Eight

A sound wave completes 4 cycles in 1 second. The frequency of vibration of the object is ___ Hertz.

• 0.25

• 4.0
• 5.0

• 20.0

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 smaller wavelength

• a smaller amplitude and the same wavelength

• the same amplitude and a smaller wavelength

What is the amplitude of this wave?

• 2.5 m

• 4.0 m

• 5.0 m

• 8.0 m

What is the wavelength of this wave?

• 2.5 m

• 4.0 m

• 5.0 m

• 8.0 m

What is the frequency of this wave in Hertz?

• 0.25

• 0.5

• 2

• 4

What is the wavelength of this wave?

• 0.4 m

• 2.0 m

• 4.0 m

• Cannot be determined

If the frequency of a sound wave is increased, 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

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

• 3

• 4

• 5

• 8

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

• Third
• Fourth

• Fifth

• Sixth

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

• 2 nodes, 3 antinodes

• 3 nodes, 3 antinodes