Flashcards
Electicty
Cards in this deck (5)
- 1Electricity Key words: Charge: a property of matter. It is either positive or negative. Electrons all have a negative charge. Electron: s negatively charged particle.Coulombs: the unit for charge flow. 1C = 6.2X10 electrons
Current: a flow of charge around a circuit. It is measured in amperes also called amps. charge flow is the amount of current per second - 2—Bulb - Glows when a circuit is complete
Voltmeter - Measures the voltage produced by a power supply
Ammeter - Measures the flow of electrons in a circuit, which is known as current
Resistor - It slows down the flow of electrons in a circuit
Variable resistor - It slows down the flow of electrons in a circuit. The resistance can be changed. - 3—
- 4Name - Unit - Symbol Charge - Coulomb (C) - Q Current - Amp (A) - I Time - Second (s) - t Equation: Q = ItPotential Difference: (also called P.D. and can also be called voltage) is the energy which is transferred to component. It's the little bit of 'word done' by each coulomb of charge that goes through it.
- 5Imagine that an electron can be either full of energy, or have no energy. When they have lots of energy they can give lots of energy they can give the energy to a component. When they have no energy they can't.Name - Unit - Symbol
Potential difference - Volts (V) - V
Energy transferred - Joules (J) - E
charge - Coulombs (C) - Q
Current - Amps (A) - I
Resistance - Ohms ( ) - R
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- Year 10 science (Physics) Flashcards on Electicty , created by Aoife Warren on 03/02/2017.
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- Aoife Warren
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