many antinodes are present in the rope?

• 3

• 4

• 5

• 8

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The diagram at the right depicts a standing wave pattern in an open-end air column. This is the pattern for the ____ harmonic.

• First

• Second

• Third

• Fourth

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The diagram at the right depicts a standing wave pattern in a closed-end air column. How many nodes and antinodes are present in this pattern?

• 2 nodes, 2 antinodes

• 3 nodes, 2 antinodes

• 4 nodes, 3 antinodes

• 3 nodes, 3 antinodes

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