1) What does an ammeter measure? a) current b) voltage c) resistance 2) How is an ammeter connected in a cicuit? a) In parallel b) In series c) Accross the cell 3) A propety of matter that can be positive or negative a) Desnity b) Charge c) Volume d) velocity 4) The unit of charge a) Amps b) Volts c) Colombs 5) Component that only allows current to flow in one direction. It has a very high resistance in the reverse direction. a) Diode b) Filament bulb c) Wire 6) Current from batteries and cells: a) consists of charge flowing in multiple directions b) Consists of charge flowing in a single direction 7) The removal of excess charge by providing a low resistance path for current to flow is known as... a) Neutralising b) Uncharging c) Earthing 8) Current is the rate of flow of electrical charge. In metals how does this current flow? a) As moving electrons in an open loop b) As ossilating ions c) As moving electrons in a closed loop 9) What direction do electric field lines point? a) In the direction in which a negative charge would experience an electric force b) Point in the direction in which a positive charge will experience an electric force. c) Point in random directions 10) A region in which a charge will experience an electrostatic, non-contact force... a) Electric field b) Magnetic field c) Gravitational field 11) A light emmitting component consisting of an enclosed metal filament... a) LDR b) Filament Lamp 12) What happens to the resistance of an LDR as light intensity increase? a) Increases b) Stays the same c) Decreases 13) What minimum voltage must be applied accross a LED before it illuminates? a) 0.4 V b) 0.6 V c) 0.7 V 14) What causes a lightning strike? a) A discharge of charge b) Build up of static charge (without discharging) 15) An ohmic conductor = A conductor whose current flow is directly proportional to the potential difference accross it when what is constant? a) Current b) Voltage c) Light intensity d) Temperature 16) Unit of resistance... a) Volts b) mm c) Coulombs d) ohms 17) In parallel plates the electric field between the two charged plates is... a) alternating b) uniform c) random 18) What happens to an electric field around a point charge as you move further away? a) Weaknes b) Strengthens 19) The energy transferd per unit of charge between two points in an electric circuit is known as... a) Potential difference not voltage b) Potential difference or voltage c) Voltage not potential difference 20) Power = the rate at which an appliance transfers energy. How is it calculated? a) P=Resistance / I squared b) P=I squared / R c) P = IV d) P= Et 21) Describe the total resistance in a parallel circuit: a) sum of all the individual resistors b) resistance of the largest resistor c) resistance of the smallest resistor d) less than the lowest individual resistance 22) Describe the total resistance in a parallel circuit: a) sum of all the individual resistors b) resistance of the largest resistor c) resistance of the smallest resistor d) less than the lowest individual resistance 23) In a series cicuit the components... a) have different currents passing through b) have the same current passing through 24) In a series circuit the pd of the power supply... a) Is the same accross all components b) Is shared accross components 25) Sparking occurs between 2 components that have an imbalance of.. a) current b) voltage c) charges 26) Static charge is caused by... a) an imbalance of positive and negative charges b) an imbalance of positive and neutral charges 27) <img src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/10/Thermistor.svg/2560px-Thermistor.svg.png" alt="File:Thermistor.svg - Wikipedia"/> Name this component + what does its resistance depend on? a) Thermister - Light intensity b) LDR - Light intensity c) Thermister - Temperature d) LDR - temperature 28) What is one volt equilvalent to? a) one coulomb per joule b) one joule per coulomb c) one amp d) one coulomb 29) Why is a voltmeter connected in parallel to a component? a) To measure pd acrross the component b) To measure pd through the component 30) What is the unit of power? a) V b) A c) Ʊ d) W

GCSE, Physics, JMc, OCR, Gateway, KS4, UNIT THREE

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