Electromagnetic Spectrum

Question 1

The electromagnetic spectrum can be divided into how many regions?

Answer 1

Seven Regions

1. radio wave
2. microwave
3. infrared light
4. visible light
5. ultraviolet light
6. x-ray
7. gamma ray

Question 2

These electromagnetic waves have the longest wavelengths in the electromagnetic spectrum. They are used for communication, broadcasting, and radar.

Answer 2

Radio Waves

Question 3

These electromagnetic waves are shorter than radio waves but still long compared to visible light. They are absorbed by water molecules, making them ideal for heating.

Answer 3

Microwaves

Question 4

________ radiation is sometimes called “heat radiation” because it is felt as heat and is emitted by warm objects. It lies just below visible light in the spectrum.

Answer 4

Infrared

Question 5

These elctromagnetic waves are in the range in the spectrum that can only be seen by the human eye.

Answer 5

Visible Light

Each color has different wavelengths. Red, Orange, Yellow, Green, Blue, Indigo, Violet

Question 6

These electromagnetic waves have higher energy than visible light. It comes from the sun and is responsible for causing sunburns.

Answer 6

Ultraviolet

Question 7

These electromagnetic waves are high-energy waves that can penetrate (pass) through soft tissue but are absorbed by solid materials like bones.

Answer 7

X-rays

Question 8

These elelectro magnetic waves have the highest frequencies (energy) of all regions in the spectrum. They are produced during nuclear reactions and can be very harmful.

Answer 8

Gamma Rays