Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 268 · 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 kilo-ohms (kΩ) is 3500 Ω? =
2. 2.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 10 (b) 1000 (c) 100 (d) 1024
3. 3.📏 How many milliamperes (mA) is 0.02 A?
4. 4.True or false: the voltmeter measures voltage. (a) True (b) False
5. 5.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False
6. 6.True or false: power is measured in ohms (Ω). (a) False (b) True
7. 7.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
8. 8.📏 How many kilo-ohms (kΩ) is 8000 Ω? =
9. 9.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
10. 10.📏 Which unit measures resistance? (a) volt (V) (b) ohm (Ω) (c) watt (W) (d) ampere (A)
11. 11.📏 How many kilo-ohms (kΩ) is 5400 Ω? =
12. 12.📏 Which unit measures power? (a) volt (V) (b) ampere (A) (c) watt (W) (d) ohm (Ω)
13. 13.True or false: power is measured in watts (W). (a) False (b) True
14. 14.Which of these is measured in ohms (Ω)? (a) the flow of charge (b) voltage (c) the push of a cell (d) how much a part resists
15. 15.📏 In the water-pipe picture of a circuit, current is like … (a) the pipe colour (b) the flow of water (c) the water pressure (d) a narrow pipe
16. 16.📏 How many amperes (A) is 1960 mA? =
17. 17.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the pipe colour (c) the tap handle (d) the water tank lid
18. 18.True or false: current is measured in watts (W). (a) False (b) True
19. 19.True or false: the voltmeter is joined in series. (a) True (b) False
20. 20.True or false: the flow of charge is measured in ohms (Ω). (a) False (b) True
21. 21.True or false: energy used each second is measured in volts (V). (a) True (b) False
22. 22.📏 How many watts (W) is 0.6 kW?
23. 23.True or false: the push of a cell is measured in amperes (A). (a) True (b) False
24. 24.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
25. 25.True or false: resistance is measured in volts (V). (a) False (b) True
26. 26.Which of these is measured in volts (V)? (a) voltage (b) the flow of charge (c) power (d) current
27. 27.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
28. 28.True or false: the ammeter measures current. (a) False (b) True
29. 29.True or false: the ammeter measures voltage. (a) False (b) True
30. 30.True or false: current is measured in ohms (Ω). (a) True (b) False
31. 31.📏 How many amperes (A) is 120 mA? =
32. 32.📏 Which unit measures voltage? (a) ohm (Ω) (b) ampere (A) (c) volt (V) (d) watt (W)
33. 33.📏 How many ohms (Ω) is 6.8 kΩ?
34. 34.Which of these is measured in amperes (A)? (a) resistance (b) how much a part resists (c) the flow of charge (d) voltage
35. 35.True or false: energy used each second is measured in watts (W). (a) False (b) True
36. 36.📏 How many milliamperes (mA) is 2.58 A?
37. 37.📏 In the water-pipe picture of a circuit, resistance is like … (a) the water pressure (b) the flow of water (c) a narrow pipe (d) a bigger tank
38. 38.True or false: the ammeter is joined in series. (a) False (b) True
39. 39.Which of these is measured in amperes (A)? (a) resistance (b) current (c) voltage (d) power
40. 40.📏 How many kilowatts (kW) is 4300 W? =

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