Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 244 · 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.💡 2 identical bulbs are joined in series with a 6 V battery (ideal wires). How many volts does each bulb get? =
2. 2.🔍 Which is the odd one out? (a) a traffic signal (b) a mixer grinder (c) an electric drill (d) an exhaust fan
3. 3.🔍 Which is the odd one out? (a) a traffic signal (b) a street light (c) a night lamp (d) an electric drill
4. 4.🔌 Which part of a screwdriver should an electrician hold? (a) the plastic handle (b) the bare end (c) the steel shaft (d) the metal tip
5. 5.Which of these is a conductor? (a) a copper wire (b) a dry cork (c) a plastic straw (d) a wooden stick
6. 6.True or false: “bulbs share the voltage” is true of a series circuit. (a) False (b) True
7. 7.Which of these is an insulator? (a) a safety pin (b) a brass key (c) a cotton thread (d) a graphite rod
8. 8.🔋 Does a solar panel give electricity or use electricity? (a) gives electricity (b) uses electricity
9. 9.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) capacitor (c) motor (d) battery
10. 10.🔌 Why are electric wires covered in plastic? (a) plastic is a conductor (b) plastic makes current (c) plastic is an insulator (d) to make them heavy
11. 11.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) junction (c) switch (d) cell
12. 12.Which of these is true of a series circuit? (a) each gets the full volts (b) used in house wiring (c) a break stops every bulb (d) many paths for current
13. 13.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) bulb (c) junction (d) battery
14. 14.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) when either is ON (b) only when both are OFF (c) never (d) only when both are ON
15. 15.⚡ A solar panel changes which kind of energy into electricity? (a) chemical energy (b) light energy (c) wind energy (d) sound energy
16. 16.Which drawing is the symbol for an ammeter? (a) a circle with an X in it (b) two equal parallel lines (c) a straight line (d) a circle with A inside
17. 17.True or false: to touch a switch when wet is not safe. (a) True (b) False
18. 18.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
19. 19.🔁 What must there be for a current to flow? (a) a broken path (b) a plastic gap (c) one loose end (d) a complete loop
20. 20.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
21. 21.True or false: two or more cell symbols is the symbol for a motor. (a) True (b) False
22. 22.True or false: to fly a kite near wires is safe. (a) False (b) True
23. 23.💡 3 identical bulbs are in parallel and each bulb has its own switch on its path. 1 of the switches is OFF and the rest are ON. How many bulbs glow?
24. 24.Which of these mainly gives out light? (a) an exhaust fan (b) a siren (c) an electric iron (d) a traffic signal
25. 25.🔋 Does a generator give electricity or use electricity? (a) uses electricity (b) gives electricity
26. 26.Which of these is not safe? (a) stay away from pylons (b) touch a fallen wire (c) dry your hands first (d) keep drinks far away
27. 27.Which of these means the circuit is closed? (a) a wire is cut (b) a cell is taken out (c) all wires are joined (d) a wire has come loose
28. 28.💡 3 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 2 is taken out of its holder. How many bulbs glow?
29. 29.🔌 Is a glass marble a conductor or an insulator? (a) an insulator (b) a conductor
30. 30.💡 2 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 2 is taken out of its holder. How many bulbs glow?
31. 31.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a circle with M inside (c) a circle with an X in it (d) two equal parallel lines
32. 32.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) voltmeter (c) ammeter (d) battery
33. 33.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
34. 34.🔁 Is the circuit closed or open if the bulb is unscrewed? (a) open (b) closed
35. 35.🔋 Identical cells side by side (in parallel) give … (a) half the voltage (b) double the voltage (c) no voltage (d) the same voltage
36. 36.True or false: to touch a fallen wire is safe. (a) True (b) False
37. 37.🔋 What is a battery? (a) a kind of bulb (b) two or more cells joined (c) one single wire (d) a switch with a lid
38. 38.🔋 Cells joined + to − in a row (series) give … (a) no voltage (b) a smaller voltage (c) the same voltage (d) a bigger voltage
39. 39.🔋 A 9 V battery and one 1.5 V cell are joined in series, all facing the same way. What is the total voltage (in volts)? =
40. 40.💡 5 identical bulbs are joined in parallel across a 6 V battery (ideal wires). How many volts does each bulb get? =

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