Understanding Sound

What happens to air molecules when a sound is made?

• They stop moving.

• They create tiny vibrations.

• They change color.

• They disappear.

How does the brain recognize different sounds?

• By the color of the sound waves.

• By the unique pattern of vibrations.

• By the temperature of the air.

• By the speed of light.

What determines whether a sound is high or low?

• The color of the sound waves.

• The speed of the vibrations.

• The distance from the sound source.

• The size of the sound source.

Why can't sound travel in outer space?

• There is no light in space.

• There is no medium for sound to travel through.

• Sound is too heavy to travel in space.

• Space is too cold for sound.

What is sonar technology used for?

• To navigate underwater.

• To measure temperature.

• To detect light.

• To communicate with birds.