
P3 Electricity so far
Quiz by John Farrant
GCSE (OCR)
Physics A (9-1)(ARCHIVED)
English National Curriculum
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18 questions
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- Q1A balloon is rubbed with a cloth. The balloon becomes positively charged. Why?The balloon has gained positive charge from the cloth.The balloon has lost negative charge to the cloth.Protons have moved.The cloth has gained positive charge from the balloon.30sP3.1c
- Q22 objects are rubbed together so that they build up a static charge of electricity. Which statement is NOT trueThe 2 charged objects will have electric fields around them.Electrons must have transferred from one object to the other.The 2 charged objects will be attracted to each other.The 2 objects must be conductors for static charge to build up.30s
- Q3What are the units of charge?coulombs (C)amperes (A)volts (V)ohms (Ω)30s
- Q4What are the units of current?ohms (Ω)coulombs (C)amperes (A)volts (V)30s
- Q5What is the definition of electric current?How fast metal ions moveHow fast electricity movesThe flow (or movement) of chargeThe flow (or movement) of subatomic particles30s
- Q6What piece of equipment is used to measure current?ammetervoltmeterresistorcoulometer30s
- Q7What are the units of potential difference?volts (V)coulombs (C)amperes (A)ohms (Ω)30s
- Q8What are the units of resistance?ohms (Ω)amperes (A)coulombs (C)volts (V)30s
- Q9Which of these equations can be used to calculate current?current = time/chargecurrent = charge x timecurrent = charge/time30s
- Q10Which of these equations can be used to calculate potential difference (sometimes called voltage)?potential difference = energy/chargepotential difference = charge/energypotential difference = charge x energy30s
- Q11Which of these equations can be used to calculate resistance?resistance = potential difference/currentresistance = current/potential differenceresistance = current x potential difference30s
- Q12What piece of equipment is used to measure potential difference?coulometervoltmeterammeterresistor30s
- Q13What piece of equipment is used to measure current?voltmeterammeterresistorcoulometer30s
- Q14What statement is true about current in a series circuit?Current is shared between the difference pathways in a series circuit.Current is used up by components, such as bulbs.It has the same value at any point in the circuit.Current is shared between components.30s
- Q15What statement is true about current in a parallel circuit?Current is used up by components, such as bulbs.Current is shared between components.Current is shared between the difference pathways in a parallel circuit.Current is the same on the difference pathways in a parallel circuit.30s