Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 194 · 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.🔋 Does a cell give electricity or use electricity? (a) uses electricity (b) gives electricity
2. 2.Which of these means the circuit is closed? (a) a wire has come loose (b) a wire is cut (c) all wires are joined (d) the switch is OFF
3. 3.🔋 6 identical 1.2 V cells are joined side by side in parallel (all + ends together, all − ends together). What is the voltage across them (in volts)? =
4. 4.Which of these is true of a series circuit? (a) each gets the full volts (b) a single current path (c) many paths for current (d) one out, the rest glow
5. 5.Which of these means the circuit is closed? (a) a wire is cut (b) the loop is complete (c) a wire has come loose (d) a cell is taken out
6. 6.True or false: a plastic ruler is a conductor. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) a buzzer (b) a siren (c) a loudspeaker (d) a torch
8. 8.True or false: a push button stays where you flip it. (a) True (b) False
9. 9.Which of these is an insulator? (a) a copper wire (b) a plastic straw (c) a brass key (d) a graphite rod
10. 10.🔋 Does a bicycle dynamo give electricity or use electricity? (a) uses electricity (b) gives electricity
11. 11.Which of these is safe? (a) dry your hands first (b) use mains for a project (c) touch a fallen wire (d) fly a kite near wires
12. 12.⚠️ Is it safe to use a cable with cuts? (a) not safe (b) safe
13. 13.💡 In a parallel circuit, one bulb breaks. What happens to the others? (a) they keep glowing (b) they explode (c) they get dimmer (d) they all go out
14. 14.True or false: to open a phone charger is safe. (a) True (b) False
15. 15.🔘 What does a switch do in a circuit? (a) stores current (b) changes the voltage (c) makes electricity (d) opens or closes the loop
16. 16.True or false: an electric drill mainly makes movement. (a) False (b) True
17. 17.🔦 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 copper wire. Does the bulb glow? (a) Yes (b) No
18. 18.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) never (b) only when both are OFF (c) only when both are ON (d) when either is ON
19. 19.⚡ A solar panel changes which kind of energy into electricity? (a) sound energy (b) chemical energy (c) wind energy (d) light energy
20. 20.True or false: “many paths for current” is true of a parallel circuit. (a) True (b) False
21. 21.🔦 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 paper strip. Does the bulb glow? (a) Yes (b) No
22. 22.💡 3 identical bulbs are joined in parallel across a 9 V battery (ideal wires). How many volts does each bulb get? =
23. 23.True or false: a small empty box is the symbol for a switch. (a) False (b) True
24. 24.Which drawing is the symbol for a capacitor? (a) two or more cell symbols (b) triangle against a bar (c) triangle, bar and arrows (d) two equal parallel lines
25. 25.Which of these mainly gives out heat? (a) a doorbell (b) a room heater (c) a torch (d) a school bell
26. 26.🔍 Which is the odd one out? (a) poke things in a socket (b) use small battery cells (c) take cells out after use (d) build with an adult near
27. 27.🔌 Is a ceramic cup a conductor or an insulator? (a) an insulator (b) a conductor
28. 28.🔍 Which is the odd one out? (a) an exhaust fan (b) a night lamp (c) a mixer grinder (d) an electric toy car
29. 29.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a plug top (b) a fuse or MCB (c) a long wire (d) a bulb
30. 30.Which drawing is the symbol for a battery? (a) a small empty box (b) triangle, bar and arrows (c) two or more cell symbols (d) a dot where wires meet
31. 31.True or false: “own switch for each bulb” is true of a series circuit. (a) False (b) True
32. 32.🔦 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
33. 33.🔌 Is a metal paper clip a conductor or an insulator? (a) an insulator (b) a conductor
34. 34.⚠️ Is it safe to keep drinks far away? (a) safe (b) not safe
35. 35.Which of these mainly gives out light? (a) an electric iron (b) a table fan (c) a night lamp (d) a mixer grinder
36. 36.⚠️ About how many volts do home sockets in India supply? (a) 230 V (b) 1.5 V (c) 12 V (d) 9 V
37. 37.🔋 Does a washing machine give electricity or use electricity? (a) uses electricity (b) gives electricity
38. 38.Which of these uses electricity? (a) a generator (b) a battery (c) a wind turbine (d) a washing machine
39. 39.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) a circle with A inside (c) a plain rectangle (d) a small empty box
40. 40.True or false: if a wire has come loose, the circuit is closed and current flows. (a) False (b) True

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