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15 Cards in this Set
- Front
- Back
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Transverse waves |
Vibrations are at right angles to the direction of travel and energy transfer |
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Longitudinal waves |
Oscillations are along the same direction of travel and energy transfer |
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Static electricity |
Electricity that gets collected on the surface of something and does not flow as a current |
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Current electricity |
The movement of charge through an electric circuit |
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Aplitude |
Loudness...the greater the amplitude the louder the sound |
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Frequency |
The greater the frequency the higher the pitch Numbef of waves produced by a source each second. Measured in hertz (Hz) |
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Wavelength |
Distance between a point on one wave and the same point on the next wave. Wave speed= frequency × wavelength |
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Conductors |
Materials that allow flow of electrons on their surfaces. E.g- copper..iron platinum |
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Insulators |
Materials that do not allow electrons to flow through them e.g- plastic rubber wool |
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Compression |
Region in a longitudinal wave where the particles are closest together |
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Rarefaction |
Region in the longitudinal wave where the particles are furthest apart |
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Resistance |
How easily electrons can flow through a conductor |
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Component |
Anything in an electrical circuit is called a component |
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Ohms law |
V= I × R |
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Measuring units |
Voltage...volts Current....amperes amps A Resistance ohms Frequency....hertz Wavelength....metres |
