electromagnetic spectrum Flashcards
(9 cards)
1
Q
which has the lowest frequency
A
radio waves (increases as it carries on)
2
Q
which has the longest wavelength
A
radio waves (decreases as it does carries on)
3
Q
uses of radio waves
A
- radio communications
4
Q
use and danger of microwaves
A
- use: heating foods
- danger: internal heating of body tissues
5
Q
use and danger of infra-red
A
- use: remote controllers for tv
- danger: skin burns
6
Q
use and danger of visible light
A
- use: photography
- danger: blindness
7
Q
use and danger of ultraviolet
A
- use: creating fluorescent effects
- danger: lead to skin cancer
8
Q
use and danger of x-rays
A
- use: detection of broken bones
- danger: cell mutation
9
Q
use and danger of gamma rays
A
- use: sterilising food/medical equipment
- danger: risk of cancer
