Sound Waves Quiz

In which direction do particles vibrate in a sound wave?

• Perpendicular to wave travel

• Parallel to wave travel

• Diagonal to wave travel

• Circular to wave travel

What is the term used to describe the region in a sound wave where particles are close together?

• Rarefaction

• Crest

• Compression

• Trough

What is the human hearing range in Hertz?

• 20 Hz to 20,000 Hz

• 10 Hz to 15,000 Hz

• 30 Hz to 25,000 Hz

• 50 Hz to 30,000 Hz

What is sound measured in?

• Decibels

• Lumens

• Joules

• Watts

What happens when a vibrating sound wave encounters air particles?

• It stops moving

• It passes kinetic energy to nearby air molecules

• It loses all energy

• It changes direction

When does the reflection of sound occur between two mediums?

• When the temperatures are the same.

• When the densities are very different.

• When the colors are similar.

• When the shapes are identical.

How does the density of particles affect sound reflection?

• Higher density always absorbs sound.

• Similar densities enhance sound transmission.

• Different densities cause sound reflection.

• Lower density always reflects sound.

What is the velocity of sound in iron?

• 331.6 m/s

• 1440 m/s

• 5130 m/s

• 6000 m/s

What is echolocation used for?

• Medical imaging

• Determining surroundings in darkness

• Weather forecasting

• Voice recognition

Which animals are known to use echolocation?

• Dogs and cats

• Bats and dolphins

• Birds and fish

• Elephants and lions