science 10

1. ELECTROMAGNETISM

2. Practical
Applications of
EM Waves

3. MICROWAVES
 Have smaller
wavelengths than
radio waves.

4. Applications
of Microwaves
Satellite
Communications
Radar
Cellphone Communication

5. Satellite
Communication
 Microwaves can penetrate the
atmosphere of the earth.
 Travel around the earth at
an altitude of 35,000 km
above the equator.

6. Cellphone
Communication
 Is a radio transmitter and
receiver that uses
microwaves.

7. RADAR
 Radio Detection and Ranging
 Consists of an antenna,
transmitter and receiver.
 Is widely used in scanning,
transmitting and receiving
the pulses of microwaves.

8. Effects of
Electromagnetic
Radiation

9. Electromagnetic
radiation
 is a form of energy that is
all around us and takes many
forms, such as radio waves,
microwaves, X-rays and gamma
rays, but visible light is
only a small portion of the
EM spectrum, which contains a

10. Effects of
Electromagnetic
Radiation
 Radio waves
 Microwaves
 Infrared
 Visible Light
 Ultraviolet
 X-Ray
 Gamma rays

11. Effect of Radio
waves
 Damage the
DNA(genes) inside
the body.
 Can result in
canser.

12. Effect of
Microwaves
 Painful burns
 Cataracts

13. Effect of Infrared