1. Who Wants To Be A Millionaire (Scientist)?
Answer these questions by simply holding up the letter of your choice on your whiteboards.

2. 1. What is the name of this piece of electrical equipment?
Cell
Battery
Bulb
Switch B C D

3. Incorrect A C D
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4. Correct B
Correct – Well done!
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5. 2. What is the name of this piece of electrical equipment?
Cell
Battery
Bulb
Switch B C D

6. Correct A
Well done
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7. Incorrect B C D
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8. 3. What is the main energy transfer in a lamp?
Light to electrical
Electrical to chemical
Electrical to light
Heat to electrical B C D

9. Incorrect A B D
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10. Correct C
Correct
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11. 4. This is the circuit symbol for which piece of electrical equipment?
Cell
Battery
Bulb
Switch B C D

12. Incorrect A B C
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13. Correct D
Correct!
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14. 5. This is the circuit symbol for which piece of electrical equipment?
Battery
Fuse
Switch
Resistor B C D

15. Incorrect A B
No. C
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16. Correct D
Correct
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17. 6. Electricity flows through a wire. We call this a current
6. Electricity flows through a wire. We call this a current. Current is measured in what units? A
Watts B
Amps
Joules C
Volts D

18. Incorrect A C D
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19. Correct B
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20. 7. What instrument do we use to measure electric current?
Ammeter
Wattmeter
Joulemeter
Voltmeter B C D

21. Correct A
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22. Incorrect B C D
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23. 8. All lamps have some resistance
8. All lamps have some resistance. Putting a lamp with large resistance into a circuit will…. A
Make the voltage bigger B
Make the voltage smaller
Make the current bigger C
Make the current smaller D

24. Incorrect A B C
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25. Correct D
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26. 9. You have identical lamps and cells, Which combination gives the brightest circuit?
One cell connected to one lamp
Two cells connected to two lamps in series
Two cells connected to one lamp
Two lamps in parallel connected to one cell B C D

27. Incorrect A
No, not quite! B D
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28. Correct C
Correct
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29. 10. A fuse is used in some electrical circuits. Why is this done?
To prevent voltage from getting too big
To create a warning sound in case of danger
To provide light and heat
To prevent current from getting dangerously large B C D

30. Incorrect A C D
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31. Correct B
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32. 11. Two lamps are connected side-by-side, so that the current is shared between them. We call this connected …? A
In a circle
In a loop.
In series
In parallel B C D

33. Incorrect A C D
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34. Correct B
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35. 12. Lamps in your house are often connected in parallel
12. Lamps in your house are often connected in parallel. This is a good idea because….? A
You can switch them on and off separately
They are cheaper.
They are dimmer
They use less current B C D

36. Incorrect B C D
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37. Correct A
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38. 13. Two lamps are connected in line, so the current flows through each
13. Two lamps are connected in line, so the current flows through each. They are said to be connected how? A
In a circle
In a loop
In series
In parallel B C D

39. Correct C
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40. Incorrect B C D
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41. 14. Christmas tree lights are often connected in series
14. Christmas tree lights are often connected in series. This is not a good idea because…..? A
They use more energy
They aren’t as colourful
There isn’t a complete circuit
If one light breaks they all go out B C D

42. Incorrect A C D
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43. Correct B
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44. 15. A second identical lamp is added in series to the circuit shown
15. A second identical lamp is added in series to the circuit shown. What will happen? A
Both lamps will be brighter B
The cell will have more voltage C
One lamp will be brighter and the other dimmer D
Both lamps will be dimmer

45. Incorrect A
No, not quite! B C
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46. Correct D
Correct
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47. You are well
on the way to
being a millionaire
scientist!