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23 Cards in this Set
- Front
- Back
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Ac generator |
Used to generate alternate current |
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Absolute current |
The temperature of which particles have no kinetic energy |
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Acceleration |
The rate of change of an object’s velocity |
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Ammeter |
Meter to measuring current |
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Analogue signal |
Signal which varies continuously in frequency and amplitude |
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Angle of incidence |
Angle between the incident ray and the normal drawn |
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Background radiation |
The radiation from environment which we are exposed |
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Black hole |
The final stage in the life cycle of star.strong gravity that light cannot escape after explosion |
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Bonds |
Forces between particles |
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Convection current |
Transfer of thermal energy by the motion of fluid |
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Conventional current |
The direction of positive charges would flow in a complete circuit |
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Converging lens |
Lens that causes rays of light parallel to axis to converge at the principal focus -virtual -upright -magnified |
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Count rate |
The number of decaying radioactive atoms detected each seconds |
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Crest |
Highest point of the wave |
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Current voltage characteristics |
Vertical y-axis current Horizontal x-axis voltage |
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Diffraction |
When a wave spread out after traveling through a gap or past and edge of a object |
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Diode |
Allow electricity to only flow on one direction |
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Direct current D.C current |
Electric current that flows in the same direction |
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Diverging lens |
Lens that causes rays of light parallel to the axis of diverge from principal focus |
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Electric field |
A region of space in which an electric charge will experience q force |
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Hertzs |
Unit for frequency 1Hz = wave per sec |
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Interstellar cloud |
A cloud of gas and dust particles that occupies the space between the stars |
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Red shifts |
Wavelength increases due to the galaxies moving away from earth |
