Producing and Detecting Sound

What is the term used to describe ?

• crest

• trough

• amplitude

• wavelength

Tags

NGSS.MS-PS4-1

When you speak into a landline phone, your voice travels in small __________.

• heat waves

• light waves

• sound waves

• none of the above

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

A form of energy that is produced when an object vibrates.

• sound

• amplitude

• frequency

• wavelength

Tags

NGSS.MS-PS4-1

Why is sound able to travel faster through a solid than a gas?

• Gas molecules are packed tightly.

• Sound does not travel faster through a solid than a gas.

• Solid molecules are packed tightly.

• Gas molecules move slowly.

Tags

NGSS.MS-PS4-2

When you speak into a cell phone a microphone turns your voice into ___________ signals.

• electrical

• sound

• heat

• light

Tags

NGSS.MS-PS4-2

The speaker has a part called a ___________ that vibrates and causes the glitter to move.

• echolocation

• diaphragm

• equilibrium

• frequency

The volume __________ when we hit the noisy musical instruments with more energy.

• increased

• decreased

• contracted

• compressed

Answer explanation

More energy caused a louder sound, and less energy caused a softer sound. One possibility for why energy causes this effect is that the amount of energy could be related to the amount of vibration.

Tags

NGSS.MS-PS4-1

What are longitudinal waves that can only travel through matter?

• heat waves

• light waves

• ocean waves

• sound waves

What is the primary medium through which sound travels in air?

• A) Light waves

• B) Sound waves

• C) Heat waves

• D) Water waves

Tags

NGSS.MS-PS4-2

Which part of the human ear is responsible for detecting sound vibrations?

• A) Cochlea

• B) Iris

• C) Retina

• D) Lens