Quiz on Sound: Loudness and Pitch

What causes sound?

• Heat

• Vibrations

• Pressure

• Light

What does loudness depend on?

• Frequency only

• Temperature

• Amplitude and distance

• Speed of light

The unit used to measure frequency is:

• Newton

• Decibel

• Hertz

• Joule

A high amplitude sound wave produces:

• A higher pitch

• A quieter sound

• A louder sound

• No sound

The peak in a sound wave graph represents:

• Zero amplitude

• Negative amplitude

• Maximum forward movement

• Frequency

What does an oscilloscope measure?

• Frequency only

• Sound temperature

• Sound energy

• Sound wave patterns

When two sound waves reinforce, the result is:

• A lower pitch

• Silence

• A louder sound

• A softer sound

What is pitch?

• How far a wave travels

• How loud a sound is

• How high or low a sound seems

• The amount of energy in a wave

What happens when a peak and a trough of equal size meet?

• They amplify

• They reflect

• They cancel

• They increase pitch

A higher frequency wave will have:

• Higher amplitude

• More waves per second

• Less pitch

• Slower vibrations