Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 376 · 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.⚡ A bicycle dynamo changes which kind of energy into electricity? (a) light energy (b) chemical energy (c) movement energy (d) sound energy
2. 2.🔗 Series or parallel circuit: “bulbs share the voltage”? (a) parallel (b) series
3. 3.🔌 Is a ceramic cup a conductor or an insulator? (a) a conductor (b) an insulator
4. 4.⚠️ Is it safe to touch a fallen wire? (a) not safe (b) safe
5. 5.🔘 Which kind of switch stays where you flip it? (a) a push button (b) a slide switch (c) a toggle switch (d) a reed switch
6. 6.🔘 A cell and a bulb are joined to two side-by-side paths: path 1 has switches A and B one after another, path 2 has switch C. A is OFF, B is OFF and C is ON. Does the bulb glow? (a) Yes (b) No
7. 7.Which drawing is the symbol for a wire? (a) triangle, bar and arrows (b) two or more cell symbols (c) a long and a short line (d) a straight line
8. 8.💡 4 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 3 is taken out of its holder. Does bulb 1 glow? (a) No (b) Yes
9. 9.🔘 Which kind of switch slides side to side? (a) a push button (b) a toggle switch (c) a tilt switch (d) a slide switch
10. 10.💡 2 identical bulbs are joined in series with a 2 V battery (ideal wires). How many volts does each bulb get? =
11. 11.True or false: on a cell, “the longer symbol line” means the + (positive) end. (a) True (b) False
12. 12.⚠️ Is it safe to dry your hands first? (a) not safe (b) safe
13. 13.Which of these is a conductor? (a) a rubber eraser (b) a steel coin (c) a woollen thread (d) a cotton thread
14. 14.Which drawing is the symbol for an ammeter? (a) two or more cell symbols (b) a circle with a cross (c) a straight line (d) a circle with A inside
15. 15.Which of these mainly gives out heat? (a) a siren (b) a night lamp (c) a traffic signal (d) a room heater
16. 16.🔁 A bulb has two contacts. How many must be joined into the loop for it to glow? (a) both of them (b) only one (c) it does not matter (d) none
17. 17.🔌 Which metal is used for most electric wires at home? (a) copper (b) plastic (c) rubber (d) glass
18. 18.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
19. 19.🔦 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 rubber eraser. Does the bulb glow? (a) No (b) Yes
20. 20.🔦 A tester circuit has a new cell, a good bulb and wires with a gap between two clips. We put a wooden stick across the gap. Does the bulb glow? (a) No (b) Yes
21. 21.🔋 On a cell, does “usually the red wire” mean the + end or the − end? (a) − (negative) (b) + (positive)
22. 22.Which of these uses electricity? (a) a computer (b) a wind turbine (c) a solar panel (d) a power station
23. 23.Which drawing is the symbol for a cell? (a) a circle with M inside (b) two equal parallel lines (c) a long and a short line (d) a circle with A inside
24. 24.Which of these is not safe? (a) stay away from pylons (b) climb an electric pole (c) fly kites in open fields (d) dry your hands first
25. 25.True or false: “each gets the full volts” is true of a parallel circuit. (a) True (b) False
26. 26.True or false: if a wire has come loose, the circuit is closed and current flows. (a) True (b) False
27. 27.🔌 Is a steel spoon a conductor or an insulator? (a) an insulator (b) a conductor
28. 28.Which of these gives us electricity? (a) a mobile phone (b) a washing machine (c) a solar panel (d) a water pump
29. 29.🔘 Which kind of switch closes near a magnet? (a) a push button (b) a reed switch (c) a tilt switch (d) a slide switch
30. 30.🔌 Is a metal paper clip a conductor or an insulator? (a) a conductor (b) an insulator
31. 31.True or false: “own switch for each bulb” is true of a series circuit. (a) True (b) False
32. 32.🔁 Is the circuit closed or open if a wire is cut? (a) closed (b) open
33. 33.🔍 Which is the odd one out? (a) a steel spoon (b) a wooden stick (c) a brass key (d) a metal paper clip
34. 34.True or false: many long-short pairs is the symbol for a wire. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) use mains for a project (b) open a phone charger (c) use small battery cells (d) touch a switch when wet
36. 36.🔍 Which is the odd one out? (a) dry your hands first (b) stop if a part gets hot (c) use small battery cells (d) throw cells in a fire
37. 37.True or false: a paper strip is an insulator. (a) True (b) False
38. 38.⚠️ Is it safe to stay away from pylons? (a) not safe (b) safe
39. 39.⚡ Which tiny particles drift along a metal wire to carry the current? (a) dust particles (b) electrons (c) photons (d) water drops
40. 40.🔘 Which kind of switch closes when tipped over? (a) a reed switch (b) a slide switch (c) a push button (d) a tilt switch

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