Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 700 · 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.📏 In the water-pipe picture of a circuit, current is like … (a) the water pressure (b) the flow of water (c) a narrow pipe (d) the pipe colour
2. 2.True or false: the voltmeter measures voltage. (a) False (b) True
3. 3.📏 How many amperes (A) is 500 mA? =
4. 4.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False
5. 5.📏 How many kilo-ohms (kΩ) is 4500 Ω? =
6. 6.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
7. 7.📏 Which unit measures the push of a cell? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
8. 8.📏 How many ohms (Ω) is 1.3 kΩ?
9. 9.📏 How many kilowatts (kW) is 4550 W? =
10. 10.True or false: the voltmeter is joined across a part. (a) False (b) True
11. 11.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
12. 12.True or false: the ammeter is joined across a part. (a) False (b) True
13. 13.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
14. 14.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
15. 15.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the water tank lid (c) the water pressure (d) the pipe colour
16. 16.📏 How many kilo-ohms (kΩ) is 8700 Ω? =
17. 17.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
18. 18.True or false: power is measured in volts (V). (a) True (b) False
19. 19.True or false: the push of a cell is measured in ohms (Ω). (a) False (b) True
20. 20.📏 How many ohms (Ω) is 4.4 kΩ?
21. 21.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 1000 (c) 100 (d) 10
22. 22.True or false: energy used each second is measured in amperes (A). (a) False (b) True
23. 23.📏 How many kilo-ohms (kΩ) is 8500 Ω? =
24. 24.Which of these is measured in volts (V)? (a) power (b) the flow of charge (c) how much a part resists (d) the push of a cell
25. 25.True or false: voltage is measured in ohms (Ω). (a) False (b) True
26. 26.True or false: the voltmeter is joined in series. (a) True (b) False
27. 27.True or false: the ammeter measures voltage. (a) True (b) False
28. 28.📏 Which unit measures voltage? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
29. 29.📏 How many ohms (Ω) is 8.3 kΩ?
30. 30.📏 How many kilowatts (kW) is 4350 W? =
31. 31.True or false: resistance is measured in amperes (A). (a) True (b) False
32. 32.📏 How many milliamperes (mA) is 0.56 A?
33. 33.📏 How many watts (W) is 4.3 kW?
34. 34.True or false: the voltmeter measures current. (a) True (b) False
35. 35.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
36. 36.Which of these is measured in amperes (A)? (a) energy used each second (b) resistance (c) current (d) power
37. 37.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) resistance (c) voltage (d) the push of a cell
38. 38.True or false: voltage is measured in amperes (A). (a) True (b) False
39. 39.📏 How many ohms (Ω) is 8.1 kΩ?
40. 40.True or false: resistance is measured in ohms (Ω). (a) True (b) False

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