Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 565 · 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.⚡ What does a room heater mainly change electricity into? (a) sound (b) movement (c) light (d) heat
2. 2.🔗 Series or parallel circuit: “own switch for each bulb”? (a) parallel (b) series
3. 3.Which of these mainly makes sound? (a) a traffic signal (b) a school bell (c) a rice cooker (d) an electric iron
4. 4.🔗 Series or parallel circuit: “bulbs share the voltage”? (a) series (b) parallel
5. 5.Which of these is not safe? (a) use small battery cells (b) stay away from pylons (c) stop if a part gets hot (d) touch a switch when wet
6. 6.What does a push button do? (a) works only while pressed (b) closes when tipped over (c) stays where you flip it (d) flips up or down
7. 7.🔋 What is a battery? (a) one single wire (b) two or more cells joined (c) a kind of bulb (d) a switch with a lid
8. 8.🔘 What does a switch do in a circuit? (a) opens or closes the loop (b) stores current (c) makes electricity (d) changes the voltage
9. 9.True or false: to take cells out after use is not safe. (a) True (b) False
10. 10.🔋 A 6 V battery and one 1.5 V cell are joined in series, all facing the same way. What is the total voltage (in volts)? =
11. 11.🔘 A cell, a bulb and switches A, B, C and D are joined one after another in a single loop (series). A is ON, B is ON, C is ON and D is ON. Does the bulb glow? (a) No (b) Yes
12. 12.⚡ What does a school bell mainly change electricity into? (a) heat (b) light (c) sound (d) movement
13. 13.True or false: a tilt switch closes when tipped over. (a) True (b) False
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) wire (b) motor (c) voltmeter (d) battery
15. 15.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe
16. 16.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
17. 17.True or false: a safety pin is a conductor. (a) True (b) False
18. 18.Which of these is true of a series circuit? (a) a break stops every bulb (b) many paths for current (c) own switch for each bulb (d) used in house wiring
19. 19.🔘 A cell and a bulb are joined to 2 side-by-side paths with one switch on each path — A and B (parallel). A is ON and B is ON. Does the bulb glow? (a) Yes (b) No
20. 20.Which of these is true of a series circuit? (a) many paths for current (b) a single current path (c) each gets the full volts (d) one out, the rest glow
21. 21.🔍 Which is the odd one out? (a) a steel spoon (b) a metal paper clip (c) aluminium foil (d) a rubber eraser
22. 22.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) when both are ON (c) never (d) when either is ON
23. 23.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
24. 24.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
25. 25.Which of these is safe? (a) fly a kite near wires (b) build with an adult near (c) use a cable with cuts (d) touch a fallen wire
26. 26.🔍 Which is the odd one out? (a) use mains for a project (b) use a cable with cuts (c) dry your hands first (d) touch a switch when wet
27. 27.⚡ A fan changes electrical energy mainly into which kind of energy? (a) chemical energy (b) movement energy (c) light energy (d) sound energy
28. 28.💡 A battery lights 5 identical bulbs joined in series. One more identical bulb is added in series. How do the bulbs glow now? (a) brighter (b) the same (c) dimmer
29. 29.Which of these is not safe? (a) stop if a part gets hot (b) use small battery cells (c) use a cable with cuts (d) build with an adult near
30. 30.🔦 A circuit has a new cell, a good bulb and a switch that is ON. One wire has come loose from the cell. A gap in one wire is bridged by a metal paper clip. Does the bulb glow? (a) No (b) Yes
31. 31.🔋 A 6 V battery and two 1.5 V cells are joined in series, all facing the same way. What is the total voltage (in volts)? =
32. 32.Which of these mainly makes movement? (a) a tube light (b) a room heater (c) an electric kettle (d) an electric toy car
33. 33.Which of these means the circuit is closed? (a) a cell is taken out (b) the switch is ON (c) the switch is OFF (d) a wire is cut
34. 34.Which of these is a conductor? (a) a ceramic cup (b) a copper wire (c) a dry cork (d) a rubber eraser
35. 35.🔋 Does a cell give electricity or use electricity? (a) gives electricity (b) uses electricity
36. 36.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) cell (c) junction (d) capacitor
37. 37.True or false: on a cell, “the longer symbol line” means the + (positive) end. (a) True (b) False
38. 38.🔋 Cells joined + to − in a row (series) give … (a) a bigger voltage (b) no voltage (c) the same voltage (d) a smaller voltage
39. 39.Which drawing is the symbol for a voltmeter? (a) a small empty box (b) a circle with a cross (c) two or more cell symbols (d) a circle with V inside
40. 40.🔁 Is the circuit closed or open if the switch is OFF? (a) open (b) closed

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