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Science > Physical processes > Changing sounds - Quiz

Changing sounds

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1. Which of these statements is FALSE?

Whenever a sound is made, something vibrates

The pitch of a sound means how high or low the sound is

Sound can only travel through air, not through solids or liquids

2. Evie hits a cymbal to make a loud sound. She then holds the edge of the cymbal tightly between her fingers. What happens to the sound?

It stops

It gets louder

It becomes higher in pitch

3. The harder you hit a drum ...

the louder the sound

the higher the pitch of the sound

the lower the pitch of the sound

4. As you tighten a drum skin, the sound made when you hit it ...

gets lower in pitch

gets higher in pitch

stays the same

5. As you fill a bottle with water, the sound made when you BLOW over the top of it ...

gets lower in pitch

gets higher in pitch

stays the same

6. As you fill a bottle with water, the sound you make when you TAP it ...

gets lower in pitch

gets higher in pitch

stays the same

7. An astronaut picks up a stone from the moon and throws it hard against another stone. He doesn't hear any sound. Why not?

Because your ears don't work on the moon

Because there is no air on the moon and so the sound cannot travel

Because rocks are soft and squashy on the moon

8. As you tighten a string, the sound made when you pluck it ...

gets lower in pitch

gets higher in pitch

stays the same

9. Why do people using large noisy drills often wear ear muffs?

Because they think they look nice

Because their ears are cold

Because very loud sounds can damage your ears

10. What would be a good material to lay on a floor to muffle the sound of footsteps?

Carpet

Metal

Wood

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