Sound waves

The number of wavelengths that pass a point each second

• frequency
• wavelength
• pitch
• amplitude

How high or low a sound is; depends on the frequency (greater frequency= higher pitch)

• pitch
• frequency
• sound
• medium

Highest point of a wave

• crest
• trough
• wavelength
• frequency

Sound is produced by -----

• Heat energy

• Low temperatures

• Vibrations

• Friction

True or False: Sound needs a medium.

• True

• False

True or False: Sound waves are faster than light.

• False

• True

Sound waves travel the fastest through ---

• Liquids

• Gases

• Solids

A disturbance that carries energy such as sound or light

• sound wave
• electrical energy
• amplitude
• volume

The term for how loud or soft a sound is:

• pitch
• volume
• sound
• medium

Which feature of sound is determined by amplitude?

• Pitch
• Smoothness
• Loudness