Which of the following has the lowest frequency?

• A

• B

• C

• D

Answer explanation

Frequency - The number of vibrations per second.

Tags

NGSS.MS-PS4-1

Fill in the blank

a- The highness or lowness of a sound is its ___________.

• Pitch

• Volume

• Amplitude

• Frequency

Fill in the blank

b- The pitch of a sound depends on the _____________ of its wave.

• Pitch

• Volume

• Amplitude

• Frequency

Fill in the blank

c- A short and thin string in a musical instrument produces a sound with a ______ frequency and a high _________ .

• Pitch

• high

• Amplitude

An aircraft marshaller is a person who guides airplanes as they park. The picture below shows an aircraft marshaller.

a- How can you describe the pitch and volume of the sound produced by an aircraft? Choose the answer.

• Soft volume high pitch

• Loud volume high pitch

• Loud volume low pitch

• Soft volume low pitch

An aircraft marshaller is a person who guides airplanes as they park. The picture below shows an aircraft marshaller.

b- Why does the aircraft marshaller wear headsets on his ears? Choose the answer.

• To protect his ears

• To communicate with his friends

• To listen to music

Tags

NGSS.MS-LS1-8

A guitar is shown in the figure below.

a- How is sound usually produced with a guitar? Choose the answer.

• By plucking the strings

• By smashing the guitar

• By pressing on the strings

• By playing with the tuning keys

A guitar is shown in the figure below.

b- What are the factors that affect the pitch of the produced sound? Select all that apply.

• The tightness of the strings

• The length of the strings

• The thickness of the string

• Mass of the guitar

• Shape of the guitar

Tags

NGSS.MS-PS4-1

The diagram below represents a sound wave that is produced by fast vibrations.

a-What is the number of vibrations that the sound wave completes in one second called? Choose the answer.

• Frequency

• Volume

• Amplitude

• Vibration

Tags

NGSS.MS-PS4-1

The diagram below represents a sound wave that is produced by fast vibrations.

b- What can we say about the sound wave if fast vibrations produce it? Choose the answer.

• it has a high frequency

• it has a low volume

• it has a low amplitude

• it has slow vibrations

Tags

NGSS.MS-PS4-1