Sound Waves Physics

What type of wave is sound?

• Transverse wave

• Longitudinal wave

• Electromagnetic wave

• Surface wave

How do sound waves move through air?

• By creating a vacuum

• By changing temperature

• By electromagnetic fields

• By air particles vibrating from side to side

What happens when sound waves hit the eardrum?

• They are reflected back

• They cause the eardrum to vibrate

• They pass through without effect

• They are absorbed

What is the frequency range of normal human hearing?

• 10 Hz to 10,000 Hz

• 5 Hz to 25,000 Hz

• 20 Hz to 20,000 Hz

• 100 Hz to 15,000 Hz

What does not change when a wave changes medium?

• Amplitude

• Frequency

• Speed

• Wavelength

What effect does a high frequency have on sound?

• It gives the sound a high pitch

• It makes the sound quieter

• It gives the sound a low pitch

• It makes the sound louder

What does a large amplitude in a sound wave indicate?

• Quiet sound

• Loud sound

• Low pitch

• High pitch

Why can't sound waves pass through a vacuum?

• Because sound waves need particles to vibrate

• Because the vacuum amplifies the sound too much

• Because of the lack of electromagnetic fields

• Because sound waves are absorbed by a vacuum

What is a reflected sound wave called?

• Diffraction

• Reverb

• Refraction

• Echo

How do sound waves travel faster?

• In liquids

• In solids

• In vacuum

• In gases