Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 107 · 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 of these is safe? (a) fly a kite near wires (b) touch a switch when wet (c) stay away from pylons (d) climb an electric pole
2. 2.🔘 Which kind of switch slides side to side? (a) a push button (b) a reed switch (c) a slide switch (d) a toggle switch
3. 3.Which of these mainly makes movement? (a) an electric kettle (b) a doorbell (c) a table fan (d) a loudspeaker
4. 4.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) many long-short pairs (c) two or more cell symbols (d) one tall, one short bar
5. 5.🔘 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
6. 6.Which of these is true of a parallel circuit? (a) one bulb out, all go out (b) a break stops every bulb (c) bulbs share the voltage (d) each gets the full volts
7. 7.🔍 Which is the odd one out? (a) a mixer grinder (b) an electric kettle (c) a room heater (d) an electric iron
8. 8.Which of these is safe? (a) fly a kite near wires (b) open a phone charger (c) use a cable with cuts (d) keep drinks far away
9. 9.🔋 A 9 V battery and two 1.5 V cells are joined in series, all facing the same way. What is the total voltage (in volts)? =
10. 10.🔦 A tester circuit has a new cell, a good bulb and wires with a gap between two clips. We put a rubber eraser across the gap. Does the bulb glow? (a) No (b) Yes
11. 11.🔋 A 12 V battery and two 1.5 V cells are joined in series, all facing the same way. What is the total voltage (in volts)? =
12. 12.🔘 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 ON and C is OFF. Does the bulb glow? (a) No (b) Yes
13. 13.True or false: “one bulb out, all go out” is true of a parallel circuit. (a) True (b) False
14. 14.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
15. 15.🔋 Does a cell give electricity or use electricity? (a) gives electricity (b) uses electricity
16. 16.True or false: a circle with a cross is the symbol for a junction. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) a rubber band (b) aluminium foil (c) a ceramic cup (d) a rubber eraser
18. 18.⚠️ Is it safe to fly kites in open fields? (a) not safe (b) safe
19. 19.💡 4 identical bulbs are joined in parallel across a 9 V battery (ideal wires). How many volts does each bulb get? =
20. 20.⚠️ Is it safe to stop if a part gets hot? (a) not safe (b) safe
21. 21.🔁 A bulb has two contacts. How many must be joined into the loop for it to glow? (a) both of them (b) it does not matter (c) none (d) only one
22. 22.🔌 Is a plastic ruler a conductor or an insulator? (a) an insulator (b) a conductor
23. 23.🔍 Which is the odd one out? (a) a brass key (b) a paper strip (c) a dry cork (d) a ceramic cup
24. 24.True or false: a wooden stick is an insulator. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) a glass marble (b) a woollen thread (c) a plastic straw (d) a copper wire
26. 26.🔋 How many volts does one ordinary torch cell give? (a) 230 V (b) 0.5 V (c) 1.5 V (d) 15 V
27. 27.True or false: “each gets the full volts” is true of a parallel circuit. (a) False (b) True
28. 28.Which drawing is the symbol for a motor? (a) many long-short pairs (b) a circle with M inside (c) two or more cell symbols (d) triangle against a bar
29. 29.Which of these is a conductor? (a) a woollen thread (b) a ceramic cup (c) a rubber eraser (d) a safety pin
30. 30.💡 6 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 5 is taken out of its holder. How many bulbs glow?
31. 31.Which of these is a conductor? (a) a graphite rod (b) a ceramic cup (c) a wooden stick (d) a paper strip
32. 32.Which of these means the circuit is open? (a) the switch is ON (b) all wires are joined (c) the loop is complete (d) the bulb is unscrewed
33. 33.Which of these gives us electricity? (a) a water pump (b) a washing machine (c) a television (d) a cell
34. 34.🔍 Which is the odd one out? (a) a steel coin (b) a woollen thread (c) a plastic ruler (d) a cotton thread
35. 35.🔁 Is the circuit closed or open if all wires are joined? (a) open (b) closed
36. 36.⚠️ Is it safe to climb an electric pole? (a) safe (b) not safe
37. 37.True or false: a toggle switch flips up or down. (a) True (b) False
38. 38.Which of these is safe? (a) poke things in a socket (b) use mains for a project (c) dry your hands first (d) fly a kite near wires
39. 39.💡 In a series circuit, how many paths does the current have? (a) one (b) two (c) one for each bulb (d) none
40. 40.🔋 4 identical 1.5 V cells are joined in series, but one of them is put in the wrong way round. What is the total voltage now (in volts)? =

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