Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 871 · 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: voltage is measured in watts (W). (a) True (b) False
2. 2.True or false: current is measured in amperes (A). (a) True (b) False
3. 3.Which of these is measured in watts (W)? (a) current (b) resistance (c) power (d) how much a part resists
4. 4.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
5. 5.True or false: how much a part resists is measured in watts (W). (a) True (b) False
6. 6.📏 Which unit measures current? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
7. 7.Which of these is measured in ohms (Ω)? (a) voltage (b) energy used each second (c) resistance (d) current
8. 8.True or false: the push of a cell is measured in volts (V). (a) True (b) False
9. 9.📏 Voltmeter or ammeter: which one is joined in series? (a) voltmeter (b) ammeter
10. 10.True or false: current is measured in ohms (Ω). (a) True (b) False
11. 11.True or false: the flow of charge is measured in watts (W). (a) False (b) True
12. 12.📏 How many ohms (Ω) is 1.6 kΩ?
13. 13.📏 How many milliamperes (mA) is 0.73 A?
14. 14.Which of these is measured in volts (V)? (a) the flow of charge (b) current (c) voltage (d) resistance
15. 15.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water tank lid (b) the tap handle (c) the pipe colour (d) the water pressure
16. 16.📏 How many milliamperes (mA) is 2.94 A?
17. 17.📏 Voltmeter or ammeter: which one is joined across a part? (a) ammeter (b) voltmeter
18. 18.True or false: how much a part resists is measured in amperes (A). (a) False (b) True
19. 19.Which of these is measured in ohms (Ω)? (a) the push of a cell (b) voltage (c) how much a part resists (d) energy used each second
20. 20.📏 Voltmeter or ammeter: which one measures voltage? (a) ammeter (b) voltmeter
21. 21.True or false: the ammeter is joined across a part. (a) True (b) False
22. 22.True or false: the ammeter measures current. (a) False (b) True
23. 23.Which of these is measured in volts (V)? (a) energy used each second (b) the push of a cell (c) the flow of charge (d) current
24. 24.True or false: the ammeter measures voltage. (a) False (b) True
25. 25.📏 How many amperes (A) is 950 mA? =
26. 26.Which of these is measured in watts (W)? (a) resistance (b) how much a part resists (c) energy used each second (d) voltage
27. 27.📏 How many milliamperes (mA) is 1.16 A?
28. 28.📏 Which unit measures resistance? (a) ohm (Ω) (b) volt (V) (c) ampere (A) (d) watt (W)
29. 29.True or false: energy used each second is measured in watts (W). (a) False (b) True
30. 30.📏 Which unit measures power? (a) ampere (A) (b) ohm (Ω) (c) watt (W) (d) volt (V)
31. 31.📏 How many milliamperes (mA) is 1.23 A?
32. 32.📏 Which unit measures the push of a cell? (a) watt (W) (b) volt (V) (c) ampere (A) (d) ohm (Ω)
33. 33.📏 How many kilowatts (kW) is 1450 W? =
34. 34.True or false: current is measured in volts (V). (a) True (b) False
35. 35.📏 How many kilo-ohms (kΩ) is 5100 Ω? =
36. 36.📏 How many ohms make 1 kilo-ohm (kΩ)? (a) 100 (b) 10 (c) 1024 (d) 1000
37. 37.True or false: energy used each second is measured in ohms (Ω). (a) True (b) False
38. 38.📏 How many milliamperes (mA) is 1.51 A?
39. 39.📏 How many kilo-ohms (kΩ) is 5900 Ω? =
40. 40.📏 How many kilo-ohms (kΩ) is 1800 Ω? =

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