Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 615 · 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) 1024 (b) 1000 (c) 10 (d) 100
2. 2.True or false: the voltmeter is joined across a part. (a) True (b) False
3. 3.📏 Which unit measures voltage? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
4. 4.📏 How many amperes (A) is 1270 mA? =
5. 5.📏 How many ohms (Ω) is 5.1 kΩ?
6. 6.📏 Which unit measures how much a part resists? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
7. 7.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
8. 8.📏 Which unit measures the push of a cell? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
9. 9.📏 How many milliamperes (mA) make 1 ampere? (a) 10 (b) 1000 (c) 60 (d) 100
10. 10.📏 How many amperes (A) is 1050 mA? =
11. 11.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) a narrow pipe (c) the water pressure (d) the flow of water
12. 12.📏 How many watts (W) is 1.5 kW?
13. 13.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
14. 14.Which of these is measured in volts (V)? (a) voltage (b) power (c) the flow of charge (d) how much a part resists
15. 15.True or false: voltage is measured in volts (V). (a) True (b) False
16. 16.📏 Voltmeter or ammeter: which one is joined across a part? (a) voltmeter (b) ammeter
17. 17.True or false: energy used each second is measured in watts (W). (a) True (b) False
18. 18.True or false: the push of a cell is measured in watts (W). (a) True (b) False
19. 19.Which of these is measured in amperes (A)? (a) voltage (b) resistance (c) power (d) current
20. 20.Which of these is measured in volts (V)? (a) the flow of charge (b) how much a part resists (c) energy used each second (d) the push of a cell
21. 21.📏 How many ohms (Ω) is 4.1 kΩ?
22. 22.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
23. 23.Which of these is measured in amperes (A)? (a) the flow of charge (b) how much a part resists (c) resistance (d) energy used each second
24. 24.True or false: current is measured in ohms (Ω). (a) True (b) False
25. 25.Which of these is measured in watts (W)? (a) power (b) the flow of charge (c) voltage (d) the push of a cell
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.True or false: current is measured in amperes (A). (a) False (b) True
28. 28.True or false: how much a part resists is measured in ohms (Ω). (a) False (b) True
29. 29.📏 How many ohms (Ω) is 8.3 kΩ?
30. 30.📏 How many watts (W) is 1.3 kW?
31. 31.📏 How many amperes (A) is 1240 mA? =
32. 32.True or false: voltage is measured in amperes (A). (a) False (b) True
33. 33.📏 How many kilo-ohms (kΩ) is 3800 Ω? =
34. 34.True or false: power is measured in amperes (A). (a) True (b) False
35. 35.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) power (c) voltage (d) current
36. 36.📏 How many kilowatts (kW) is 2700 W? =
37. 37.True or false: the ammeter is joined in series. (a) False (b) True
38. 38.📏 How many kilowatts (kW) is 3700 W? =
39. 39.📏 How many watts (W) is 1.1 kW?
40. 40.📏 How many amperes (A) is 800 mA? =

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