Electromagnetic radiation and communication

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Electromagnetic Radiation and Communication

Drag the pictures to the type of wave they use

Radio Waves

Microwaves

Infrared Radiation

Visible Light

Which type of wave is a longitudinal wave?

1

Light Wave

2

Sound Wave

3

Water wave

4

Hand Wave

Which of the following is not a type of light wave?

A

Radio waves

B

Sound waves

C

Microwaves

D

X-rays

• Frequency: The number of times a wave repeats itself in one second. Higher frequency means a higher pitch in sound.

• Infrared Radiation: A type of electromagnetic radiation that is invisible to the human eye but can be felt as heat.

• Light Wave: A type of electromagnetic wave that is visible to the human eye.

• Longitudinal Wave: A wave where the particles move back and forth in the same direction as the wave, like a sound wave.

• Microwaves: A type of electromagnetic wave used in cooking and communication, shorter than radio waves but longer than infrared radiation.

• Pitch: How high or low a sound is. It is affected by the frequency of the sound wave.

• Radio Waves: The longest type of electromagnetic wave, used for communication like radio and TV signals.

• Sound Wave: A type of wave that travels through air or another medium, allowing us to hear sounds.

• Visible Light: The part of the electromagnetic spectrum that can be seen by the human eye.

• Water Wave: A wave that travels through water, like the ripples seen on a pond.

Glossary of Waves and Sound

• Frequency: The number of times a wave repeats itself in one second. Higher frequency means a higher pitch in sound.

• Infrared Radiation: A type of electromagnetic radiation that is invisible to the human eye but can be felt as heat.

• Light Wave: A type of electromagnetic wave that is visible to the human eye.

• Longitudinal Wave: A wave where the particles move back and forth in the same direction as the wave, like a sound wave.

• Microwaves: A type of electromagnetic wave used in cooking and communication, shorter than radio waves but longer than infrared radiation.

• Pitch: How high or low a sound is. It is affected by the frequency of the sound wave.

• Radio Waves: The longest type of electromagnetic wave, used for communication like radio and TV signals.

• Sound Wave: A type of wave that travels through air or another medium, allowing us to hear sounds.

• Visible Light: The part of the electromagnetic spectrum that can be seen by the human eye.

• Water Wave: A wave that travels through water, like the ripples seen on a pond.

How does an increase in frequency affect the pitch of a sound wave?

A

The pitch becomes higher

B

The pitch remains the same

C

The pitch becomes lower

D

The pitch becomes louder