Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 926 · 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 plastic straw is a conductor. (a) False (b) True
2. 2.💡 2 identical bulbs are in parallel and each one takes 0.25 A. What total current (in amperes) comes from the battery? =
3. 3.🔘 Which kind of switch flips up or down? (a) a reed switch (b) a push button (c) a toggle switch (d) a slide switch
4. 4.True or false: if the bulb is unscrewed, the circuit is closed and current flows. (a) True (b) False
5. 5.🔌 Is a glass marble a conductor or an insulator? (a) a conductor (b) an insulator
6. 6.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) bulb (c) ammeter (d) resistor
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) motor (b) voltmeter (c) wire (d) battery
8. 8.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
9. 9.🔌 Is a paper strip a conductor or an insulator? (a) an insulator (b) a conductor
10. 10.🔋 What is a battery? (a) a switch with a lid (b) one single wire (c) two or more cells joined (d) a kind of bulb
11. 11.🔦 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 rubber eraser. Does the bulb glow? (a) Yes (b) No
12. 12.🔁 What must there be for a current to flow? (a) one loose end (b) a complete loop (c) a broken path (d) a plastic gap
13. 13.🔦 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 paper strip. Does the bulb glow? (a) No (b) Yes
14. 14.🔍 Which is the odd one out? (a) take cells out after use (b) stop if a part gets hot (c) use mains for a project (d) dry your hands first
15. 15.🔗 Series or parallel circuit: “one bulb out, all go out”? (a) parallel (b) series
16. 16.True or false: a slide switch closes when tipped over. (a) False (b) True
17. 17.💡 In a series circuit, how many paths does the current have? (a) one (b) none (c) two (d) one for each bulb
18. 18.🔘 Which kind of switch stays where you flip it? (a) a toggle switch (b) a slide switch (c) a tilt switch (d) a push button
19. 19.Which of these is true of a series circuit? (a) each gets the full volts (b) own switch for each bulb (c) one bulb out, all go out (d) one out, the rest glow
20. 20.🔋 Does a water pump give electricity or use electricity? (a) uses electricity (b) gives electricity
21. 21.🔌 Is a steel coin a conductor or an insulator? (a) an insulator (b) a conductor
22. 22.Which of these means the circuit is closed? (a) the bulb is unscrewed (b) all wires are joined (c) the switch is OFF (d) a wire has come loose
23. 23.Which of these is true of a series circuit? (a) bulbs share the voltage (b) used in house wiring (c) each gets the full volts (d) one out, the rest glow
24. 24.Which of these means the circuit is closed? (a) the bulb is unscrewed (b) the switch is ON (c) a wire has come loose (d) the switch is OFF
25. 25.🔍 Which is the odd one out? (a) a cotton thread (b) aluminium foil (c) a safety pin (d) an iron nail
26. 26.Which drawing is the symbol for a wire? (a) a circle with a cross (b) two or more cell symbols (c) a circle with V inside (d) a straight line
27. 27.Which drawing is the symbol for a battery? (a) two equal parallel lines (b) a dot where wires meet (c) triangle against a bar (d) two or more cell symbols
28. 28.True or false: a paper strip is a conductor. (a) True (b) False
29. 29.⚠️ Is it safe to stop if a part gets hot? (a) safe (b) not safe
30. 30.🔋 A 6 V battery and four 1.5 V cells are joined in series, all facing the same way. What is the total voltage (in volts)? =
31. 31.💡 4 identical bulbs are joined in series with a 6 V battery (ideal wires). How many volts does each bulb get? =
32. 32.Which of these is true of a series circuit? (a) used in house wiring (b) one out, the rest glow (c) a break stops every bulb (d) each gets the full volts
33. 33.What does a toggle switch do? (a) springs back when let go (b) closes when tipped over (c) works only while pressed (d) flips up or down
34. 34.True or false: a push button closes when tipped over. (a) True (b) False
35. 35.🔦 A tester circuit has a new cell, a good bulb and wires with a gap between two clips. We put a cotton thread across the gap. Does the bulb glow? (a) No (b) Yes
36. 36.🔍 Which is the odd one out? (a) a safety pin (b) an iron nail (c) a rubber band (d) a steel spoon
37. 37.Which drawing is the symbol for a cell? (a) a long and a short line (b) a straight line (c) a line lifted at a gap (d) a circle with a cross
38. 38.🔍 Which is the odd one out? (a) use small battery cells (b) fly kites in open fields (c) dry your hands first (d) touch a switch when wet
39. 39.🔘 Switch A is on the main wire next to the cell and the bulb; then the wire splits into two side-by-side paths, one with switch B and one with switch C. A is OFF, B is OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
40. 40.True or false: a slide switch slides side to side. (a) False (b) True

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