Simulasi PAS C4 2023/2024

What do sound waves travel slowest through?

• Air

• Metal

• Water

• Solids

What can you say about the pitch when an object vibrates fast?

• It is low

• It is high

• It is soft

• It is slow

How does sound travel fastest?

• Through a solid

• Through the sky

• Through the air

• On a boat

What is sound caused by?

• Molecules

• Vibrations

• People

• Space

Sounds travels slowest through...

• space
• solids/metals
• gas
• liquids

The higher the_______ , the higher the ________ .

• frequency, pitch
• frequency, volume
• sound, pitch
• wavelength, decibels

A guitar makes sound by

• its strings vibrating

• the air blowing through it

• the wood sound waves

• the people singing

1. The drum is hit.

2. The drum sends vibrations as sound waves.

3. The ear drum vibrates, activating the hammer, anvil and stirrup.

4. The cochlea sends the message to the auditory nerve.

5. The brain hears the sound of the drum.

• 1 and 2

• 1, 2 and 3

• 1, 2, 3 and 4

• 1, 2, 3, 4 and 5

What part of the ear helps with balance?

• anvil

• stirrup

• ear drum

• cochlea

The range of human hearing.

• 20 Hz - 20, 0000 Hz
• 200 Hz - 2000 Hz
• 20 Hz - 2000 Hz
• 200 Hz - 20,000 Hz