Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 800 · 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 street light mainly makes movement. (a) True (b) False
2. 2.🔋 Does a generator give electricity or use electricity? (a) gives electricity (b) uses electricity
3. 3.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) motor (c) wire (d) resistor
4. 4.💡 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. How many bulbs glow?
5. 5.🔘 A cell, a bulb and switches A, B, C and D are joined one after another in a single loop (series). A is OFF, B is OFF, C is OFF and D is OFF. Does the bulb glow? (a) Yes (b) No
6. 6.🔦 A circuit has a new cell, a bulb with a broken filament and a switch that is ON. All the wires are firmly joined. Does the bulb glow? (a) Yes (b) No
7. 7.Which of these is true of a series circuit? (a) many paths for current (b) each gets the full volts (c) bulbs share the voltage (d) own switch for each bulb
8. 8.True or false: a paper strip is a conductor. (a) False (b) True
9. 9.True or false: to touch a switch when wet is not safe. (a) False (b) True
10. 10.Which of these is true of a parallel circuit? (a) a single current path (b) one bulb out, all go out (c) own switch for each bulb (d) bulbs share the voltage
11. 11.🔘 Which kind of switch stays where you flip it? (a) a reed switch (b) a slide switch (c) a tilt switch (d) a toggle switch
12. 12.💡 5 identical bulbs are in parallel and each bulb has its own switch on its path. 4 of the switches are OFF and the rest are ON. How many bulbs glow?
13. 13.Which of these means the circuit is closed? (a) a wire has come loose (b) the switch is ON (c) the bulb is unscrewed (d) a cell is taken out
14. 14.💡 A battery lights 2 identical bulbs joined in parallel. One more identical bulb is added in parallel. How do the bulbs glow now? (a) brighter (b) the same (c) dimmer
15. 15.True or false: a line lifted at a gap is the symbol for a cell. (a) True (b) False
16. 16.🔦 A tester circuit has a new cell, a good bulb and wires with a gap between two clips. We put a graphite rod across the gap. Does the bulb glow? (a) No (b) Yes
17. 17.True or false: “one out, the rest glow” is true of a parallel circuit. (a) False (b) True
18. 18.Which of these is not safe? (a) dry your hands first (b) use small battery cells (c) fly kites in open fields (d) fly a kite near wires
19. 19.True or false: to open a phone charger is not safe. (a) True (b) False
20. 20.🔗 Series or parallel circuit: “many paths for current”? (a) series (b) parallel
21. 21.True or false: on a cell, “usually the red wire” means the − (negative) end. (a) False (b) True
22. 22.🔋 Does a solar panel give electricity or use electricity? (a) uses electricity (b) gives electricity
23. 23.🔌 Is a copper wire a conductor or an insulator? (a) a conductor (b) an insulator
24. 24.Which of these mainly makes movement? (a) a doorbell (b) a rice cooker (c) a ceiling fan (d) a buzzer
25. 25.What does a slide switch do? (a) closes near a magnet (b) closes when tipped over (c) works only while pressed (d) slides side to side
26. 26.🔁 Is the circuit closed or open if the loop is complete? (a) open (b) closed
27. 27.⚠️ Why must we never touch switches with wet hands? (a) it is just untidy (b) it spoils the paint (c) water carries current (d) water makes it cold
28. 28.🔍 Which is the odd one out? (a) use small battery cells (b) throw cells in a fire (c) fly kites in open fields (d) take cells out after use
29. 29.🔌 Is an iron nail a conductor or an insulator? (a) an insulator (b) a conductor
30. 30.🔋 On a cell, does “the end with a bump” mean the + end or the − end? (a) − (negative) (b) + (positive)
31. 31.True or false: “one bulb out, all go out” is true of a series circuit. (a) False (b) True
32. 32.True or false: a reed switch springs back when let go. (a) True (b) False
33. 33.True or false: if the bulb is unscrewed, the circuit is closed and current flows. (a) True (b) False
34. 34.True or false: “each gets the full volts” is true of a parallel circuit. (a) False (b) True
35. 35.What does a reed switch do? (a) springs back when let go (b) closes near a magnet (c) stays where you flip it (d) slides side to side
36. 36.🔋 Identical cells side by side (in parallel) give … (a) no voltage (b) double the voltage (c) half the voltage (d) the same voltage
37. 37.True or false: to keep drinks far away is safe. (a) False (b) True
38. 38.💡 2 identical bulbs are in parallel and each one takes 0.1 A. What total current (in amperes) comes from the battery? =
39. 39.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
40. 40.🔘 When a switch is ON, the circuit is … (a) open (b) cut (c) closed (d) broken

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids