ELECTROMAGNETIC WAVES
by Talang Rioteta
1. Also called a transverse wave that consist together with ELECTRIC and MAGNETIC field.
1.1. terms of the force per charge on a stationary charge
1.2. ELECTRIC FIELD
1.2.1. MAGNETIC FIELD
1.2.1.1. terms of the force per charge on a moving charge
2. VISIBLE LIGHT – this is the only kind of EM Spectrum that visible in human eye.
2.1. RADIO WAVE – have the longest wavelength,lowest energy and frequency in EM spectrum.
2.2. GAMMA RAY – has the lowest wavelength,highest energy and high frequency in EM spectrum.
3. It can travel through a vacuum
3.1. Transfer energy from one place to another
3.2. It has 7 types of EM Spectrum
3.2.1. R A D I O W A V E
3.2.2. M I C R O W A V E
3.2.3. I N F R A R E D
3.2.4. V I S I B L E L I G H T
3.2.5. U L T R A V I O L E T
3.2.6. X - R A Y
3.2.7. G A M M A R A Y
4. 3 BASIC PROPERTIES OF ELECTROMAGNETIC WAVES
4.1. S P E E D
4.1.1. All electromagnetic radiation travels at the same speed,the speed of light 3.0×10⁸ meters per second through a vacuum.
4.2. W A V E L E N G T H
4.2.1. The distance between two successive,the crest or trough of a wave.
4.3. F R E Q U E N C Y
4.3.1. The number of waves that pass a fixed point in a given amount of time.
5. SYMBOL OF PROPERTIES IN EM WAVES
5.1. W A V E L E N G T H
5.1.1. λ (lambda)
5.2. F R E Q U E N C Y
5.2.1. f
5.3. E N E R G Y
5.3.1. E
5.4. their SI UNIT:
5.4.1. WAVELENGTH (m,meters)
5.4.2. FREQUENCY (Hertz,Hz,MHz,KHz)
5.4.3. ENERGY (electron volts,eV)
6. EM waves is helpful in our everyday needs.
6.1. it gives electricity
6.2. it produce lights
6.2.1. it helps in gadgets and appliances we use