Some Review Questions- Electricity
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Electricity is | a form of energy that, when in motion exhibits magnetic, chemical or thermal effects
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| Two types of electric current: | Direct Current & Alternating Current
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| Volt measures | Pressure/Force
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| Amp measures | Strength of electric current
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| Milliampere measures | One thousandth of an amp
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| Ohm measures | Resistance of an electric current
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| Watt measures | Amount of energy used in one second
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| Kilowatt measures | 1,000 watts
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| Prevents excessive current from passing through the circuit | Fuse
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| A switch that automatically interrupts/shuts off an electric current at the first indication of overload | Circuit Breaker
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| The process of introducing water-soluble products into skin with the use of electric current | Iontophoresis
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| Forces acidic substances into deeper tissues | Cataphoresis
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| Visible light makes up _____% of natural sunlight | 35
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| Ultra violet rays make up ____% of natural sunlight | 5
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| ________ rays make up 60% of natural sunlight | Infrared
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| How are infrared lamps used? | For hair/skin treatments at a distance of at least 30 inches (76cm) with an exposure of 5 minutes.
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| Negative or positive pole of an electric current | Polarity
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| Process used to soften and emulsify grease deposits and blackheads in the hair follicles | Desincrustation
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| Wavelength | Distance between successive peaks of electromagnetic waves
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Created by:
jaskam22
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