Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 98 · 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: energy used each second is measured in watts (W). (a) False (b) True
2. 2.True or false: the ammeter is joined in series. (a) False (b) True
3. 3.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
4. 4.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
5. 5.True or false: power is measured in volts (V). (a) False (b) True
6. 6.Which of these is measured in volts (V)? (a) current (b) energy used each second (c) resistance (d) the push of a cell
7. 7.📏 How many milliamperes (mA) is 0.71 A?
8. 8.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
9. 9.📏 Which unit measures how much a part resists? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
10. 10.True or false: the voltmeter is joined across a part. (a) False (b) True
11. 11.📏 Which unit measures the push of a cell? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
12. 12.📏 How many watts (W) is 0.6 kW?
13. 13.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) a narrow pipe (c) the flow of water (d) a bigger tank
14. 14.📏 How many watts (W) is 1.7 kW?
15. 15.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 60 (c) 1000 (d) 10
16. 16.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the tap handle (c) the water pressure (d) the pipe colour
17. 17.📏 Which unit measures current? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
18. 18.📏 Which unit measures voltage? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
19. 19.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) voltage (c) energy used each second (d) resistance
20. 20.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
21. 21.📏 Which unit measures energy used each second? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
22. 22.📏 How many kilo-ohms (kΩ) is 2100 Ω? =
23. 23.True or false: energy used each second is measured in amperes (A). (a) True (b) False
24. 24.📏 How many watts (W) is 1.2 kW?
25. 25.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) a narrow pipe (c) the pipe colour (d) the flow of water
26. 26.True or false: power is measured in amperes (A). (a) False (b) True
27. 27.True or false: the ammeter measures current. (a) True (b) False
28. 28.📏 Which unit measures resistance? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
29. 29.True or false: current is measured in watts (W). (a) False (b) True
30. 30.True or false: resistance is measured in volts (V). (a) True (b) False
31. 31.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
32. 32.📏 How many kilo-ohms (kΩ) is 400 Ω? =
33. 33.True or false: resistance is measured in watts (W). (a) False (b) True
34. 34.📏 How many amperes (A) is 1740 mA? =
35. 35.True or false: the push of a cell is measured in amperes (A). (a) False (b) True
36. 36.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) energy used each second (c) the flow of charge (d) power
37. 37.📏 How many kilo-ohms (kΩ) is 1900 Ω? =
38. 38.True or false: voltage is measured in watts (W). (a) False (b) True
39. 39.True or false: voltage is measured in amperes (A). (a) True (b) False
40. 40.Which of these is measured in amperes (A)? (a) the push of a cell (b) how much a part resists (c) current (d) energy used each second

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