Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 704 · 40 questions

Remember (Find the topic, use the idea): Find the topic: energy, safety, conductor, closed loop, switches, cells, symbols, series or parallel. Use that lesson’s idea — complete loop, all ON for series, cells add up, one path or many. For sums, write the working and check it again.

1. 1.True or false: a torch mainly makes sound. (a) False (b) True
2. 2.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
3. 3.⚡ A fan changes electrical energy mainly into which kind of energy? (a) movement energy (b) chemical energy (c) light energy (d) sound energy
4. 4.🔍 Which is the odd one out? (a) a plastic ruler (b) aluminium foil (c) a wooden stick (d) a rubber band
5. 5.🔋 A 12 V battery and one 1.5 V cell are joined in series, all facing the same way. What is the total voltage (in volts)? =
6. 6.True or false: “used in house wiring” is true of a parallel circuit. (a) False (b) True
7. 7.True or false: to use small battery cells is not safe. (a) True (b) False
8. 8.True or false: an electric kettle mainly makes sound. (a) False (b) True
9. 9.True or false: “one bulb out, all go out” is true of a series circuit. (a) True (b) False
10. 10.💡 3 identical bulbs are joined in series with a 9 V battery (ideal wires). How many volts does each bulb get? =
11. 11.True or false: if a wire has come loose, the circuit is open and no current flows. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) a torch (b) a ceiling fan (c) a tube light (d) an LED lamp
13. 13.🔁 Is the circuit closed or open if all wires are joined? (a) open (b) closed
14. 14.🔦 A circuit has a new cell, a bulb with a broken filament and a switch that is ON. All the wires are firmly joined. A gap in one wire is bridged by a safety pin. Does the bulb glow? (a) Yes (b) No
15. 15.True or false: “bulbs share the voltage” is true of a series circuit. (a) True (b) False
16. 16.🔋 Does a bicycle dynamo give electricity or use electricity? (a) gives electricity (b) uses electricity
17. 17.💡 3 identical bulbs are joined in parallel across a 12 V battery (ideal wires). How many volts does each bulb get? =
18. 18.True or false: “one bulb out, all go out” is true of a parallel circuit. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) a copper wire (b) a rubber band (c) a wooden stick (d) a ceramic cup
20. 20.True or false: a night lamp mainly makes movement. (a) False (b) True
21. 21.Which of these means the circuit is closed? (a) the bulb is unscrewed (b) all wires are joined (c) a wire has come loose (d) a wire is cut
22. 22.True or false: a reed switch stays where you flip it. (a) True (b) False
23. 23.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
24. 24.True or false: a toggle switch stays where you flip it. (a) False (b) True
25. 25.What does a toggle switch do? (a) works only while pressed (b) slides side to side (c) closes when tipped over (d) stays where you flip it
26. 26.🔘 Which kind of switch stays where you flip it? (a) a toggle switch (b) a slide switch (c) a push button (d) a tilt switch
27. 27.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) diode (c) motor (d) cell
28. 28.True or false: on a cell, “usually the black wire” means the + (positive) end. (a) False (b) True
29. 29.🔦 A circuit has a new cell, a good bulb and a switch that is ON. All the wires are firmly joined. A gap in one wire is bridged by a safety pin. Does the bulb glow? (a) No (b) Yes
30. 30.🔋 6 identical 2 V cells are joined in series (+ of one cell to − of the next). What is the total voltage (in volts)? =
31. 31.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) diode (c) switch (d) battery
32. 32.True or false: to poke things in a socket is not safe. (a) False (b) True
33. 33.🔦 A circuit has a new cell, a good bulb and a switch that is ON. All the wires are firmly joined. A gap in one wire is bridged by a paper strip. Does the bulb glow? (a) Yes (b) No
34. 34.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
35. 35.True or false: “bulbs share the voltage” is true of a parallel circuit. (a) True (b) False
36. 36.True or false: “a break stops every bulb” is true of a parallel circuit. (a) False (b) True
37. 37.True or false: a siren mainly makes sound. (a) True (b) False
38. 38.⚠️ Is it safe to dry your hands first? (a) safe (b) not safe
39. 39.🔋 Cells joined + to − in a row (series) give … (a) a bigger voltage (b) no voltage (c) a smaller voltage (d) the same voltage
40. 40.💡 In a series circuit, how many paths does the current have? (a) one (b) none (c) two (d) one for each bulb

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