Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 822 · 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: power is measured in watts (W). (a) True (b) False
2. 2.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
3. 3.Which of these is measured in amperes (A)? (a) how much a part resists (b) current (c) power (d) voltage
4. 4.True or false: current is measured in watts (W). (a) True (b) False
5. 5.Which of these is measured in amperes (A)? (a) voltage (b) how much a part resists (c) the flow of charge (d) resistance
6. 6.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
7. 7.Which of these is measured in ohms (Ω)? (a) voltage (b) current (c) resistance (d) the push of a cell
8. 8.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the water tank lid (c) the pipe colour (d) the tap handle
9. 9.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) the flow of water (c) a bigger tank (d) a narrow pipe
10. 10.📏 How many kilowatts (kW) is 3050 W? =
11. 11.True or false: the ammeter is joined in series. (a) False (b) True
12. 12.True or false: resistance is measured in volts (V). (a) False (b) True
13. 13.📏 Which unit measures resistance? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
14. 14.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 10 (c) 100 (d) 60
15. 15.True or false: the ammeter measures voltage. (a) True (b) False
16. 16.📏 How many ohms (Ω) is 1.4 kΩ?
17. 17.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
18. 18.📏 In the water-pipe picture of a circuit, current is like … (a) a narrow pipe (b) the flow of water (c) the water pressure (d) the pipe colour
19. 19.📏 How many milliamperes (mA) is 0.77 A?
20. 20.True or false: the voltmeter measures current. (a) True (b) False
21. 21.📏 How many kilo-ohms (kΩ) is 8700 Ω? =
22. 22.True or false: the voltmeter is joined across a part. (a) True (b) False
23. 23.Which of these is measured in watts (W)? (a) current (b) the push of a cell (c) voltage (d) energy used each second
24. 24.True or false: how much a part resists is measured in amperes (A). (a) False (b) True
25. 25.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
26. 26.📏 How many watts (W) is 4.8 kW?
27. 27.📏 Which unit measures how much a part resists? (a) watt (W) (b) volt (V) (c) ohm (Ω) (d) ampere (A)
28. 28.📏 How many kilo-ohms (kΩ) is 5200 Ω? =
29. 29.True or false: the ammeter measures current. (a) True (b) False
30. 30.📏 Which unit measures power? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
31. 31.True or false: power is measured in ohms (Ω). (a) True (b) False
32. 32.📏 Which unit measures voltage? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
33. 33.📏 How many ohms (Ω) is 0.6 kΩ?
34. 34.True or false: the voltmeter measures voltage. (a) True (b) False
35. 35.📏 How many kilo-ohms (kΩ) is 4200 Ω? =
36. 36.True or false: the push of a cell is measured in volts (V). (a) True (b) False
37. 37.Which of these is measured in volts (V)? (a) the push of a cell (b) resistance (c) current (d) power
38. 38.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
39. 39.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) power (c) current (d) the flow of charge
40. 40.📏 How many milliamperes (mA) is 0.45 A?

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