ScienceAges 4-6

Sound, pitch & vibrations

Explore how vibrations produce sound waves, how pitch and volume change, and how sound travels through media. Review suitability for your learners before teaching.

New variation Try interactive challenge Browse templates

Age band:Ages 4-6 Ages 7-9

Choose “Save as PDF” to keep a copy. Use your browser’s paper setting for A4 or Letter.

Worksheet StudioPractice pack · Ages 4-6

Sound, pitch & vibrations

Take your time. Show your thinking.

1. What unit is used in science to measure the frequency of a sound wave (the number of vibrations per second): hertz (Hz) or newtons (N)?
Amplitude (Loudness) · Frequency (Pitch)
2. Why are cinema walls and recording studios lined with soft foam, curtains and carpets: soft, porous materials absorb sound waves to prevent echoes, or soft foam makes sounds louder?
Amplitude (Loudness) · Frequency (Pitch)
3. What word describes how high or low a musical note sounds (such as a high whistle vs a low bass drum): pitch or volume?
Amplitude (Loudness) · Frequency (Pitch)
4. If an object vibrates faster (with a higher frequency, more vibrations per second), what happens to the pitch of the sound: the pitch gets higher, or the pitch gets lower?
Amplitude (Loudness) · Frequency (Pitch)
5. How do bats and dolphins use echolocation (sonar) to find prey in the dark or deep water: they emit high-pitched clicks and time how long the echoes take to bounce back, or they use magnets?
Amplitude (Loudness) · Frequency (Pitch)
6. If you hit a drum harder so the drum skin vibrates with a larger amplitude, what happens to the sound: the sound gets louder (higher volume), or the pitch changes into a flute?
Amplitude (Loudness) · Frequency (Pitch)
7. Why does a sound become quieter the further away you move from the source: the sound energy spreads out over a larger and larger sphere of air, or the pitch drops to zero?
Amplitude (Loudness) · Frequency (Pitch)
8. What unit is used on a sound-level meter to measure the loudness (intensity level) of a sound: decibels (dB) or degrees Celsius (°C)?
Amplitude (Loudness) · Frequency (Pitch)
9. When you speak or sing and gently rest your fingers on the front of your throat, what do you feel vibrating inside your voice box (larynx): your vocal cords, or your collarbone?
Amplitude (Loudness) · Frequency (Pitch)
10. What is an echo: a sound wave that bounces (reflects) off a hard surface like a cliff or wall and returns to your ears, or a brand-new sound made by the rocks?
Amplitude (Loudness) · Frequency (Pitch)
11. How are all sounds produced: by objects vibrating back and forth, or by objects standing completely still?
Amplitude (Loudness) · Frequency (Pitch)
12. On a xylophone or panpipe, which bar or pipe produces the HIGHEST pitch when struck: the shortest bar/pipe (which vibrates fastest), or the longest bar/pipe?
Amplitude (Loudness) · Frequency (Pitch)

12 questions · Seed 48 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 4-6

Sound, pitch & vibrations

Answers and reasoning. Review before teaching.

