1. Which of the following is the unit of electrical current? :40 1.Joule 2.Volt 3.Ampere 4.Watt 5.Coulomb

2. Which of the following is the symbol for a fuse? 40 1. 2. 3. 4. 5.

3. The symbol below is sometimes seen on the rating plates of appliances. This tells you that the appliance 1.Operates at 230V 2.Does not require a live wire 3.Does not require a earth wire 4.Does not require a neutral wire 5.Does not need a fuse 40

4. The insulation on the wires in a mains flex is colour coded. Which of the following correctly identifies the colour of the wires? Live Neutral Earth 1.blue green/yellow brown 2.green/yellow brown blue 3.blue brown green/yellow 4.brown green/yellow blue 5.brown blue green/yellow

5. In the circuit below the resistors P,Q,R and S have the same resistance. In which resistors is the current the same? P QR S 1.Q and S 2.Q, R and S only 3.P,Q,R and S 4.P and S only 5.Q and R only 40

6. In the circuit below the reading on Ammeter A 1 is 5A and on Ammeter A 2 is 2 A. the reading on A 3 is A1A1 A3A3 A2A2 1. 1.5 Amperes 2.2 Amperes 3.3 Amperes 4.5 Amperes 5.7 Amperes 40

7. Which of the following correctly lists the units of power and resistance Power Resistance 1.WattOhm 2.AmpereOhm 3.OhmAmpere 4.OhmWatt 5.Ampere Watt :40

8. The circuit diagram shows a lamp a motor and a resistor connected in series to a supply. The voltage across each component is shown on the diagram below. The voltage of the supply must be : 4 v 4v 2v M 1.2 volts 2.4 volts 3.6volts 4.10 volts 5.32 volts 40

9. In the circuit shown, the current in the 2 Ω resistor is 1A. What is the current taken from the battery? 2 Ω3 Ω 1.0.4 A 2.1A 3.2A 4.3A 5.5A 40

10. The kilowatt hour is a unit of 1.Voltage 2.Current 3.Power 4.Energy 5.Charge 40

11. The frequency and voltage of the mains electricity that comes into our homes is Frequency Voltage (Hz) (V) 40 1. 50 120 2. 60120 3. 50440 4. 60230 5. 50230

12. Three identical 6V lamps operating at normal brightness are connected to a supply as shown. What is the supply voltage ? 1.0.5v 2.2.0v 3.3.0v 4.6.0v 5.18.0v 40

13. A disc jockey increases the volume of CD being played. To do this she is : 1.Increasing the resistance in the circuit 2.decreasing the resistance in the circuit 3.decreasing the voltage in the circuit 4.decreasing the current in the circuit 5.Increasing the frequency in the circuit 40

14. A lamp of resistance 5 Ω is connected to a 10v supply. What would be the current in the lamp? 1.0.5A 2.2.0A 3.10.0A 4.15.0A 5.50.0A 40

15. In this circuit the resistance of the variable resistor is increased. Which row correctly describes what happens? Ammeter Reading Lamp Brightness A 1.Increases brighter 2.Decreases brighter 3.Increases dimmer 4.Decreases dimmer 5.Decreases same 40

16. Which of the following shows the correct energy change for the electrical device? 1. Cooker:heatelectrical 2.Kettle:heatkinetic 3.Hairdryer:electricalkinetic 4.Lightbulb:heat light and sound 5.Television: lightsound 40

17. An electric cooker uses lots of electrical energy. The power rating of a cooker is approximately 1.3000w 2.3000kw 3.12kw 4.2kw 5.12mw 40

18. Andrew purchases a lamp for his father’s car. The lamp has 6w 12v marked on it. What is the current when it is operating normally? 1.0.5A 2.2.0A 3.6.0A 4.12.0A 5.72.0A 40

19. In a filament lamp and fluorescent tube, electrical energy is converted into light. Where in each lamp does this happen? Filament lamp Fluorescent tube 40 1.in the resistance wire in the gas 2.in the gas in the gas 3.in the glassin the gas 4.in the glass in the resistance wire 5.in the resistance wire in the glass

20. In the circuit, the lamps are identical the reading on the Ammeter A 1 is 4A. What is the reading on the other three meters? A 2 A 3 A 4 A1A1 A4A4 A2A2 A3A3 1.4A4A 4A 2.2A2A 2A 3.4A4A 2A 4.2A2A 4A 5.2A2A 1A 40