Electronics Worksheet: Voltage, Current and Resistance

Electronics lesson 11: Voltage, current and resistance · Set 791 · 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: how much a part resists is measured in ohms (Ω). (a) False (b) True
2. 2.📏 Voltmeter or ammeter: which one measures voltage? (a) voltmeter (b) ammeter
3. 3.📏 In the water-pipe picture of a circuit, voltage is like … (a) the water pressure (b) the tap handle (c) the pipe colour (d) the water tank lid
4. 4.Which of these is measured in amperes (A)? (a) current (b) the push of a cell (c) energy used each second (d) voltage
5. 5.📏 Which unit measures the push of a cell? (a) ampere (A) (b) volt (V) (c) ohm (Ω) (d) watt (W)
6. 6.True or false: resistance is measured in ohms (Ω). (a) True (b) False
7. 7.True or false: how much a part resists is measured in watts (W). (a) False (b) True
8. 8.True or false: energy used each second is measured in watts (W). (a) True (b) False
9. 9.Which of these is measured in amperes (A)? (a) the push of a cell (b) how much a part resists (c) the flow of charge (d) voltage
10. 10.📏 How many kilo-ohms (kΩ) is 6100 Ω? =
11. 11.Which of these is measured in ohms (Ω)? (a) voltage (b) energy used each second (c) resistance (d) the push of a cell
12. 12.True or false: the push of a cell is measured in watts (W). (a) False (b) True
13. 13.True or false: power is measured in watts (W). (a) True (b) False
14. 14.📏 How many amperes (A) is 2980 mA? =
15. 15.Which of these is measured in watts (W)? (a) the push of a cell (b) how much a part resists (c) voltage (d) power
16. 16.Which of these is measured in ohms (Ω)? (a) voltage (b) current (c) how much a part resists (d) the flow of charge
17. 17.Which of these is measured in volts (V)? (a) how much a part resists (b) power (c) current (d) the push of a cell
18. 18.True or false: current is measured in volts (V). (a) True (b) False
19. 19.📏 Which unit measures current? (a) ohm (Ω) (b) volt (V) (c) watt (W) (d) ampere (A)
20. 20.True or false: the ammeter is joined across a part. (a) False (b) True
21. 21.📏 How many kilo-ohms (kΩ) is 2600 Ω? =
22. 22.True or false: the ammeter measures current. (a) False (b) True
23. 23.📏 How many kilowatts (kW) is 900 W? =
24. 24.📏 In the water-pipe picture of a circuit, resistance is like … (a) the flow of water (b) a narrow pipe (c) the water pressure (d) a bigger tank
25. 25.📏 How many milliamperes (mA) is 2.22 A?
26. 26.📏 Which unit measures how much a part resists? (a) ampere (A) (b) watt (W) (c) volt (V) (d) ohm (Ω)
27. 27.True or false: the ammeter is joined in series. (a) True (b) False
28. 28.📏 How many kilowatts (kW) is 2400 W? =
29. 29.📏 Voltmeter or ammeter: which one is joined in series? (a) ammeter (b) voltmeter
30. 30.📏 How many milliamperes (mA) make 1 ampere? (a) 1000 (b) 10 (c) 60 (d) 100
31. 31.True or false: the voltmeter is joined in series. (a) True (b) False
32. 32.📏 How many amperes (A) is 840 mA? =
33. 33.📏 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
34. 34.📏 How many kilo-ohms (kΩ) is 2400 Ω? =
35. 35.📏 How many watts (W) is 4.4 kW?
36. 36.📏 Which unit measures resistance? (a) watt (W) (b) ohm (Ω) (c) volt (V) (d) ampere (A)
37. 37.📏 Voltmeter or ammeter: which one measures current? (a) voltmeter (b) ammeter
38. 38.📏 Which unit measures voltage? (a) ohm (Ω) (b) watt (W) (c) ampere (A) (d) volt (V)
39. 39.Which of these is measured in watts (W)? (a) energy used each second (b) how much a part resists (c) the push of a cell (d) the flow of charge
40. 40.📏 How many kilo-ohms (kΩ) is 900 Ω? =

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