Exploring Sound Waves and Human Hearing

What type of wave are sound waves classified as?

• Surface wave

• Longitudinal wave

• Transverse wave

• Electromagnetic wave

Tags

NGSS.MS-PS4-1

Why does sound travel faster in solids than in gases?

• Because gases have more particles

• Because solids are more elastic

• Because particles are more densely packed in solids

• Because solids have higher temperatures

Tags

NGSS.MS-PS4-2

Which of the following does NOT affect the speed of sound?

• The medium's density

• The sound's frequency

• The temperature of the medium

• The pressure of the medium

Tags

NGSS.MS-PS4-2

Why can't sound travel through a vacuum?

• Because the pressure is too high

• Because sound waves are too weak

• Because there are no particles to transmit the sound

• Because it's too cold

What happens to the wavelength of a sound wave as it speeds up?

• It becomes zero

• It increases

• It decreases

• It remains constant

Tags

NGSS.HS-PS4-1

What happens to sound waves as they pass between different mediums?

• Their frequency changes

• Their speed remains constant

• Their wavelength changes

• They become inaudible

Tags

NGSS.MS-PS4-2

What causes echoes?

• Refraction of sound

• Absorption of sound

• Reflection of sound

• Diffraction of sound

Tags

NGSS.MS-PS4-2

Which part of the ear converts vibrations into electrical signals?

• Eardrum

• Ossicles

• Cochlea

• Auditory nerve

What is the range of human hearing in hertz?

• 50 to 15,000 Hz

• 20 to 20,000 Hz

• 100 to 5,000 Hz

• 10 to 10,000 Hz

Tags

NGSS.MS-PS4-1

As we age, how does our hearing range change?

• It fluctuates unpredictably

• It decreases

• It remains the same

• It increases