Electromagnetic Sprectrum Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

What is the electromagnetic spectrum?

A

The electromagnetic spectrum is the range of all types of electromagnetic radiation.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

List the types of electromagnetic radiation in order of increasing wavelength.

A

Gamma rays, X-rays, ultraviolet, visible light, infrared, microwaves, radio waves.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

True or False: Visible light is the only part of the electromagnetic spectrum that can be seen by the human eye.

A

True.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What type of electromagnetic radiation is used in medical imaging?

A

X-rays.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Which type of electromagnetic radiation has the longest wavelength?

A

Radio waves.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

True or False: Infrared radiation is primarily associated with heat.

A

True.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the primary use of microwaves?

A

Heating food and communication technologies.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the difference between ultraviolet light and visible light?

A

Ultraviolet light has shorter wavelengths than visible light and can cause skin damage.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Which part of the electromagnetic spectrum is used for satellite communication?

A

Microwaves.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What type of radiation is primarily responsible for sunburn?

A

Ultraviolet radiation.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

True or False: All electromagnetic waves travel at the same speed in a vacuum.

A

True.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the primary characteristic that distinguishes different types of electromagnetic radiation?

A

Wavelength and frequency.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Which type of radiation is used in remote controls?

A

Infrared radiation.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Fill in the blank: The visible spectrum is made up of the colors _____, _____, _____, _____, _____, _____, and _____.

A

red, orange, yellow, green, blue, indigo, violet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the role of ozone in relation to ultraviolet radiation?

A

Ozone absorbs most of the sun’s harmful ultraviolet radiation.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

True or False: Higher frequency electromagnetic waves carry more energy.

A

True.

17
Q

What type of electromagnetic radiation is used in night vision technology?

A

Infrared radiation.

18
Q

Which type of electromagnetic radiation is utilized for cooking food?

A

Microwaves.

19
Q

What happens to the wavelength of electromagnetic radiation as the frequency increases?

A

The wavelength decreases.

20
Q

Fill in the blank: The electromagnetic spectrum is divided into regions based on _____ and _____.

A

wavelength; frequency

21
Q

What is the primary application of X-rays in healthcare?

A

To view the inside of the body for diagnostic purposes.

22
Q

True or False: Electromagnetic waves require a medium to travel through.

A

False.

23
Q

What is total internal reflection?

A

When light is completely reflected back at a boundary between two medium

24
Q

What determines the colour of visible light waves?

A

The wavelength and frequency

25
Q

What colour has the highest frequency?

A

Blue

26
Q

What colour has the largest wavelength ?

A

Red

27
Q

How does a red filter work

A

It absorbs The wavelengths of light other than those in the red spectrum

28
Q

What type of waves are electromagnetic waves ?

A

Transverse

29
Q

What electromagnetic wave has the highest frequency?

A

Gamma