Oscilloscope | Starter Quiz | Oak National Academy

What does a loudspeaker do when it makes a louder sound?

• vibrates in and out more slowly

• vibrates in and out more quickly

• vibrates in and out a bigger distance

• vibrates in and out a smaller distance

Answer explanation

The bigger the vibration, the louder the sound.

What causes a soundwave to have a bigger amplitude?

• a bigger vibration

• a smaller vibration

• a faster vibration

• a slower vibration

Answer explanation

Amplitude is equal to the maximum displacement of a wave, which is the size of the vibration.

What sort of sound has a bigger amplitude?

• a louder sound

• a quieter sound

• a sound with a higher note

• a sound with a lower note

Answer explanation

A bigger amplitude makes a louder sound.

What does a loudspeaker do when it makes a higher pitched sound?

• vibrates in and out more slowly

• vibrates in and out more quickly

• vibrates in and out a bigger distance

• vibrates in and out a smaller distance

Answer explanation

Faster vibrations make higher pitched sounds.

What causes a sound to have a lower frequency?

• a bigger vibration

• a smaller vibration

• a faster vibration

• a slower vibration

Answer explanation

The slower the vibration, the lower the frequency.

What sort of sound has a higher frequency?

• a louder sound

• a quieter sound

• a sound with a higher note

• a sound with a lower note

Answer explanation

The higher the frequency of a sound, the higher its note (or pitch).