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AQA GCSE PHYSICS ELECTRICITY PRACTICE SOLUTION STUDY SHEET QUESTIONS AND DETAILED ANSWERS

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AQA GCSE PHYSICS ELECTRICITY PRACTICE SOLUTION STUDY SHEET QUESTIONS AND DETAILED ANSWERS

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AQA GCSE PHYSICS ELECTRICITY
PRACTICE SOLUTION STUDY SHEET
QUESTIONS AND DETAILED ANSWERS

●● Electrical charge will only...
Answer: flow around a complete (closed) circuit if there is POTENTIAL
DIFFERENCE (PD). There needs to be a source for PD. PD pushes the
charge around.


●● The unit for potential difference is...
Answer: volt (v)


●● Current is measured in...
Answer: ampere, (amps, A)


●● Resistance is anything that...
Answer: slows flow down.


●● Unit for resistance is...
Answer: Ohms (Ω)


●● The CURRENT flowing through a component depends on...

, Answer: PD across it + the RESISTANCE of the component.


●● The GREATER RESISTANCE of a component...
Answer: the SMALLER the CURRENT that flows (for a given PD
across the component).


●● The size of the CURRENT is the...
Answer: RATE of flow of charge.
MORE charge passes around the circuit when a LARGER current flows.


●● Equation for charge flow =
Answer: Charge flow (coulombs, C) = Current x time


●● cell
Answer:


●● battery
Answer:


●● switch (open)
Answer:

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