# Physics Sound Quiz For 10th Grade

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| By MrsHRobinson
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MrsHRobinson
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Quizzes Created: 3 | Total Attempts: 1,873
Questions: 10 | Attempts: 986

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Physics, Junior Science, NZ, high school

• 1.

### Which sound wave has the longest wavelength?

• A.

The blue one (top)

• B.

The green one (middle)

• C.

The reddish one (bottom)

• D.

None of them

C. The reddish one (bottom)
Explanation
The bottom one only shows 1/2 a wavelength so the whole wavelength would be twice as long, much longer than those above

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• 2.

### Which sound wave has the greatest amplitude?

• A.

The bottom wave

• B.

The top wave

• C.

Both waves have the same amplitude

C. Both waves have the same amplitude
Explanation
Amplitude is the distance from the average line down the middle of the wave to the top of a crest. The greater the amplitude, the louder the noise seems to our ears

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• 3.

### Which statement describes the amplitude?

• A.

Distance from middle line (average) to top of wave (crest)

• B.

The very top point of a wave

• C.

The very bottom point of a wave

• D.

The distance between two crests

A. Distance from middle line (average) to top of wave (crest)
Explanation
The amplitude of a wave is defined as the distance from the middle line (average) to the top of the wave (crest). It represents the maximum displacement of a particle in the medium from its equilibrium position when a wave passes through it. The greater the amplitude, the more energy the wave carries.

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• 4.

### Which wave has the shortest wavelength?

• A.

The high frequency wave (top)

• B.

The low frequency wave (bottom)

• C.

They both have the same wavelength

A. The high frequency wave (top)
Explanation
the greater the frequency (higher), the smaller the wavelength

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• 5.

### Select all the statements that are TRUE

• A.

The top sound wave has a longer wavelength than the bottom

• B.

The bottom sound wave would be louder than the top one

• C.

The note (pitch) of the bottom wave would be higher than the top one

• D.

Both waves have the same frequency

A. The top sound wave has a longer wavelength than the bottom
C. The note (pitch) of the bottom wave would be higher than the top one
Explanation
The wavelength of a sound wave is inversely proportional to its frequency, so if the top sound wave has a longer wavelength than the bottom one, it means that the bottom wave has a higher frequency and therefore a higher pitch. The statement about the note (pitch) of the bottom wave being higher than the top one is true.

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• 6.

### The word 'pitch' refers to how high or low a note sounds

• A.

True

• B.

False

A. True
Explanation
the higher the frequency, the higher note we hear (higher pitched)

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• 7.

### We can hear sound waves coming out of a radio, but 'radio waves' are actually part of the electromagnetic spectrum that includes visible light.

• A.

True

• B.

False

A. True
Explanation
This is why radio waves can travel through space like light - they don't need air particles like sound waves do

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• 8.

### Tick all the ones that are TRUE

• A.

Sound waves can travel through a vacuum (space)

• B.

• C.

Radio waves are actually part of the electromagnetic spectrum (like light)

• D.

Sound can only travel through particles like air, rocks or water

C. Radio waves are actually part of the electromagnetic spectrum (like light)
D. Sound can only travel through particles like air, rocks or water
Explanation
The statement "radio waves are actually part of the electromagnetic spectrum (like light)" is true because radio waves are a type of electromagnetic radiation, just like light. The statement "sound can only travel through particles like air, rocks or water" is also true because sound waves require a medium to travel through, such as air, water, or solid objects. Sound cannot travel through a vacuum or empty space.

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• 9.

### How do we hear sounds?

• A.

Air particles hit our eardrums

• B.

The energy of the wave penetrates our brain

• C.

The eardrum stays completely still

A. Air particles hit our eardrums
Explanation
the vibration of the air particles is transferred to the eardrum, which transfers it to other parts of the ear, including tiny hairs that send electrical messages to the brain saying 'this is a high sound' or 'this is the note c minor'

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