Use of Waves in Technology

The speed of light

The speed of sound

The speed of mechanical waves

The signal moves instantly between a limited number of values.

The signal moves gradually among an infinite number of values.

People hear sound waves coming from an orchestra.

Data are stored on computers.

The quality of copies does not decrease as more copies are made.

It is easy to copy a computer virus to a device.

Other people can access data that you don't want them to see.

The parts of devices that store data are stable.

Continuously varying

High or low

The information is received by a Wi-Fi antenna in the computer.

A demodulator translates radio waves into a digital signal that the computer can use to play the video.

The information reaches a router and is converted to radio waves.

The information in the video is sent in binary code through fiber-optic cables.

Sonar

Hand Lens

Radar

Sonar

Hand Lens

Radar

Sonar

Hand Lens

Radar

The amount of time it takes the sound waves to travel to the fish and back to the boat

The number of sound waves the ship emits

The amount of time it takes the sound waves to travel from the boat to the fish

The number of sound waves that bounce off the fish