Wave Properties and Behavior

Which of the following correctly describes the relationship between wavelength, frequency, and speed?

• Speed = Wavelength × Frequency

• Speed = Frequency ÷ Wavelength

• Frequency = Speed × Wavelength

• Wavelength = Speed ÷ Frequency

As the frequency of a wave increases, what happens to its wavelength if the speed remains constant?

• It increases

• It decreases (Correct)

• It stays the same

• It becomes zero

Sound waves travel fastest through which of the following?

• Air

• Water

• Steel

• Vacuum

Which type of wave requires a medium to travel?

• Electromagnetic waves

• Radio waves

• Light waves

• Sound waves

When a wave moves from air into water, which of the following is most likely to change?

• Frequency only

• Wavelength and speed

• Speed only

• Wavelength only

The speed of sound is fastest in which of the following?

• Vacuum

• Water

• Air

• Metal

What happens to a wave’s speed when it moves from a less dense to a more dense medium?

• It speeds up

• It slows down (Correct)

• It remains constant

• It stops

Which of the following best describes frequency?

• The time it takes for one wave to pass a point

• The number of waves passing a point per second

• The height of the wave from its rest position

• The distance between two wave crests

Which type of wave does NOT need a medium to travel through?

• Sound wave

• Water wave

• Light wave

• Seismic wave

If the frequency of a wave doubles, what happens to its speed if the medium remains constant?

• The speed doubles

• The speed remains the same

• The speed decreases

• The speed becomes zero