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