Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 111 · 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 cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
2. 2.Which of these mainly gives out heat? (a) a loudspeaker (b) an electric drill (c) an electric kettle (d) a doorbell
3. 3.🔘 Which kind of switch springs back when let go? (a) a toggle switch (b) a push button (c) a tilt switch (d) a reed switch
4. 4.True or false: “each gets the full volts” is true of a series circuit. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) climb an electric pole (b) keep drinks far away (c) use small battery cells (d) stay away from pylons
6. 6.True or false: a toggle switch closes when tipped over. (a) False (b) True
7. 7.🔋 What is a battery? (a) a kind of bulb (b) a switch with a lid (c) one single wire (d) two or more cells joined
8. 8.True or false: “a single current path” is true of a parallel circuit. (a) True (b) False
9. 9.True or false: two equal parallel lines is the symbol for a bulb. (a) True (b) False
10. 10.Which of these uses electricity? (a) a wind turbine (b) a solar panel (c) a power station (d) a television
11. 11.💡 2 identical bulbs are joined in parallel across a 4.5 V battery (ideal wires). How many volts does each bulb get? =
12. 12.Which of these gives us electricity? (a) a washing machine (b) a generator (c) a computer (d) a water pump
13. 13.🔘 A cell, a bulb and switches A and B are joined one after another in a single loop (series). A is ON and B is OFF. Does the bulb glow? (a) Yes (b) No
14. 14.Which of these is true of a series circuit? (a) own switch for each bulb (b) used in house wiring (c) one bulb out, all go out (d) each gets the full volts
15. 15.🔘 What does a switch do in a circuit? (a) changes the voltage (b) stores current (c) opens or closes the loop (d) makes electricity
16. 16.What does a toggle switch do? (a) stays where you flip it (b) springs back when let go (c) closes near a magnet (d) works only while pressed
17. 17.⚡ What do we call a flow of electric charge through a wire? (a) a magnet (b) sound (c) friction (d) electric current
18. 18.💡 6 identical bulbs are joined in series with a battery and a closed switch on the main wire. All the bulbs are in place. Does bulb 1 glow? (a) No (b) Yes
19. 19.⚠️ Is it safe to take cells out after use? (a) not safe (b) safe
20. 20.True or false: on a cell, “the longer symbol line” means the + (positive) end. (a) False (b) True
21. 21.🔌 Which part of a screwdriver should an electrician hold? (a) the bare end (b) the plastic handle (c) the metal tip (d) the steel shaft
22. 22.🔌 Why are electric wires covered in plastic? (a) plastic is a conductor (b) to make them heavy (c) plastic is an insulator (d) plastic makes current
23. 23.🔍 Which is the odd one out? (a) use mains for a project (b) fly kites in open fields (c) throw cells in a fire (d) touch a switch when wet
24. 24.True or false: if the switch is ON, the circuit is open and no current flows. (a) True (b) False
25. 25.Which of these uses electricity? (a) a cell (b) a washing machine (c) a power station (d) a battery
26. 26.Which drawing is the symbol for a cell? (a) a circle with a cross (b) a long and a short line (c) triangle, bar and arrows (d) a circle with an X in it
27. 27.⚡ What does a torch mainly change electricity into? (a) movement (b) sound (c) light (d) heat
28. 28.Which of these is a conductor? (a) a plastic ruler (b) a woollen thread (c) a steel spoon (d) a wooden stick
29. 29.True or false: on a cell, “the flat end” means the + (positive) end. (a) True (b) False
30. 30.Which of these mainly makes movement? (a) an exhaust fan (b) a toaster (c) a siren (d) a water heater
31. 31.What does a slide switch do? (a) closes near a magnet (b) stays where you flip it (c) slides side to side (d) springs back when let go
32. 32.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) LED (b) wire (c) diode (d) junction
33. 33.🔋 Does a solar panel give electricity or use electricity? (a) gives electricity (b) uses electricity
34. 34.💡 In a series circuit, how many paths does the current have? (a) one for each bulb (b) two (c) none (d) one
35. 35.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) motor (c) switch (d) cell
36. 36.Which of these is a conductor? (a) a cotton thread (b) a copper wire (c) a rubber band (d) a paper strip
37. 37.Which of these is true of a parallel circuit? (a) many paths for current (b) one bulb out, all go out (c) bulbs share the voltage (d) a break stops every bulb
38. 38.🔘 When a switch is ON, the circuit is … (a) broken (b) open (c) cut (d) closed
39. 39.True or false: a toggle switch stays where you flip it. (a) True (b) False
40. 40.Which of these mainly makes movement? (a) an electric toy car (b) a traffic signal (c) a street light (d) a torch

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