What is the term for the number of waves that pass a fixed point each second?

• wave speed

• amplitude

• frequency

• period

Which of the measurements would be the most helpful in determining the wavelength?

• W

• X

• Y

• Z

Which of the following is present in both drawings?

• longitudinal waves

• diffraction

• destructive interference

• refraction

Which of the following is a transverse wave?

• sounds generated by a violin

• vibrations that are felt through a rock

• sounds made underwater

• a wave produced on a rope

Sound is a compression wave with regions of greater and lesser density. The less-dense region of a sound wave is a

• crest

• rarefaction

• diffraction

• compression

In 1 second, four crests of a wave pass a certain point. What is the wave’s frequency?

• 2 Hz

• 3 Hz

• 4 Hz

• 5 Hz

Which statement best explains frequency?

• Frequency is the number of wavelengths that pass a point per second.

• Frequency is the number of crests that pass a point in total.

• Frequency is the number of wavelengths that pass a point in total.

• Frequency is the amplitude per second.

A certain sound wave has a wavelength of 2 m and a frequency of 170 hertz. Use the wave velocity equation to calculate the velocity of this wave.

• 340 m/s

• 340 Hz

• 255 m/s

• 255 Hz

A ______ is a repeating disturbance or movement that transfers energy through matter or space.

• medium

• fluid

• material

• wave

The low point on a wave is called its ______.

• crest

• trough

• rest position

• none of these