Flashcard on Sound

Front

What is sound?

Back

Sound is a type of energy made by vibrations that travel through a medium such as air, water, or solids.

Front

Through which medium does sound travel the fastest?

Back

Sound travels fastest through solids.

Front

How is sound produced?

Back

Sound is produced from vibrations that disturb the surrounding molecules.

Front

What type of energy transfer occurs when vibrations transfer energy?

Back

The energy transfer created by vibrations is called sound.

Front

True or False: Vibrating vocal cords create sound energy when a person speaks.

Back

True.

Front

Can sound travel through a vacuum?

Back

No, sound cannot travel through a vacuum because there are no molecules to carry the vibrations.

Front

What is a medium in the context of sound?

Back

A medium is a substance (solid, liquid, or gas) through which sound waves can travel.

Front

What happens to sound as it travels through different mediums?

Back

Sound travels at different speeds depending on the medium; it travels fastest in solids, slower in liquids, and slowest in gases.

Front

What is the relationship between vibration and sound?

Back

Vibration is the source of sound; when an object vibrates, it creates sound waves.

Front

What is an example of sound energy?

Back

An example of sound energy is the noise made by a musical instrument when it is played.