Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 307 · 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 9600 Ω? =
2. 2.Which of these is measured in amperes (A)? (a) current (b) the push of a cell (c) power (d) how much a part resists
3. 3.📏 Which unit measures the push of a cell? (a) volt (V) (b) ohm (Ω) (c) ampere (A) (d) watt (W)
4. 4.📏 In the water-pipe picture of a circuit, voltage is like … (a) the pipe colour (b) the tap handle (c) the water tank lid (d) the water pressure
5. 5.True or false: the push of a cell is measured in volts (V). (a) False (b) True
6. 6.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
7. 7.True or false: energy used each second is measured in volts (V). (a) True (b) False
8. 8.📏 How many ohms (Ω) is 4.1 kΩ?
9. 9.True or false: the flow of charge is measured in amperes (A). (a) False (b) True
10. 10.📏 How many ohms (Ω) is 9.5 kΩ?
11. 11.True or false: voltage is measured in volts (V). (a) True (b) False
12. 12.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
13. 13.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
14. 14.📏 How many watts (W) is 4.3 kW?
15. 15.True or false: the ammeter is joined across a part. (a) False (b) True
16. 16.📏 Which unit measures voltage? (a) watt (W) (b) ampere (A) (c) ohm (Ω) (d) volt (V)
17. 17.📏 How many watts (W) is 1.1 kW?
18. 18.Which of these is measured in amperes (A)? (a) power (b) the flow of charge (c) energy used each second (d) voltage
19. 19.📏 Which unit measures current? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
20. 20.📏 Which unit measures power? (a) volt (V) (b) ampere (A) (c) ohm (Ω) (d) watt (W)
21. 21.True or false: energy used each second is measured in watts (W). (a) False (b) True
22. 22.Which of these is measured in ohms (Ω)? (a) current (b) the flow of charge (c) resistance (d) power
23. 23.📏 How many watts (W) is 0.2 kW?
24. 24.Which of these is measured in volts (V)? (a) resistance (b) energy used each second (c) the push of a cell (d) how much a part resists
25. 25.Which of these is measured in watts (W)? (a) voltage (b) energy used each second (c) how much a part resists (d) current
26. 26.Which of these is measured in volts (V)? (a) energy used each second (b) voltage (c) resistance (d) how much a part resists
27. 27.📏 In the water-pipe picture of a circuit, resistance is like … (a) a narrow pipe (b) a bigger tank (c) the water pressure (d) the flow of water
28. 28.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 60 (c) 10 (d) 100
29. 29.True or false: the voltmeter is joined across a part. (a) True (b) False
30. 30.📏 How many amperes (A) is 1510 mA? =
31. 31.📏 How many milliamperes (mA) is 0.63 A?
32. 32.True or false: the ammeter measures current. (a) True (b) False
33. 33.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 1000 (b) 10 (c) 100 (d) 1024
34. 34.📏 How many kilowatts (kW) is 950 W? =
35. 35.📏 How many kilo-ohms (kΩ) is 4800 Ω? =
36. 36.📏 How many milliamperes (mA) is 1.35 A?
37. 37.True or false: resistance is measured in ohms (Ω). (a) False (b) True
38. 38.📏 How many ohms (Ω) is 9.3 kΩ?
39. 39.📏 How many kilo-ohms (kΩ) is 5600 Ω? =
40. 40.True or false: resistance is measured in volts (V). (a) False (b) True

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