Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 914 · 40 questions

Remember (Push, flow, resist): Voltage → volts (V), current → amperes (A), resistance → ohms (Ω), power → watts (W). milli (m) = ÷ 1000 and kilo (k) = × 1000: 250 mA = 0.25 A, 2.2 kΩ = 2200 Ω. Voltmeter across a part; ammeter in series.

1. 1.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
2. 2.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the water pressure (c) the pipe colour (d) the tap handle
3. 3.True or false: the push of a cell is measured in volts (V). (a) True (b) False
4. 4.True or false: energy used each second is measured in volts (V). (a) True (b) False
5. 5.True or false: the flow of charge is measured in watts (W). (a) True (b) False
6. 6.Which of these is measured in amperes (A)? (a) resistance (b) how much a part resists (c) power (d) current
7. 7.📏 How many amperes (A) is 990 mA? =
8. 8.📏 How many amperes (A) is 230 mA? =
9. 9.Which of these is measured in watts (W)? (a) energy used each second (b) voltage (c) current (d) how much a part resists
10. 10.📏 Which unit measures voltage? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
11. 11.📏 How many ohms (Ω) is 9.9 kΩ?
12. 12.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 10 (c) 1000 (d) 60
13. 13.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
14. 14.📏 How many amperes (A) is 30 mA? =
15. 15.True or false: the voltmeter is joined in series. (a) True (b) False
16. 16.📏 How many ohms (Ω) is 1.5 kΩ?
17. 17.True or false: power is measured in amperes (A). (a) True (b) False
18. 18.True or false: energy used each second is measured in amperes (A). (a) True (b) False
19. 19.📏 How many kilowatts (kW) is 4250 W? =
20. 20.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
21. 21.📏 Which unit measures power? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
22. 22.Which of these is measured in volts (V)? (a) power (b) energy used each second (c) the push of a cell (d) the flow of charge
23. 23.True or false: voltage is measured in watts (W). (a) True (b) False
24. 24.True or false: the ammeter is joined across a part. (a) True (b) False
25. 25.📏 Which unit measures resistance? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)
26. 26.📏 Which unit measures energy used each second? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
27. 27.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) power (c) the push of a cell (d) resistance
28. 28.📏 How many ohms (Ω) is 1.7 kΩ?
29. 29.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
30. 30.📏 How many ohms (Ω) is 2.8 kΩ?
31. 31.Which of these is measured in watts (W)? (a) how much a part resists (b) the push of a cell (c) power (d) voltage
32. 32.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the water pressure (c) a narrow pipe (d) the flow of water
33. 33.True or false: the voltmeter measures current. (a) False (b) True
34. 34.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1024 (c) 1000 (d) 100
35. 35.📏 Which unit measures current? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
36. 36.True or false: the voltmeter measures voltage. (a) True (b) False
37. 37.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
38. 38.📏 How many kilo-ohms (kΩ) is 6000 Ω? =
39. 39.📏 How many milliamperes (mA) is 1.39 A?
40. 40.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)

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