FTA109 QUIZ

What is the unit used to measure frequency?

• Decibel (dB)

• Hertz (Hz)

• Meter (m)

• Second (s)

Which of the following sound types is known to have the highest pitch?

• Dog bark

• Cat meow

• Whistle

• Human scream

What does amplitude determine in a sound wave?

• Pitch

• Loudness

• Timbre

• Direction

Which sound is typically associated with the lowest pitch?

• Cello

• Thunder

• Footsteps on gravel

• High hat cymbal

What is the speed of sound in air at room temperature?

• 340 km/h

• 340 m/s

• 1400 m/s

• 4500 m/s

What kind of wave is a sound wave in air?

• Transverse

• Longitudinal

• Surface

• Rotational

What is a waveform?

• The pitch of a sound

• A visual representation of sound over time

• A vibration in the air

• Sound energy

What is the period of a wave?

• Distance travelled in one cycle

• Time for one molecule to oscillate

• Speed of wave

• Amplitude of wave

What happens to the speed of sound in warmer air?

• It travels slower

• It stays the same

• It travels faster

• It stops

What does a shorter wavelength mean?

• Lower frequency

• Higher frequency

• Less pitch

• No change