1. What unit is used in science to measure the frequency of a sound wave (the number of vibrations per second): hertz (Hz) or newtons (N)?
Hertz (Hz)
1 hertz (1 Hz) equals 1 complete vibration (cycle) per second.
2. Why are cinema walls and recording studios lined with soft foam, curtains and carpets: soft, porous materials absorb sound waves to prevent echoes, or soft foam makes sounds louder?
Soft, porous materials absorb sound waves to prevent echoes
Soft materials trap air and convert sound energy into tiny amounts of heat, reducing reverberation.
3. What word describes how high or low a musical note sounds (such as a high whistle vs a low bass drum): pitch or volume?
Pitch
Pitch is how high or low a sound is and depends on the frequency of vibration.
4. If an object vibrates faster (with a higher frequency, more vibrations per second), what happens to the pitch of the sound: the pitch gets higher, or the pitch gets lower?
The pitch gets higher
Higher frequency vibrations produce a higher-pitched sound.
5. How do bats and dolphins use echolocation (sonar) to find prey in the dark or deep water: they emit high-pitched clicks and time how long the echoes take to bounce back, or they use magnets?
They emit high-pitched clicks and time how long the echoes take to bounce back
The time delay and direction of returning echoes reveal the distance and location of objects.
6. If you hit a drum harder so the drum skin vibrates with a larger amplitude, what happens to the sound: the sound gets louder (higher volume), or the pitch changes into a flute?
The sound gets louder (higher volume)
Larger amplitude vibrations carry more energy and produce a louder sound.
7. Why does a sound become quieter the further away you move from the source: the sound energy spreads out over a larger and larger sphere of air, or the pitch drops to zero?
The sound energy spreads out over a larger and larger sphere of air
As distance from the source increases, the wave energy is spread over a bigger area, so amplitude decreases.
8. What unit is used on a sound-level meter to measure the loudness (intensity level) of a sound: decibels (dB) or degrees Celsius (°C)?
Decibels (dB)
Sound intensity levels are measured on the decibel (dB) scale.
9. When you speak or sing and gently rest your fingers on the front of your throat, what do you feel vibrating inside your voice box (larynx): your vocal cords, or your collarbone?
Your vocal cords
Air from the lungs passes between the vocal cords in the larynx, making them vibrate to produce your voice.
10. What is an echo: a sound wave that bounces (reflects) off a hard surface like a cliff or wall and returns to your ears, or a brand-new sound made by the rocks?
A sound wave that bounces (reflects) off a hard surface like a cliff or wall and returns to your ears
An echo is a reflected sound wave heard a short time after the original sound.
11. How are all sounds produced: by objects vibrating back and forth, or by objects standing completely still?
By objects vibrating back and forth
Every sound source—such as a plucked guitar string, a drum skin or your vocal cords—vibrates.
12. On a xylophone or panpipe, which bar or pipe produces the HIGHEST pitch when struck: the shortest bar/pipe (which vibrates fastest), or the longest bar/pipe?
The shortest bar/pipe (which vibrates fastest)
Shorter, smaller columns or bars vibrate at a higher frequency, giving a higher pitch.

12 questions · Seed 48 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 4-6

Sound, pitch & vibrations

Take your time. Show your thinking.

1. What unit is used in science to measure the frequency of a sound wave (the number of vibrations per second): hertz (Hz) or newtons (N)?
Amplitude (Loudness) · Frequency (Pitch)
2. Why are cinema walls and recording studios lined with soft foam, curtains and carpets: soft, porous materials absorb sound waves to prevent echoes, or soft foam makes sounds louder?
Amplitude (Loudness) · Frequency (Pitch)
3. What word describes how high or low a musical note sounds (such as a high whistle vs a low bass drum): pitch or volume?
Amplitude (Loudness) · Frequency (Pitch)
4. If an object vibrates faster (with a higher frequency, more vibrations per second), what happens to the pitch of the sound: the pitch gets higher, or the pitch gets lower?
Amplitude (Loudness) · Frequency (Pitch)
5. How do bats and dolphins use echolocation (sonar) to find prey in the dark or deep water: they emit high-pitched clicks and time how long the echoes take to bounce back, or they use magnets?
Amplitude (Loudness) · Frequency (Pitch)
6. If you hit a drum harder so the drum skin vibrates with a larger amplitude, what happens to the sound: the sound gets louder (higher volume), or the pitch changes into a flute?
Amplitude (Loudness) · Frequency (Pitch)
7. Why does a sound become quieter the further away you move from the source: the sound energy spreads out over a larger and larger sphere of air, or the pitch drops to zero?
Amplitude (Loudness) · Frequency (Pitch)
8. What unit is used on a sound-level meter to measure the loudness (intensity level) of a sound: decibels (dB) or degrees Celsius (°C)?
Amplitude (Loudness) · Frequency (Pitch)
9. When you speak or sing and gently rest your fingers on the front of your throat, what do you feel vibrating inside your voice box (larynx): your vocal cords, or your collarbone?
Amplitude (Loudness) · Frequency (Pitch)
10. What is an echo: a sound wave that bounces (reflects) off a hard surface like a cliff or wall and returns to your ears, or a brand-new sound made by the rocks?
Amplitude (Loudness) · Frequency (Pitch)
11. How are all sounds produced: by objects vibrating back and forth, or by objects standing completely still?
Amplitude (Loudness) · Frequency (Pitch)
12. On a xylophone or panpipe, which bar or pipe produces the HIGHEST pitch when struck: the shortest bar/pipe (which vibrates fastest), or the longest bar/pipe?
Amplitude (Loudness) · Frequency (Pitch)

