Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 599 · 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) True (b) False
2. 2.📏 How many kilo-ohms (kΩ) is 4500 Ω? =
3. 3.True or false: the push of a cell is measured in volts (V). (a) False (b) True
4. 4.True or false: the voltmeter is joined across a part. (a) False (b) True
5. 5.📏 How many kilo-ohms (kΩ) is 5600 Ω? =
6. 6.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
7. 7.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the flow of water (c) a narrow pipe (d) the water pressure
8. 8.📏 How many milliamperes (mA) is 2.09 A?
9. 9.📏 How many watts (W) is 1.5 kW?
10. 10.True or false: the ammeter is joined in series. (a) False (b) True
11. 11.Which of these is measured in amperes (A)? (a) energy used each second (b) the flow of charge (c) power (d) resistance
12. 12.📏 How many ohms (Ω) is 5.6 kΩ?
13. 13.True or false: the ammeter measures voltage. (a) True (b) False
14. 14.Which of these is measured in ohms (Ω)? (a) voltage (b) power (c) energy used each second (d) resistance
15. 15.📏 How many milliamperes (mA) make 1 ampere? (a) 100 (b) 1000 (c) 10 (d) 60
16. 16.📏 How many amperes (A) is 2800 mA? =
17. 17.📏 Which unit measures energy used each second? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
18. 18.True or false: current is measured in amperes (A). (a) False (b) True
19. 19.True or false: the push of a cell is measured in ohms (Ω). (a) True (b) False
20. 20.📏 How many amperes (A) is 130 mA? =
21. 21.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
22. 22.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the water tank lid (c) the tap handle (d) the water pressure
23. 23.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
24. 24.📏 How many ohms (Ω) is 2.1 kΩ?
25. 25.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1000 (c) 100 (d) 1024
26. 26.True or false: the voltmeter is joined in series. (a) False (b) True
27. 27.True or false: the ammeter is joined across a part. (a) True (b) False
28. 28.📏 How many amperes (A) is 2340 mA? =
29. 29.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
30. 30.📏 How many milliamperes (mA) is 2.89 A?
31. 31.Which of these is measured in amperes (A)? (a) power (b) voltage (c) current (d) the push of a cell
32. 32.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) a narrow pipe (c) the water pressure (d) the flow of water
33. 33.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
34. 34.Which of these is measured in watts (W)? (a) the push of a cell (b) voltage (c) power (d) how much a part resists
35. 35.📏 Which unit measures power? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
36. 36.📏 How many watts (W) is 3.6 kW?
37. 37.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
38. 38.📏 How many watts (W) is 4.5 kW?
39. 39.📏 Which unit measures current? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
40. 40.True or false: how much a part resists is measured in amperes (A). (a) True (b) False

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