ElectroSpectrum Flashcards
1
Q
Electromagnetic wave type
A
Transverse wave
2
Q
Radio waves uses
A
- television/telephone TRANSMISSION
* Radio broadcasting
3
Q
Microwaves uses
A
- Satellite television
* Microwave oven
4
Q
Infra-red uses
A
- Remote control
* Motion sensors
5
Q
Visible light uses
A
- Optical fibres
* Telecommunications
6
Q
Ultra violet uses
A
- Sunbeds
* Causes sun burns
7
Q
X-ray uses
A
- X-ray images
* Detects internal structural problems
8
Q
Gamma ray uses
A
• Kills cancer cells
9
Q
Positive effects of electromagnetic waves
A
• Infrared wave to keep use warm
10
Q
Negative effects of electromagnetic waves
A
- Sunburns
- Skin cancer
- Damage to living cells
- Premature aging
- Shortening of lifespan
11
Q
Can electromagnetic wave travel in vacuum
A
yes yes yes yes yes. YES!!!