1. E_E_T_I_I_Y 1.M K S J L 2.C L R C T 3.Y L J D F 4.D Q V Y K

2. Energy transformation for an electric fire is: 1.Electrical to light 2.Electrical to heat 3.Heat to electrical 4.Electrical to sound

3. Energy transformation for a vacuum cleaner is: 1.Electrical to light 2.Electrical to kinetic 3.Heat to electrical 4.Electrical to heat

4. Which power rating is incorrect? 1.Kettle – 200W 2.Light bulb – 60 to a 100W 3.Television – 150W 4.Cooker – 12000W

5. The colour for the Live wire in a plug is 1.Blue 2.Brown 3.Yellow/green 4.Purple

6. The colour for the Earth wire in a plug is 1.Blue 2.Brown 3.Yellow/green 4.Purple

7. For an appliance up to 700W, what is the correct value of fuse? 1.3A 2.5A 3.7A 4.13A

8. For an appliance greater than 700W, what is the correct value of fuse? 1.3A 2.5A 3.7A 4.13A

9. The Earth wire is always connected to the top pin in a plug 1.True 2.False

10. The Live wire is always connected to the fuse pin in a plug 1.True 2.False

11. The correct flex must be used with an appliance to … 1.Carry the current without overheating 2.Match colours with the appliance 3.Restrict the flow of current

12. An appliance with a higher power rating needs a … 1.Thinner flex 2.Shorter flex 3.Thicker flex 4.Longer flex

13. This symbol means 1.Appliance is fire proof 2.Appiance needs a thick flex 3.Appliance can be used under water 4.Appliance is double insulated

14. This symbol means 1.3 core flex is used 2.2 core flex is used 3.No flex is used

15. Which statement is true? 1.Mains supply is d.c. and battery supply is d.c. 2.Mains supply is a.c. and battery supply is a.c 3.Mains supply is d.c. and battery supply is a.c 4.Mains supply is a.c. and battery supply is d.c

16. The mains voltage is 1.240V 2.230V 3.320V 4.340V

17. The mains frequency is 1.40Hz 2.50Hz 3.40kHz 4.50Mhz

18. Alternating current (a.c.) 1.Changes direction sometimes. 2.Changes direction many times a second 3.Is always in the same direction (positive to negative) 4.Is always in the same direction (negative to positive)

19. Direct current (d.c.) 1.Changes direction sometimes. 2.Changes direction many times a second 3.Is always in the same direction (positive to negative) 4.Is always in the same direction (negative to positive)

20. Charge has the symbol ___ and is measured in _____. 1.C and Amps 2.Q and Amps 3.C and Coulombs 4.Q and Coulombs

21. Charge, current and time are related by the equation: 1.Q = I x t 2.I = Q x t 3.t = I x Q 4.Q = I 2 x t

22. The voltage of a supply is a measure of the Energy given to the charges in a circuit. 1.True 2.False

23. What is the current when 600C of charge is transferred in 5 mins? 1.3000V 2.120A 3.3000A 4.2A

24. Current is measured using 1.Ammeter 2.Voltmeter 3.Ohmmeter 4.Stop watch

25. A voltmeter is always placed in parallel 1.True 2.False

26. An ammeter is always placed in parallel 1.True 2.False

27. Ohms laws is 1.R = V x I 2.I = V x R 3.V = I x R 4.P = I 2 x R

28. What current can a 230V supply produce in a 1kilohm resistor 1.23A 2.230A 3.2.3mA 4.230mA

29. Energy has the symbol E and is measured in ___ 1.Watts (W) 2.Amps (A) 3.Coulombs (C) 4.Joules (J)

30. Energy is related to Power and time through the equation 1.E = P/t 2.E = Pt 3.E = P 2 t 4.P = Et

31. What is the current through a 2kW heater connected to a 240V supply 1.8.3A 2.480A 3.120A 4.0.48A

32. What is the expression that relates Power, Current and Resistance? 1.P=IR 2.P=IV 3.P=I 2 R 4.P=I 2 V

33. The energy change in a filament lamp is 1.Light to electrical 2.Electrical to light 3.Electrical to heat and light 4.Electrical to heat

34. For a filament lamp, the energy change takes place in the … 1.Gas 2.Glass 3.Resistance wire 4.Imagination

35. For a fluorescent tube, the energy change takes place in the … 1.Gas 2.Glass 3.Resistance wire 4.Imagination

36. How long does it take for a 2.5kW fire to use 30MJ of energy? 1.200mins 2.1200mins 3.1200s 4.75s

37. What is the power dissipated in a 10ohm resistor with 50mA through it? 1.25W 2.100W 3.0.25W 4.25mW

38. The current in a series circuit 1.Is the same throughout the circuit if all components are the same 2.Is the same throughout the circuit 3.Is less than the supply 4.Splits across the various components

39. The current in a parallel circuit 1.Is the same throughout the circuit if all components are the same 2.Is the same throughout the circuit 3.Is less than the supply 4.Splits across the various components

40. The voltage in a series circuit 1.Is the same throughout the circuit if all components are the same 2.Is the same throughout the circuit 3.Is less than the supply 4.Splits across the various components

41. The voltage across components in a parallel circuit 1.Is the same across each component. 2.Can be summed to equal the supply voltage

42. Which of the equations below is incorrect for a series circuit 1.I T = I 1 = I 2 2.V s = V 1 + V 2 3.I T = I 1 + I 2 4.R T = R 1 + R 2

43. Which of the equations below is incorrect for a parallel circuit 1.I T = V T / R T 2.V s = V 1 = V 2 3.I T = I 1 + I 2 4.R T = R 1 + R 2

44. A 6 Ohm and 3 Ohm resistor are in parallel. What is their total resistance? 1.3 Ohm 2.6 Ohm 3.10 Ohm 4.2 Ohm

45. A 6 ohm and 4 Ohm resistor are in series. What is their total resistance? 1.3 Ohm 2.6 Ohm 3.10 Ohm 4.2 Ohm

46. I have a 1 Ohm resistor and I place several other resistors that are higher in value in parallel. Does the total resistance 1.Increase 2.Decrease 3.Stay the same

47. Team Scores 3167Team 3 3067Team 5 2767Team 1 2733Team 4 2683Team 2