Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 924 · 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.True or false: resistance is measured in ohms (Ω). (a) True (b) False
2. 2.📏 How many kilo-ohms (kΩ) is 5700 Ω? =
3. 3.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
4. 4.Which of these is measured in watts (W)? (a) how much a part resists (b) resistance (c) voltage (d) power
5. 5.📏 Which unit measures current? (a) volt (V) (b) watt (W) (c) ampere (A) (d) ohm (Ω)
6. 6.True or false: the voltmeter measures current. (a) True (b) False
7. 7.📏 Which unit measures power? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
8. 8.Which of these is measured in watts (W)? (a) the push of a cell (b) current (c) energy used each second (d) resistance
9. 9.True or false: the voltmeter is joined in series. (a) False (b) True
10. 10.📏 How many ohms (Ω) is 1.1 kΩ?
11. 11.📏 In the water-pipe picture of a circuit, current is like … (a) the flow of water (b) a narrow pipe (c) the water pressure (d) the pipe colour
12. 12.📏 How many amperes (A) is 1220 mA? =
13. 13.Which of these is measured in amperes (A)? (a) how much a part resists (b) current (c) the push of a cell (d) voltage
14. 14.Which of these is measured in volts (V)? (a) power (b) the flow of charge (c) voltage (d) how much a part resists
15. 15.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
16. 16.📏 How many ohms (Ω) is 8.8 kΩ?
17. 17.True or false: voltage is measured in watts (W). (a) True (b) False
18. 18.📏 Which unit measures how much a part resists? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
19. 19.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
20. 20.True or false: the ammeter measures voltage. (a) True (b) False
21. 21.📏 How many kilo-ohms (kΩ) is 9800 Ω? =
22. 22.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 1000 (c) 60 (d) 100
23. 23.📏 How many kilowatts (kW) is 4100 W? =
24. 24.📏 How many ohms (Ω) is 3.5 kΩ?
25. 25.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) the flow of water (c) the water pressure (d) a bigger tank
26. 26.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the tap handle (c) the water tank lid (d) the pipe colour
27. 27.📏 How many kilowatts (kW) is 1500 W? =
28. 28.Which of these is measured in volts (V)? (a) resistance (b) energy used each second (c) the push of a cell (d) power
29. 29.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1000 (c) 100 (d) 1024
30. 30.True or false: the flow of charge is measured in ohms (Ω). (a) False (b) True
31. 31.Which of these is measured in ohms (Ω)? (a) power (b) current (c) the flow of charge (d) resistance
32. 32.📏 Which unit measures energy used each second? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
33. 33.📏 Which unit measures the push of a cell? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
34. 34.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
35. 35.True or false: the ammeter is joined across a part. (a) False (b) True
36. 36.📏 How many ohms (Ω) is 5.4 kΩ?
37. 37.📏 How many kilowatts (kW) is 3000 W? =
38. 38.True or false: current is measured in watts (W). (a) True (b) False
39. 39.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
40. 40.True or false: energy used each second is measured in watts (W). (a) True (b) False

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