Waves Test Review

Front

What is a wave?

Back

A wave is a disturbance that transfers energy from one place to another without transferring matter.

Front

What are the two main types of waves?

Back

Mechanical waves and 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

Which medium do sound waves move the slowest through?

Back

Gas.

Front

What is the speed of sound in air compared to water?

Back

Sound travels faster in water than in air.

Front

What is reflection in terms of waves?

Back

Reflection is when a wave bounces back after hitting a barrier.

Front

What is refraction?

Back

Refraction is the bending of waves as they pass from one medium to another.

Front

What does it mean to transmit a wave?

Back

To transmit a wave means to pass it from one place to another or through an object.

Front

How do digital signals differ from analog signals?

Back

Digital signals use discrete values (1s and 0s) and are less affected by noise.