Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 951 · 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.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
2. 2.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the water tank lid (c) the tap handle (d) the pipe colour
3. 3.Which of these is measured in volts (V)? (a) the flow of charge (b) power (c) current (d) the push of a cell
4. 4.Which of these is measured in watts (W)? (a) energy used each second (b) the push of a cell (c) current (d) the flow of charge
5. 5.Which of these is measured in watts (W)? (a) how much a part resists (b) power (c) voltage (d) resistance
6. 6.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
7. 7.📏 Which unit measures the flow of charge? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
8. 8.Which of these is measured in amperes (A)? (a) resistance (b) the flow of charge (c) the push of a cell (d) voltage
9. 9.True or false: the voltmeter measures current. (a) True (b) False
10. 10.📏 Which unit measures the push of a cell? (a) ohm (Ω) (b) watt (W) (c) volt (V) (d) ampere (A)
11. 11.📏 How many milliamperes (mA) is 0.26 A?
12. 12.True or false: resistance is measured in ohms (Ω). (a) False (b) True
13. 13.📏 Which unit measures power? (a) ampere (A) (b) watt (W) (c) ohm (Ω) (d) volt (V)
14. 14.📏 Voltmeter or ammeter: which one measures current? (a) ammeter (b) voltmeter
15. 15.📏 How many ohms (Ω) is 2.9 kΩ?
16. 16.True or false: the ammeter is joined across a part. (a) True (b) False
17. 17.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 60 (c) 10 (d) 100
18. 18.True or false: voltage is measured in amperes (A). (a) False (b) True
19. 19.📏 How many kilo-ohms (kΩ) is 2900 Ω? =
20. 20.📏 How many amperes (A) is 1060 mA? =
21. 21.📏 How many watts (W) is 1.1 kW?
22. 22.📏 How many kilowatts (kW) is 2300 W? =
23. 23.📏 Which unit measures energy used each second? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
24. 24.Which of these is measured in ohms (Ω)? (a) resistance (b) the push of a cell (c) power (d) the flow of charge
25. 25.📏 How many amperes (A) is 2290 mA? =
26. 26.True or false: energy used each second is measured in volts (V). (a) False (b) True
27. 27.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
28. 28.📏 How many watts (W) is 3.8 kW?
29. 29.True or false: power is measured in watts (W). (a) True (b) False
30. 30.📏 How many kilowatts (kW) is 3250 W? =
31. 31.📏 How many kilo-ohms (kΩ) is 1700 Ω? =
32. 32.True or false: the voltmeter is joined in series. (a) True (b) False
33. 33.📏 In the water-pipe picture of a circuit, resistance is like … (a) a bigger tank (b) the water pressure (c) a narrow pipe (d) the flow of water
34. 34.📏 How many watts (W) is 3.4 kW?
35. 35.True or false: the ammeter measures current. (a) True (b) False
36. 36.📏 How many milliamperes (mA) is 0.82 A?
37. 37.Which of these is measured in ohms (Ω)? (a) how much a part resists (b) power (c) current (d) voltage
38. 38.Which of these is measured in amperes (A)? (a) current (b) power (c) voltage (d) how much a part resists
39. 39.📏 How many kilowatts (kW) is 300 W? =
40. 40.📏 How many amperes (A) is 2980 mA? =

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