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問題一覧
1
It is a wave that is created as a result of vibrations between an electric field and magnetic field
Electromagnetic Wave
2
Electromagnetic wave are produced by?
Vibrating Charge
3
It is a disturbance in space
Wave
4
It is the highest point in a wave
Crest
5
It is the lowest point in a wave
Trough
6
It is the distance from the midpoint to the highest (or lowest) point of a wave
Amplitude
7
It is the distance between two successive identical parts of a wave
Wavelength
8
It refers to the number of waves produced in one second
Frequency
9
It refers to the extent or the limits between which vibration is possible
Range
10
EM waves travel on air, vacuum, at a constant speed of?
3x10⁸ m/s
11
The arrangement in a gradual progression from the wave of lowest frequency to highest frequency
Electromagnetic Spectrum
12
He showed how a current carrying wire behaves like a magnet
Andre Ampere
13
He formulated the principle behind electromagnetic induction
Michael Faraday
14
He showed the experimental evidence of electromagnetic waves and their link to light
Heinrich Hertz
15
He contributed in developing equations that showed the relationship of electricity and magnetism
Maxwell
16
He demonstrated the magnetic effect based on the direction of the current
Oersted
17
The process of using magnetic field to produce voltage, and in a complete circuit a current
Electromagnetic Induction
18
It is used to broadcast radio and television
Radiowaves
19
It is used in cooking radar, telephone and other signals
Microwaves
20
It transmits heat from sun fires and radiators
Infrared
21
It makes things able to be seen
Visible Light
22
It absorbed by the skin used in flourescent tubes
Ultraviolet
23
It is used to view inside of bodies and object
X-Ray
24
It is used in medicine for killing cancer cells
Gamma Rays
25
It is made of transparent material such as glass or plastic with a refractive index larger that that of air
Lenses
26
It is thicker at the center than at the edges and also called converging lens
Convex Lens
27
It is a thinner at the center than at the edges and also called diverging lens
Concave Lens
28
It converts electric energy into mechanical energy
Motor
29
A part of motor that provides rotating magnetic field and converts electrical energy into mechanical energy
Stator
30
A part of motor that fits into the station and converts electrical energy into mechanical energy
Rotor
31
A part of motor that is electric generator and its role is to convert mechanical energy to electrical
Armature