sound waves ch #12 class 7th

What is the distance between a point on one wave and a similar point on the next wave?

• Wavelength

• Pitch

• Frequency

What is the number of waves that pass a point in a certain amount of time?

• Wavelength

• Pitch

• Frequency

If you change the frequency, or wavelength, of a sound wave, what do you change?

• loudness

• pitch

• vibration

• compression

If you change the amplitude, or height, of a sound wave, what do you change?

• loudness

• pitch

• vibration

• compression

Sound cannot travel through

• Water

• metal

• air

• empty space

In which of these places would sound travel fastest?

• in outer space

• in the ocean

• through a solid wood wall

• on a playground

Which mammal uses sonar to detect objects in the dark?

• Mouse

• Dog

• Bat

In a ________________________ wave, the particles vibrate in the same direction that the wave travels, or parallel to the wave.

• light wave

• microwave

• water wave

• longitudinal wave