Frequency

The number of wavelengths that pass by a point each second is called ...

• wavelength

• pitch

• frequency

Hertz is the unit for ...

• loudness

• amplitude

• speed of a wave

• frequency

Tags

NGSS.MS-PS4-1

What is frequency?

• the number of vibrations per second

• how high or low a sound is

• the loudness or softness of a sound

• the back and forth movement of matter

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which waveform has the lowest frequency?

• (a)

• (b)

• (c)

• (d)

• (e)

Tags

NGSS.MS-PS4-1

What does it mean when a sound wave has a high frequency?

• The sound is very loud.

• The sound is very soft.

• The sound has a high pitch.

• The sound has a low pitch.

What is the primary factor that determines the pitch of a sound?

• Amplitude

• Frequency

• Speed

• Wavelength

Which unit is used to measure the frequency of sound?

• Decibel

• Hertz

• Pascal

• Watt

What happens to the pitch of a sound when the frequency increases?

• It decreases

• It increases

• It stays the same

• It becomes inaudible

What happens to the pitch of a sound when the frequency decreases?

• The pitch gets higher.

• The pitch gets lower.

• The pitch stays the same.

• The sound becomes louder.

What does a higher frequency in a sound wave indicate?

• Lower pitch

• Higher pitch

• Lower volume

• Higher volume