Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 315 · 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.🔗 Series or parallel circuit: “bulbs share the voltage”? (a) parallel (b) series
2. 2.🔁 Is the circuit closed or open if all wires are joined? (a) open (b) closed
3. 3.🔍 Which is the odd one out? (a) an electric drill (b) a room heater (c) an electric kettle (d) a toaster
4. 4.Which of these is true of a series circuit? (a) own switch for each bulb (b) one out, the rest glow (c) a break stops every bulb (d) used in house wiring
5. 5.True or false: a steel spoon is a conductor. (a) True (b) False
6. 6.💡 6 identical bulbs are in parallel and each bulb has its own switch on its path. 5 of the switches are OFF and the rest are ON. How many bulbs glow?
7. 7.Which drawing is the symbol for a battery? (a) triangle against a bar (b) triangle, bar and arrows (c) two or more cell symbols (d) a circle with M inside
8. 8.Which of these is safe? (a) use a cable with cuts (b) stay away from pylons (c) poke things in a socket (d) climb an electric pole
9. 9.True or false: a circle with A inside is the symbol for a wire. (a) True (b) False
10. 10.True or false: on a cell, “usually the red wire” means the − (negative) end. (a) True (b) False
11. 11.🔋 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)? =
12. 12.🔘 A cell and a bulb are joined to 4 side-by-side paths with one switch on each path — A, B, C and D (parallel). A is OFF, B is OFF, C is OFF and D is OFF. Does the bulb glow? (a) No (b) Yes
13. 13.💡 Old festival light strings went fully dark when one bulb failed. How were they joined? (a) in series (b) in parallel (c) by Wi-Fi (d) not joined
14. 14.🔦 A tester circuit has a new cell, a good bulb and wires with a gap between two clips. We put a steel coin across the gap. Does the bulb glow? (a) Yes (b) No
15. 15.🔌 Which metal is used for most electric wires at home? (a) rubber (b) plastic (c) copper (d) glass
16. 16.🔘 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
17. 17.True or false: “each gets the full volts” is true of a series circuit. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) a buzzer (b) an electric toy car (c) a school bell (d) a siren
19. 19.Which of these uses electricity? (a) a solar panel (b) a refrigerator (c) a power station (d) a cell
20. 20.🔋 3 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)? =
21. 21.True or false: a small empty box is the symbol for a bulb. (a) True (b) False
22. 22.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
23. 23.Which of these gives us electricity? (a) a computer (b) a mobile phone (c) a solar panel (d) a washing machine
24. 24.🔌 Which part of a screwdriver should an electrician hold? (a) the plastic handle (b) the metal tip (c) the bare end (d) the steel shaft
25. 25.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
26. 26.True or false: a small empty box is the symbol for a switch. (a) True (b) False
27. 27.⚡ What does a loudspeaker mainly change electricity into? (a) light (b) movement (c) sound (d) heat
28. 28.🔋 Does a wind turbine give electricity or use electricity? (a) uses electricity (b) gives electricity
29. 29.🔍 Which is the odd one out? (a) a copper wire (b) a plastic straw (c) a woollen thread (d) a ceramic cup
30. 30.🔋 Does a solar panel give electricity or use electricity? (a) uses electricity (b) gives electricity
31. 31.🔘 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 ON, B is OFF and C is ON. Does the bulb glow? (a) No (b) Yes
32. 32.🔍 Which is the odd one out? (a) a dry cork (b) a cotton thread (c) a rubber band (d) aluminium foil
33. 33.🔋 Identical cells side by side (in parallel) give … (a) half the voltage (b) double the voltage (c) no voltage (d) the same voltage
34. 34.What does a toggle switch do? (a) springs back when let go (b) closes near a magnet (c) stays where you flip it (d) closes when tipped over
35. 35.Which of these means the circuit is open? (a) all wires are joined (b) a wire has come loose (c) the loop is complete (d) the switch is ON
36. 36.🔦 A tester circuit has a new cell, a good bulb and wires with a gap between two clips. We put a metal paper clip across the gap. Does the bulb glow? (a) Yes (b) No
37. 37.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) LED (c) ammeter (d) bulb
38. 38.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
39. 39.True or false: to keep drinks far away is not safe. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) climb an electric pole (b) stay away from pylons (c) fly a kite near wires (d) poke things in a socket

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