Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 826 · 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.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 10 (c) 1024 (d) 100
2. 2.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
3. 3.True or false: the voltmeter measures current. (a) True (b) False
4. 4.📏 How many amperes (A) is 1230 mA? =
5. 5.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
6. 6.True or false: the voltmeter is joined in series. (a) False (b) True
7. 7.📏 Which unit measures energy used each second? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
8. 8.📏 How many ohms (Ω) is 4.6 kΩ?
9. 9.📏 How many watts (W) is 0.7 kW?
10. 10.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
11. 11.True or false: how much a part resists is measured in amperes (A). (a) True (b) False
12. 12.📏 How many kilo-ohms (kΩ) is 9900 Ω? =
13. 13.📏 How many amperes (A) is 850 mA? =
14. 14.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
15. 15.Which of these is measured in volts (V)? (a) current (b) power (c) voltage (d) how much a part resists
16. 16.Which of these is measured in amperes (A)? (a) the flow of charge (b) voltage (c) energy used each second (d) how much a part resists
17. 17.Which of these is measured in ohms (Ω)? (a) voltage (b) how much a part resists (c) energy used each second (d) power
18. 18.📏 How many amperes (A) is 2070 mA? =
19. 19.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
20. 20.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a bigger tank (c) a narrow pipe (d) the water pressure
21. 21.True or false: voltage is measured in amperes (A). (a) False (b) True
22. 22.True or false: the ammeter is joined in series. (a) False (b) True
23. 23.True or false: how much a part resists is measured in watts (W). (a) True (b) False
24. 24.📏 Which unit measures how much a part resists? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
25. 25.📏 How many ohms (Ω) is 6.5 kΩ?
26. 26.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
27. 27.📏 How many amperes (A) is 290 mA? =
28. 28.📏 How many watts (W) is 0.8 kW?
29. 29.📏 How many milliamperes (mA) is 0.34 A?
30. 30.Which of these is measured in watts (W)? (a) resistance (b) how much a part resists (c) energy used each second (d) voltage
31. 31.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
32. 32.True or false: power is measured in watts (W). (a) True (b) False
33. 33.True or false: the push of a cell is measured in volts (V). (a) True (b) False
34. 34.📏 Which unit measures voltage? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
35. 35.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the water tank lid (c) the tap handle (d) the pipe colour
36. 36.📏 How many kilowatts (kW) is 1050 W? =
37. 37.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 1000 (c) 10 (d) 60
38. 38.📏 How many kilo-ohms (kΩ) is 8300 Ω? =
39. 39.Which of these is measured in volts (V)? (a) the push of a cell (b) energy used each second (c) the flow of charge (d) power
40. 40.True or false: power is measured in ohms (Ω). (a) False (b) True

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