Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 318 · 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: the push of a cell is measured in volts (V). (a) False (b) True
2. 2.📏 How many kilowatts (kW) is 550 W? =
3. 3.📏 How many amperes (A) is 710 mA? =
4. 4.True or false: the ammeter is joined in series. (a) True (b) False
5. 5.True or false: the voltmeter is joined across a part. (a) True (b) False
6. 6.Which of these is measured in amperes (A)? (a) the push of a cell (b) current (c) voltage (d) power
7. 7.Which of these is measured in ohms (Ω)? (a) energy used each second (b) the push of a cell (c) the flow of charge (d) how much a part resists
8. 8.True or false: resistance is measured in ohms (Ω). (a) False (b) True
9. 9.True or false: the ammeter is joined across a part. (a) False (b) True
10. 10.📏 Which unit measures the push of a cell? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
11. 11.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a narrow pipe (c) a bigger tank (d) the water pressure
12. 12.📏 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
13. 13.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
14. 14.📏 How many ohms (Ω) is 3.2 kΩ?
15. 15.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
16. 16.Which of these is measured in amperes (A)? (a) the push of a cell (b) voltage (c) energy used each second (d) the flow of charge
17. 17.📏 How many ohms (Ω) is 5.9 kΩ?
18. 18.📏 Which unit measures voltage? (a) watt (W) (b) ohm (Ω) (c) ampere (A) (d) volt (V)
19. 19.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
20. 20.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 1024 (c) 100 (d) 10
21. 21.📏 How many milliamperes (mA) is 1.69 A?
22. 22.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
23. 23.📏 In the water-pipe picture of a circuit, voltage is like … (a) the tap handle (b) the pipe colour (c) the water pressure (d) the water tank lid
24. 24.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
25. 25.📏 Which unit measures how much a part resists? (a) ampere (A) (b) ohm (Ω) (c) volt (V) (d) watt (W)
26. 26.📏 How many kilo-ohms (kΩ) is 400 Ω? =
27. 27.📏 How many ohms (Ω) is 1.7 kΩ?
28. 28.📏 How many kilo-ohms (kΩ) is 2200 Ω? =
29. 29.True or false: the voltmeter measures voltage. (a) False (b) True
30. 30.Which of these is measured in volts (V)? (a) the push of a cell (b) how much a part resists (c) the flow of charge (d) power
31. 31.📏 How many ohms (Ω) is 6.2 kΩ?
32. 32.True or false: the ammeter measures voltage. (a) False (b) True
33. 33.📏 How many ohms (Ω) is 7.4 kΩ?
34. 34.📏 Which unit measures the flow of charge? (a) ohm (Ω) (b) ampere (A) (c) watt (W) (d) volt (V)
35. 35.📏 How many watts (W) is 4.6 kW?
36. 36.📏 How many amperes (A) is 1120 mA? =
37. 37.📏 How many milliamperes (mA) is 2.02 A?
38. 38.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
39. 39.📏 How many kilo-ohms (kΩ) is 600 Ω? =
40. 40.True or false: energy used each second is measured in amperes (A). (a) True (b) False

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