Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 24 · 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.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) resistor (c) battery (d) capacitor
2. 2.True or false: a push button springs back when let go. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) an electric kettle (b) a mixer grinder (c) an exhaust fan (d) an electric toy car
4. 4.True or false: a loudspeaker mainly makes sound. (a) True (b) False
5. 5.True or false: “one bulb out, all go out” is true of a series circuit. (a) True (b) False
6. 6.🔗 Series or parallel circuit: “a single current path”? (a) series (b) parallel
7. 7.What does a toggle switch do? (a) closes near a magnet (b) flips up or down (c) closes when tipped over (d) slides side to side
8. 8.🔍 Which is the odd one out? (a) an electric kettle (b) a toaster (c) an exhaust fan (d) an electric iron
9. 9.Which of these mainly gives out light? (a) a rice cooker (b) a night lamp (c) a doorbell (d) an electric kettle
10. 10.True or false: a night lamp mainly makes movement. (a) False (b) True
11. 11.🔦 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 dry cork. Does the bulb glow? (a) No (b) Yes
12. 12.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) ammeter (c) junction (d) bulb
13. 13.🔌 Is a brass key a conductor or an insulator? (a) an insulator (b) a conductor
14. 14.Which drawing is the symbol for a resistor? (a) triangle, bar and arrows (b) a small empty box (c) two or more cell symbols (d) one tall, one short bar
15. 15.⚡ A solar panel changes which kind of energy into electricity? (a) chemical energy (b) sound energy (c) light energy (d) wind energy
16. 16.🔦 A tester circuit has a new cell, a good bulb and wires with a gap between two clips. We put a steel spoon across the gap. Does the bulb glow? (a) No (b) Yes
17. 17.🔘 A cell and a bulb are joined to 2 side-by-side paths with one switch on each path — A and B (parallel). A is ON and B is OFF. Does the bulb glow? (a) Yes (b) No
18. 18.Which of these is true of a series circuit? (a) a single current path (b) one out, the rest glow (c) used in house wiring (d) each gets the full volts
19. 19.Which of these is safe? (a) fly a kite near wires (b) dry your hands first (c) touch a fallen wire (d) use a cable with cuts
20. 20.What does a slide switch do? (a) closes near a magnet (b) works only while pressed (c) stays where you flip it (d) slides side to side
21. 21.🔌 Is a ceramic cup a conductor or an insulator? (a) a conductor (b) an insulator
22. 22.Which of these is not safe? (a) fly kites in open fields (b) touch a fallen wire (c) stay away from pylons (d) take cells out after use
23. 23.Which of these mainly makes sound? (a) a school bell (b) an electric kettle (c) a toaster (d) a ceiling fan
24. 24.🔦 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 ceramic cup. Does the bulb glow? (a) Yes (b) No
25. 25.💡 2 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 1 is taken out of its holder. Does bulb 2 glow? (a) No (b) Yes
26. 26.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe
27. 27.True or false: to open a phone charger is not safe. (a) False (b) True
28. 28.🔗 Series or parallel circuit: “bulbs share the voltage”? (a) series (b) parallel
29. 29.🔍 Which is the odd one out? (a) a ceiling fan (b) an electric drill (c) a loudspeaker (d) a mixer grinder
30. 30.💡 Old festival light strings went fully dark when one bulb failed. How were they joined? (a) not joined (b) by Wi-Fi (c) in series (d) in parallel
31. 31.🔍 Which is the odd one out? (a) dry your hands first (b) stay away from pylons (c) fly a kite near wires (d) use small battery cells
32. 32.Which of these uses electricity? (a) a power station (b) a generator (c) a washing machine (d) a solar panel
33. 33.⚡ What does a siren mainly change electricity into? (a) heat (b) sound (c) movement (d) light
34. 34.True or false: on a cell, “usually the red wire” means the + (positive) end. (a) False (b) True
35. 35.🔁 Is the circuit closed or open if the switch is ON? (a) closed (b) open
36. 36.💡 In a series circuit, how many paths does the current have? (a) one for each bulb (b) one (c) none (d) two
37. 37.Which drawing is the symbol for a capacitor? (a) a circle with an X in it (b) a line lifted at a gap (c) triangle against a bar (d) two equal parallel lines
38. 38.💡 A battery lights 2 identical bulbs joined in parallel. One more identical bulb is added in parallel. How do the bulbs glow now? (a) the same (b) brighter (c) dimmer
39. 39.True or false: “each gets the full volts” is true of a series circuit. (a) True (b) False
40. 40.🔦 A tester circuit has a new cell, a good bulb and wires with a gap between two clips. We put a plastic straw across the gap. Does the bulb glow? (a) Yes (b) No

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