Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 195 · 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.🔍 Which is the odd one out? (a) fly kites in open fields (b) dry your hands first (c) stop if a part gets hot (d) touch a switch when wet
2. 2.True or false: a buzzer mainly gives out heat. (a) True (b) False
3. 3.What does a toggle switch do? (a) flips up or down (b) closes when tipped over (c) springs back when let go (d) slides side to side
4. 4.Which of these is not safe? (a) take cells out after use (b) touch a switch when wet (c) keep drinks far away (d) build with an adult near
5. 5.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
6. 6.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
7. 7.💡 6 identical bulbs are in parallel and each bulb has its own switch on its path. 1 of the switches is OFF and the rest are ON. How many bulbs glow?
8. 8.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
9. 9.⚡ What does an electric kettle mainly change electricity into? (a) movement (b) heat (c) light (d) sound
10. 10.🔋 Identical cells side by side (in parallel) give … (a) no voltage (b) the same voltage (c) double the voltage (d) half the voltage
11. 11.True or false: “each gets the full volts” is true of a parallel circuit. (a) True (b) False
12. 12.True or false: a safety pin is an insulator. (a) False (b) True
13. 13.True or false: a plain rectangle is the symbol for a bulb. (a) True (b) False
14. 14.Which of these mainly makes sound? (a) an electric iron (b) an exhaust fan (c) a water heater (d) a buzzer
15. 15.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
16. 16.🔋 On a cell, does “the flat end” mean the + end or the − end? (a) + (positive) (b) − (negative)
17. 17.Which of these uses electricity? (a) an air conditioner (b) a cell (c) a generator (d) a bicycle dynamo
18. 18.🔌 Is a cotton thread a conductor or an insulator? (a) an insulator (b) a conductor
19. 19.💡 In a parallel circuit, one bulb breaks. What happens to the others? (a) they explode (b) they get dimmer (c) they keep glowing (d) they all go out
20. 20.🔋 Does a solar panel give electricity or use electricity? (a) gives electricity (b) uses electricity
21. 21.💡 2 identical bulbs are joined in parallel across a 6 V battery (ideal wires). How many volts does each bulb get? =
22. 22.🔘 Which kind of switch slides side to side? (a) a tilt switch (b) a slide switch (c) a toggle switch (d) a push button
23. 23.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a long and a short line (c) a circle with a cross (d) two equal parallel lines
24. 24.True or false: “many paths for current” is true of a parallel circuit. (a) True (b) False
25. 25.🔁 Is the circuit closed or open if a cell is taken out? (a) closed (b) open
26. 26.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a plug top (b) a bulb (c) a long wire (d) a fuse or MCB
27. 27.Which drawing is the symbol for a switch? (a) a circle with a cross (b) a circle with M inside (c) a circle with an X in it (d) a line lifted at a gap
28. 28.🔋 Does a wind turbine give electricity or use electricity? (a) gives electricity (b) uses electricity
29. 29.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
30. 30.Which of these is a conductor? (a) a rubber eraser (b) a brass key (c) a rubber band (d) a dry cork
31. 31.Which of these is not safe? (a) use small battery cells (b) build with an adult near (c) climb an electric pole (d) stay away from pylons
32. 32.Which drawing is the symbol for a diode? (a) a straight line (b) triangle against a bar (c) two or more cell symbols (d) a dot where wires meet
33. 33.Which of these is not safe? (a) open a phone charger (b) use small battery cells (c) fly kites in open fields (d) build with an adult near
34. 34.Which of these means the circuit is closed? (a) the switch is OFF (b) all wires are joined (c) a wire has come loose (d) the bulb is unscrewed
35. 35.🔋 A 3 V battery and four 1.5 V cells are joined in series, all facing the same way. What is the total voltage (in volts)? =
36. 36.💡 Old festival light strings went fully dark when one bulb failed. How were they joined? (a) in parallel (b) in series (c) by Wi-Fi (d) not joined
37. 37.🔋 On a cell, does “the end with a bump” mean the + end or the − end? (a) + (positive) (b) − (negative)
38. 38.Which of these is a conductor? (a) a rubber eraser (b) a plastic ruler (c) an iron nail (d) a cotton thread
39. 39.🔌 Is a graphite rod a conductor or an insulator? (a) an insulator (b) a conductor
40. 40.🔦 A circuit has a new cell, a good bulb and a switch that is ON. One wire has come loose from the cell. Does the bulb glow? (a) Yes (b) No

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