Making and Changing Sound

What is a source of sound?

• A place where light is produced

• A place where sound is produced

• A place where sound is absorbed

• A place where vibrations stop

How does sound travel from one place to another?

• By light waves

• By air pressure

• By vibrations

• By wind

Through which material does sound travel the fastest?

• Air

• Liquid

• Solid

• Gas

What is the purpose of soundproofing materials?

• To make sounds louder

• To stop sounds from escaping

• To prevent vibrations from reaching the ear

• To change the pitch of a sound

What is the correct unit used to measure the volume of a sound?

• DB

• dB

• db

• Db

How can you increase the pitch of a wind instrument?

• Lengthen the tube

• Shorten the tube

• Cover the holes

• Add more air pressure

Which of the following will produce a high-pitched sound?

• A large drum

• A small bell

• A big horn

• A wooden plank

What happens to the pitch of a sound when the string is tightened?

• The pitch gets higher

• The pitch gets lower

• The pitch stays the same

• The pitch disappears

What is volume?

• How high or low a sound is

• How loud or quiet a sound is

• The speed of a sound wave

• The length of a sound wave

Why does a large drum produce a lower pitch than a small bell?

• The large drum vibrates faster

• The large drum has a thicker material

• The large drum vibrates more slowly

• The large drum is closer to the ground