Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 665 · 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.Which of these is measured in volts (V)? (a) resistance (b) voltage (c) energy used each second (d) how much a part resists
2. 2.📏 Which unit measures how much a part resists? (a) watt (W) (b) ampere (A) (c) volt (V) (d) ohm (Ω)
3. 3.True or false: how much a part resists is measured in ohms (Ω). (a) True (b) False
4. 4.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
5. 5.📏 How many watts (W) is 1.8 kW?
6. 6.📏 How many ohms (Ω) is 9.6 kΩ?
7. 7.📏 How many amperes (A) is 2350 mA? =
8. 8.📏 How many milliamperes (mA) make 1 ampere? (a) 60 (b) 10 (c) 1000 (d) 100
9. 9.True or false: the voltmeter is joined across a part. (a) True (b) False
10. 10.📏 How many kilo-ohms (kΩ) is 3200 Ω? =
11. 11.📏 How many watts (W) is 4.9 kW?
12. 12.Which of these is measured in volts (V)? (a) the flow of charge (b) resistance (c) power (d) the push of a cell
13. 13.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
14. 14.📏 How many kilowatts (kW) is 3000 W? =
15. 15.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
16. 16.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the flow of water (c) the pipe colour (d) the water pressure
17. 17.📏 How many amperes (A) is 2460 mA? =
18. 18.📏 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
19. 19.📏 How many watts (W) is 0.6 kW?
20. 20.True or false: the voltmeter measures current. (a) False (b) True
21. 21.📏 How many kilo-ohms (kΩ) is 8900 Ω? =
22. 22.True or false: current is measured in amperes (A). (a) False (b) True
23. 23.📏 How many amperes (A) is 230 mA? =
24. 24.📏 How many watts (W) is 3.3 kW?
25. 25.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1024 (c) 100 (d) 1000
26. 26.📏 How many milliamperes (mA) is 1.99 A?
27. 27.Which of these is measured in watts (W)? (a) the push of a cell (b) energy used each second (c) current (d) resistance
28. 28.True or false: voltage is measured in volts (V). (a) False (b) True
29. 29.Which of these is measured in watts (W)? (a) the push of a cell (b) power (c) voltage (d) how much a part resists
30. 30.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
31. 31.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) the water pressure (c) a narrow pipe (d) a bigger tank
32. 32.True or false: the push of a cell is measured in volts (V). (a) True (b) False
33. 33.True or false: the flow of charge is measured in volts (V). (a) True (b) False
34. 34.📏 How many kilo-ohms (kΩ) is 700 Ω? =
35. 35.Which of these is measured in amperes (A)? (a) current (b) how much a part resists (c) voltage (d) energy used each second
36. 36.True or false: the ammeter is joined across a part. (a) False (b) True
37. 37.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) energy used each second (c) how much a part resists (d) power
38. 38.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) resistance (c) voltage (d) current
39. 39.📏 Which unit measures the push of a cell? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
40. 40.📏 Which unit measures power? (a) volt (V) (b) watt (W) (c) ohm (Ω) (d) ampere (A)

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