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Science Quiz - Sound 01 (Questions)

Sound is made when objects vibrate. These vibrations travel through solids, liquids, or gases as waves, allowing us to hear different pitches and volumes.

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Fascinating Fact:

Whales and elephants use very low-pitched sounds, called infrasound, to communicate over long distances.

In KS3 Science, pupils explore how sound waves are produced, how they travel through different materials, and how our ears detect them as hearing.

Key Terms

Vibration: A rapid back-and-forth movement that produces sound waves.
Frequency: The number of sound wave vibrations per second, measured in hertz (Hz).
Amplitude: The size of the vibration, which affects how loud a sound is.

Frequently Asked Questions (Click to see answers)

How does sound travel through solids, liquids, and gases?

Sound travels fastest through solids because particles are close together, slower in liquids, and slowest in gases where particles are far apart.

What is the range of human hearing?

Humans can usually hear sounds between 20 hertz and 20,000 hertz. Sounds below or above this range are called infrasound and ultrasound.

Why does sound not travel in space?

Sound cannot travel in space because there are no particles to carry the vibrations. Sound needs a medium like air, water, or solids to move.

Try These Related Quizzes

1.

Sounds cannot travel through .......

[ ]	A gas
[ ]	A liquid
[ ]	A solid
[ ]	A vacuum

2.

A high frequency of vibrations produces .......

[ ]	High pitched sounds
[ ]	Loud sounds
[ ]	Low pitched sounds
[ ]	Quiet sounds

3.

Frequency is measured in .......

[ ]	Hertz
[ ]	Metres
[ ]	Ohms
[ ]	Volts

4.

A large amplitude of vibration produces .......

[ ]	High pitched sound
[ ]	Loud sounds
[ ]	Low pitched sounds
[ ]	Quiet sounds

5.

Sounds which have a very high frequency are called .......

[ ]	Decibels
[ ]	Infra sound
[ ]	Resonance
[ ]	Ultrasound

6.

How will a thin string on a violin vibrate compared to a thick string?

[ ]	It will vibrate with a greater amplitude
[ ]	It will vibrate with a greater frequency
[ ]	It will vibrate with a smaller amplitude
[ ]	It will vibrate with a smaller frequency

7.

How will tightening a guitar string change its vibration?

[ ]	It will vibrate with a greater amplitude
[ ]	It will vibrate with a greater frequency
[ ]	It will vibrate with a smaller amplitude
[ ]	It will vibrate with a smaller frequency

8.

How does decreasing the length of a guitar string change its vibration?

[ ]	Changes the amplitude
[ ]	Decreases frequency
[ ]	Decreases pitch
[ ]	Increases frequency

9.

A loudspeaker changes .......

[ ]	Electrical energy to sound energy
[ ]	Potential energy to sound energy
[ ]	Sound energy to electrical energy
[ ]	Sound energy to potential energy

10.

Older people can't hear .......

[ ]	Any better or worse than younger people
[ ]	High pitched sounds as well as younger people
[ ]	Low frequency sounds as well as younger people
[ ]	Low pitched sounds as well as younger people

You can find more about this topic by visiting BBC Bitesize – Sound Waves

Science Quiz - Sound 01 (Answers)

1.

Sounds cannot travel through .......

[ ]	A gas
[ ]	A liquid
[ ]	A solid
[x]	A vacuum

A vacuum has no particles so there is nothing to vibrate

2.

A high frequency of vibrations produces .......

[x]	High pitched sounds
[ ]	Loud sounds
[ ]	Low pitched sounds
[ ]	Quiet sounds

Bats use very high pitched sounds to help them navigate

3.

Frequency is measured in .......

[x]	Hertz
[ ]	Metres
[ ]	Ohms
[ ]	Volts

Heinrich Hertz was a German scientist who carried out a lot of research into electromagnetic waves

4.

A large amplitude of vibration produces .......

[ ]	High pitched sound
[x]	Loud sounds
[ ]	Low pitched sounds
[ ]	Quiet sounds

A guitarist can make their guitar sound louder by plucking or strumming it harder to increase the amplitude of vibration of the string. In an orchestra, the stringed instruments are played using a bow. The players can bow harder to increase the amplitude and therefore make a louder sound

5.

Sounds which have a very high frequency are called .......

[ ]	Decibels
[ ]	Infra sound
[ ]	Resonance
[x]	Ultrasound

In the ocean, sperm whales use sound to stun or kill their prey

6.

How will a thin string on a violin vibrate compared to a thick string?

[ ]	It will vibrate with a greater amplitude
[x]	It will vibrate with a greater frequency
[ ]	It will vibrate with a smaller amplitude
[ ]	It will vibrate with a smaller frequency

It has less mass and can therefore vibrate faster

7.

How will tightening a guitar string change its vibration?

[ ]	It will vibrate with a greater amplitude
[x]	It will vibrate with a greater frequency
[ ]	It will vibrate with a smaller amplitude
[ ]	It will vibrate with a smaller frequency

The same applies to any string instrument

8.

How does decreasing the length of a guitar string change its vibration?

[ ]	Changes the amplitude
[ ]	Decreases frequency
[ ]	Decreases pitch
[x]	Increases frequency

Guitar players shorten strings by holding them against the frets on the fretboard (the guitar's neck)

9.

A loudspeaker changes .......

[x]	Electrical energy to sound energy
[ ]	Potential energy to sound energy
[ ]	Sound energy to electrical energy
[ ]	Sound energy to potential energy

A cardboard cone inside the loudspeaker is vibrated to create the soundwaves

10.

Older people can't hear .......

[ ]	Any better or worse than younger people
[x]	High pitched sounds as well as younger people
[ ]	Low frequency sounds as well as younger people
[ ]	Low pitched sounds as well as younger people

This deterioration in hearing is actually said to begin as young as the age of eight!