Sound revision

What medium does sound travel through slowest?

• solid

• gas

• liquid

• vacuum

Sound does not travel in space because_________________.

• space is too far away.

• space is the final frontier

• there is no matter in space.

• space has planets.

Which of these sound waves has the highest frequency?

• 
• 
• 

The speed of a sound wave depends on___________.

• the frequency

• timbre

• the amplitude

• properties of the medium through which it moves

If the distance represented by the letter A were increased, how would it change the way the sound was heard?

• The pitch would be higher.

• The sound would be softer.

• The pitch would be lower.

• The sound would be louder.

A sound with a high pitch would have____________.

• a low frequency

• a high frequency

• a low amplitude

• a high amplitude

Which of the following does not produce sound?

• A hammer hitting the rubber .

• Explosion in outer space.

• A bell ringing in the water.

• Whispering into someone’s ear.

Jackson sees a lightning strikes and hears the thunder 5 seconds later. How far was the lightning? (In 1 second, sound travels 330 m in air.)

• 330 m

• 5 m

• 1650 m

• 66 m

Who shouts louder?

• A

• B

• The loudness is the same.

Sound with frequencies between 20 Hz and 20 000 Hz are known as_______________.

• ultrasound

• infrasound

• audible range