← Part 1 test: electricity basics lesson New set →

Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 521 · 40 questions
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.⚠️ Is it safe to use a cable with cuts? (a) safe (b) not safe
  2. 2.🔋 On a cell, does “usually the black wire” mean the + end or the − end? (a) − (negative) (b) + (positive)
  3. 3.True or false: “a break stops every bulb” is true of a parallel circuit. (a) True (b) False
  4. 4.True or false: a straight line is the symbol for a wire. (a) False (b) True
  5. 5.Which of these mainly gives out light? (a) a table fan (b) a buzzer (c) a mixer grinder (d) a street light
  6. 6.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) resistor (c) battery (d) voltmeter
  7. 7.🔦 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) No (b) Yes
  8. 8.🔌 Is a copper wire a conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🔍 Which is the odd one out? (a) fly kites in open fields (b) keep drinks far away (c) build with an adult near (d) poke things in a socket
  10. 10.True or false: one tall, one short bar is the symbol for a junction. (a) True (b) False
  11. 11.🔋 On a cell, does “the flat end” mean the + end or the − end? (a) + (positive) (b) − (negative)
  12. 12.🔌 Which metal is used for most electric wires at home? (a) glass (b) plastic (c) copper (d) rubber
  13. 13.True or false: a ceramic cup is an insulator. (a) False (b) True
  14. 14.True or false: to use a cable with cuts is safe. (a) True (b) False
  15. 15.🔌 Is an iron nail a conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.True or false: a plastic straw is an insulator. (a) False (b) True
  17. 17.🔍 Which is the odd one out? (a) a safety pin (b) a steel spoon (c) a paper strip (d) a steel coin
  18. 18.True or false: “bulbs share the voltage” is true of a parallel circuit. (a) False (b) True
  19. 19.True or false: on a cell, “the longer symbol line” means the + (positive) end. (a) False (b) True
  20. 20.⚠️ Someone is getting a shock and is still touching a wire. What should you do? (a) pull them by the hand (b) pour water on them (c) shout for an adult (d) wait and watch
  21. 21.💡 In a parallel circuit, one bulb breaks. What happens to the others? (a) they get dimmer (b) they explode (c) they all go out (d) they keep glowing
  22. 22.💡 6 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?
  23. 23.True or false: if the switch is ON, the circuit is closed and current flows. (a) True (b) False
  24. 24.True or false: to fly a kite near wires is safe. (a) True (b) False
  25. 25.💡 In a series circuit, how many paths does the current have? (a) none (b) one (c) one for each bulb (d) two
  26. 26.🔦 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
  27. 27.True or false: an iron nail is a conductor. (a) False (b) True
  28. 28.True or false: “one out, the rest glow” is true of a parallel circuit. (a) False (b) True
  29. 29.True or false: a toggle switch springs back when let go. (a) False (b) True
  30. 30.⚡ What does a water heater mainly change electricity into? (a) heat (b) sound (c) movement (d) light
  31. 31.💡 A battery lights 2 identical bulbs joined in series. One more identical bulb is added in series. How do the bulbs glow now? (a) the same (b) dimmer (c) brighter
  32. 32.🔦 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) Yes (b) No
  33. 33.True or false: a night lamp mainly gives out light. (a) False (b) True
  34. 34.🔌 Is a metal paper clip a conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.Which of these uses electricity? (a) a solar panel (b) a battery (c) a water pump (d) a wind turbine
  36. 36.⚡ A fan changes electrical energy mainly into which kind of energy? (a) chemical energy (b) sound energy (c) light energy (d) movement energy
  37. 37.🔦 A circuit has a new cell, a bulb with a broken filament and a switch that is ON. All the wires are firmly joined. Does the bulb glow? (a) Yes (b) No
  38. 38.True or false: on a cell, “the shorter symbol line” means the + (positive) end. (a) False (b) True
  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 ON, B is OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  40. 40.🔘 A cell, a bulb and switches A and B are joined one after another in a single loop (series). A is OFF and B is ON. Does the bulb glow? (a) No (b) Yes

Answer key

  1. not safe
  2. − (negative)
  3. False
  4. True
  5. a street light
  6. battery
  7. Yes
  8. a conductor
  9. poke things in a socket
  10. False
  11. − (negative)
  12. copper
  13. True
  14. False
  15. a conductor
  16. True
  17. a paper strip
  18. False
  19. True
  20. shout for an adult
  21. they keep glowing
  22. 5
  23. True
  24. False
  25. one
  26. Yes
  27. True
  28. True
  29. False
  30. heat
  31. dimmer
  32. No
  33. True
  34. a conductor
  35. a water pump
  36. movement energy
  37. No
  38. False
  39. Yes
  40. No

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids