1. Electromagnetic Waves textbook page 214
Radiation from Space
Electromagnetic Waves
textbook page 214

2. Radiation from Space
Radiation is energy transmitted from one place to another by electromagnetic waves
1. What is radiation?
2. What are electromagneticwaves?
A wave of energy consisting of electric and magnetic fields, oscillating at right angles to each other.
link

3. can travel through a medium
Radiation from Space
Mechanical waves are caused by a disturbance or vibration in matter, whether solid, gas, liquid, or plasma.
3. What are mechanical waves?
Link 2
require a
medium
do not require a medium
transfer energy
travels through water and air
can travel through a medium
Electromagnetic
Mechanical

4. Radiation from Space Radio waves 4. electromagnetic radiation
Microwaves
Infrared radiation
Visible light
Ultraviolet radiation
X rays
Gamma rays
4. electromagnetic radiation

5. Radiation from Space Electromagnetic radiation arranged by wavelength
They differ in their
frequencies
The shorter the
wavelength the higher the
frequency
5. Electromagnetic spectrum
6. frequency
The number of wave crests that pass a point per unit of time

6. Radiation from Space All electromagnetic waves travel at 300,000 km/s
7. Speed of Light

7. Credits