The cards Question What is electrical resistance? Tap to flip Answer A measure of how difficult it is for a current to flow through a component or circuit. Question What is the unit of resistance? Tap to flip Answer The ohm (Ω). Question What does an ammeter measure? Tap to flip Answer The current flowing through a circuit. Question What is the unit of current? Tap to flip Answer The amp (A), short for ampere. Question In a fair test, which variable is the only one that is changed? Tap to flip Answer The independent variable. Question What are the variables that are deliberately kept the same in a fair test called? Tap to flip Answer Control variables. Question How does the thickness of a wire affect its resistance? Tap to flip Answer The thicker the wire, the smaller its resistance. Question What happens to a wire's resistance if its cross-sectional area is doubled? Tap to flip Answer It halves. Question Doubling a wire's cross-sectional area does what to the number of electrons that can flow through it? Tap to flip Answer It doubles it. Question What is an electric current in a metal wire? Tap to flip Answer A flow of electrons moving between the 'atoms' (metal ions). Question How is a metal ion formed? Tap to flip Answer A metal atom loses one or more electrons. Question What is the charge on a metal ion? Tap to flip Answer Positive. Question Which charges flow in conductors to give an electric current? Tap to flip Answer Electrons. Question What does it mean for two variables to be proportional? Tap to flip Answer One changes as a multiple of the other. Question How does the length of a wire affect its resistance? Tap to flip Answer The longer the wire, the greater its resistance. Question What happens to a wire's resistance if its length is doubled? Tap to flip Answer It doubles. Question The resistance of a uniform wire is proportional to which property of the wire? Tap to flip Answer Its length. Question What is a series circuit? Tap to flip Answer A circuit with one complete loop from one end of a cell or battery to the other end. Question What is a parallel circuit? Tap to flip Answer A circuit with more than one complete loop from one end of a cell or battery to the other end. Question What is a complete circuit? Tap to flip Answer A circuit with no gaps, so electricity can flow continuously around it. Question How is a parallel circuit built systematically? Tap to flip Answer By completing each loop of the circuit in turn. Question How is a voltmeter connected to a component? Tap to flip Answer In parallel, to each side of the component. Question What is the unit of voltage? Tap to flip Answer The volt (V). Question What is voltage? Tap to flip Answer A measure of the 'push' from a cell or battery that moves charge around a circuit. Question What is the more formal term for voltage? Tap to flip Answer Potential difference. Question How does the voltage across each branch of a parallel circuit compare with the voltage across the cell or battery? Tap to flip Answer It is the same. Question What is a battery? Tap to flip Answer Two or more cells connected in series. Question Each loop of a parallel circuit is equivalent to what kind of circuit? Tap to flip Answer A series circuit connected to the same cell or battery. Question What is a branch of a parallel circuit? Tap to flip Answer A separate loop in a parallel circuit. Question Where is an ammeter connected to measure the current through the battery in a parallel circuit? Tap to flip Answer Next to one end of the battery. Question Where is an ammeter connected to measure the current through one branch of a parallel circuit? Tap to flip Answer Between that branch's connections to the rest of the circuit. Question How do the currents through the branches of a parallel circuit relate to the current through the battery? Tap to flip Answer They add up to the total current through the battery. Question What is current? Tap to flip Answer The rate of flow of charge in a circuit. Question With the same battery, are two bulbs brighter in parallel or in series? Tap to flip Answer In parallel. Question With the same battery, is the current through two bulbs bigger in parallel or in series? Tap to flip Answer In parallel. Question With the same battery, is the voltage across one of two bulbs bigger in parallel or in series? Tap to flip Answer In parallel. Question Will a battery lighting two bulbs run out faster with the bulbs in parallel or in series? Tap to flip Answer In parallel. Question What is power? Tap to flip Answer The amount of energy transferred every second. Question What is the unit of power? Tap to flip Answer The watt (W). Question How many watts are in one kilowatt? Tap to flip Answer 1000 W. Question What is the unit of energy? Tap to flip Answer The joule (J). Question How do you work out the energy a device uses in kilowatt-hours? Tap to flip Answer Multiply its power in kilowatts (kW) by the time in hours (h). Question One unit of energy on an electricity bill is equal to what? Tap to flip Answer 1 kilowatt-hour (kWh). Where this deck sits in the curriculum Curriculum National Curriculum for England Stage Key stage 3 (Years 7–9) Course KS3 Science Unit Resistance and parallel circuits England's National Curriculum sets what is taught; the units and their order are Oak National Academy's. Flash Feed is not affiliated with Oak or any exam board.
How this deck was checked On 2026-11-02, every card was compared with its source: the lessons of Oak National Academy, a public body funded by England's Department for Education that publishes lessons for the national curriculum. Because the cards come from those lessons, no second source was sought. The comparison was done automatically, not by a teacher, so a card can still be wrong. Flash Feed is not affiliated with any source named here.
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A Science lesson by Oak National Academy licensed under Open Government Licence (OGL)
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