Sound waves

Sound waves are what kind of wave?

• Longitudinal

• electromagnetic

• gamma

• Surface

If you want to change the pitch of a sound, you have to change the ___

• Frequency

• Speed

• wavelength

• amplitude

What happens when you increase the amplitude of a sound?

• it increases the frequency of the sound

• it increases the wavelength of the sound

• it makes the sound travel faster

• it makes the sound louder

This is the unit used to measure the volume of a sound

• Oscilloscope

• Decibel

• Medium

• Vibration

True or False: Can sound travel through a vacuum (space).

• True

• False

True or False: Sound travels better through solids than through liquids

• True

• False

What is a pitch?

• volume of sound

• the amplitude of the sound wave

• the intensity of a vibration

• highness or lowness of a sound

Sound waves move more quickly through _________________ matter

• dense

• light

Why is sound able to travel faster through a solid than a gas?

• Gas molecules move slowly.

• Solid molecules are packed tightly.

• Sound does not travel faster through a solid than a gas.

• Gas molecules are packed tightly

How does a sound wave interact with a human ear?

• vibrates the ear drum

• bounces off the ear canal

• vibrates the ear canal

• rotates the ear drum