Sound Quiz 2024

Name (first and last)

Period

• A1
• A2
• A3
• B1
• B2

A ringing bell is located in a large glass jar. When the air is removed from the jar, why can the bell be seen vibrating but not heard?

• Light waves can travel through a vacuum, but sound waves can not.
• Sound waves have a greater amplitude than light waves.
• Light waves travel slower than sound waves.
• Sound waves have a higher frequency than light waves.

A thick pillow is placed against a stereo speaker. How does the pillow affect the sound waves coming from the speaker?

• The sound waves are absorbed.
• The sound waves are increased.
• The sound waves are reflected.
• The sound waves are destroyed.

Which part of your ear is responsible for collecting sound waves?

• Inner ear
• Middle ear
• Outer ear
• Audio receptors

During a 4th of July celebration, scientists were measuring sound waves as the fireworks exploded. Which illustration indicates that the fireworks were becoming louder?

• 
• 
• 
• 

Elizabeth uses a specific type of whistle to call her dogs. The noise made by the whistle is heard by the dogs but cannot be heard by the human ear. Which statement BEST describes why humans cannot hear the sound made by the whistle?

• The speed of the sound is too fast.
• The amplitude of the sound is too low.
• The frequency of the sound is too high.
• The wavelength of the sound is too long.

The Doppler Effect is noticed in which of the following situations?

• When a car with its honking horn moves towards you and then drives away.
• When geese fly in formation, and the goose at the front is honking.
• When a drum is struck hard.
• When sound does not travel in a vacuum.

Amy is trying to get the attention of her guests at a party by tapping on a glass with a spoon. Why should she tap on an empty glass rather than a glass that has water in it?

• The empty glass has a lower frequency.
• The empty glass has a higher pitch.
• The empty glass has a lower pitch.
• The empty glass will not vibrate.

The fire alarm went off in school. Why were some students seen covering their ears as they were exiting for the fire drill?

• To increase the amount of vibrations entering the ear.
• To decrease the amount of vibrations entering the ear.
• To decrease the frequency of the sound waves entering the ear.
• To increase the frequency of the sound waves entering the ear.