Mechanical vs. Electromagnetic Waves

Front

What is a mechanical wave?

Back

A mechanical wave is a wave that requires a medium (solid, liquid, or gas) to travel through.

Front

What is an electromagnetic wave?

Back

An electromagnetic wave is a wave that can travel through a vacuum and does not require a medium.

Front

Give an example of a mechanical wave.

Back

Sound waves are an example of mechanical waves.

Front

Give an example of an electromagnetic wave.

Back

Light waves are an example of electromagnetic waves.

Front

What is the main difference between mechanical and electromagnetic waves?

Back

Mechanical waves require a medium to travel, while electromagnetic waves do not.

Front

What is frequency in the context of waves?

Back

Frequency is the number of waves that pass a point in one second, measured in Hertz (Hz).

Front

Can electromagnetic waves travel through space?

Back

Yes, electromagnetic waves can travel through space where there is no matter.

Front

Can mechanical waves travel through a vacuum?

Back

No, mechanical waves cannot travel through a vacuum; they need a medium.

Front

What type of wave is a microwave?

Back

A microwave is an example of an electromagnetic wave.

Front

What type of wave is an x-ray?

Back

An x-ray is an example of an electromagnetic wave.