12 questions · Seed 48 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 4-6

Sound, pitch & vibrations

Answers and reasoning. Review before teaching.

1. What unit is used in science to measure the frequency of a sound wave (the number of vibrations per second): hertz (Hz) or newtons (N)?
Hertz (Hz)
1 hertz (1 Hz) equals 1 complete vibration (cycle) per second.
2. Why are cinema walls and recording studios lined with soft foam, curtains and carpets: soft, porous materials absorb sound waves to prevent echoes, or soft foam makes sounds louder?
Soft, porous materials absorb sound waves to prevent echoes
Soft materials trap air and convert sound energy into tiny amounts of heat, reducing reverberation.
3. What word describes how high or low a musical note sounds (such as a high whistle vs a low bass drum): pitch or volume?
Pitch
Pitch is how high or low a sound is and depends on the frequency of vibration.
4. If an object vibrates faster (with a higher frequency, more vibrations per second), what happens to the pitch of the sound: the pitch gets higher, or the pitch gets lower?
The pitch gets higher
Higher frequency vibrations produce a higher-pitched sound.
5. How do bats and dolphins use echolocation (sonar) to find prey in the dark or deep water: they emit high-pitched clicks and time how long the echoes take to bounce back, or they use magnets?
They emit high-pitched clicks and time how long the echoes take to bounce back
The time delay and direction of returning echoes reveal the distance and location of objects.
6. If you hit a drum harder so the drum skin vibrates with a larger amplitude, what happens to the sound: the sound gets louder (higher volume), or the pitch changes into a flute?
The sound gets louder (higher volume)
Larger amplitude vibrations carry more energy and produce a louder sound.
7. Why does a sound become quieter the further away you move from the source: the sound energy spreads out over a larger and larger sphere of air, or the pitch drops to zero?
The sound energy spreads out over a larger and larger sphere of air
As distance from the source increases, the wave energy is spread over a bigger area, so amplitude decreases.
8. What unit is used on a sound-level meter to measure the loudness (intensity level) of a sound: decibels (dB) or degrees Celsius (°C)?
Decibels (dB)
Sound intensity levels are measured on the decibel (dB) scale.
9. When you speak or sing and gently rest your fingers on the front of your throat, what do you feel vibrating inside your voice box (larynx): your vocal cords, or your collarbone?
Your vocal cords
Air from the lungs passes between the vocal cords in the larynx, making them vibrate to produce your voice.
10. What is an echo: a sound wave that bounces (reflects) off a hard surface like a cliff or wall and returns to your ears, or a brand-new sound made by the rocks?
A sound wave that bounces (reflects) off a hard surface like a cliff or wall and returns to your ears
An echo is a reflected sound wave heard a short time after the original sound.
11. How are all sounds produced: by objects vibrating back and forth, or by objects standing completely still?
By objects vibrating back and forth
Every sound source—such as a plucked guitar string, a drum skin or your vocal cords—vibrates.
12. On a xylophone or panpipe, which bar or pipe produces the HIGHEST pitch when struck: the shortest bar/pipe (which vibrates fastest), or the longest bar/pipe?
The shortest bar/pipe (which vibrates fastest)
Shorter, smaller columns or bars vibrate at a higher frequency, giving a higher pitch.

12 questions · Seed 48 · Age guidance, not curriculum certification