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Electronics Worksheet: Electricity Basics Test

Electronics lesson 10: Part 1 test: electricity basics · Set 664 · 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.

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  1. 1.🔋 Does a power station give electricity or use electricity? (a) gives electricity (b) uses electricity
  2. 2.🔌 Which part of a screwdriver should an electrician hold? (a) the plastic handle (b) the steel shaft (c) the bare end (d) the metal tip
  3. 3.True or false: “one out, the rest glow” is true of a series circuit. (a) False (b) True
  4. 4.Which of these is true of a parallel circuit? (a) a break stops every bulb (b) a single current path (c) each gets the full volts (d) one bulb out, all go out
  5. 5.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
  6. 6.🔗 Series or parallel circuit: “own switch for each bulb”? (a) parallel (b) series
  7. 7.🔋 How many volts does one ordinary torch cell give? (a) 230 V (b) 1.5 V (c) 15 V (d) 0.5 V
  8. 8.🔘 A bulb and a cell are joined through 2 switches on 2 side-by-side paths, one switch on each path (parallel). What is the smallest number of switches that must be ON to light the bulb?
  9. 9.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) resistor (c) capacitor (d) bulb
  10. 10.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
  11. 11.🔁 What must there be for a current to flow? (a) a plastic gap (b) a broken path (c) a complete loop (d) one loose end
  12. 12.🔌 Is aluminium foil a conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.True or false: two equal parallel lines is the symbol for an LED. (a) True (b) False
  14. 14.True or false: a torch mainly gives out light. (a) True (b) False
  15. 15.True or false: “bulbs share the voltage” is true of a parallel circuit. (a) False (b) True
  16. 16.🔍 Which is the odd one out? (a) a plastic ruler (b) a paper strip (c) a wooden stick (d) a brass key
  17. 17.💡 5 identical bulbs are joined in parallel across a 6 V battery (ideal wires). How many volts does each bulb get? =
  18. 18.Which of these mainly gives out heat? (a) a toaster (b) a traffic signal (c) a loudspeaker (d) an electric toy car
  19. 19.⚠️ Is it safe to use small battery cells? (a) safe (b) not safe
  20. 20.True or false: “one out, the rest glow” is true of a parallel circuit. (a) True (b) False
  21. 21.🔋 Does a bicycle dynamo give electricity or use electricity? (a) uses electricity (b) gives electricity
  22. 22.🔗 Series or parallel circuit: “each gets the full volts”? (a) series (b) parallel
  23. 23.Which of these is true of a series circuit? (a) one out, the rest glow (b) used in house wiring (c) many paths for current (d) bulbs share the voltage
  24. 24.True or false: a glass marble is an insulator. (a) False (b) True
  25. 25.Which of these is an insulator? (a) aluminium foil (b) a copper wire (c) a steel spoon (d) a rubber eraser
  26. 26.🔋 Does a solar panel give electricity or use electricity? (a) gives electricity (b) uses electricity
  27. 27.Which of these is true of a series circuit? (a) a break stops every bulb (b) one out, the rest glow (c) used in house wiring (d) each gets the full volts
  28. 28.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) capacitor (c) motor (d) battery
  29. 29.🔋 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)? =
  30. 30.💡 5 identical bulbs are joined in series with a battery and a closed switch on the main wire. Bulb 5 is taken out of its holder. How many bulbs glow?
  31. 31.True or false: to keep drinks far away is safe. (a) True (b) False
  32. 32.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) little stars (d) wavy lines
  33. 33.True or false: a toggle switch works only while pressed. (a) True (b) False
  34. 34.🔌 Is a brass key a conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.🔘 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 OFF and B is ON. Does the bulb glow? (a) Yes (b) No
  36. 36.Which of these means the circuit is open? (a) the switch is ON (b) the loop is complete (c) a wire has come loose (d) all wires are joined
  37. 37.🔋 What should you do with used-up cells? (a) bury them in soil (b) throw them in a fire (c) give them for recycling (d) cut them open
  38. 38.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a short circuit (b) an open circuit (c) a parallel circuit (d) a safe circuit
  39. 39.🔌 Is a rubber band a conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🔍 Which is the odd one out? (a) a ceramic cup (b) a woollen thread (c) an iron nail (d) a cotton thread

Answer key

  1. gives electricity
  2. the plastic handle
  3. False
  4. each gets the full volts
  5. not safe
  6. parallel
  7. 1.5 V
  8. 1
  9. resistor
  10. the longer line
  11. a complete loop
  12. a conductor
  13. False
  14. True
  15. False
  16. a brass key
  17. 6
  18. a toaster
  19. safe
  20. True
  21. gives electricity
  22. parallel
  23. bulbs share the voltage
  24. True
  25. a rubber eraser
  26. gives electricity
  27. a break stops every bulb
  28. battery
  29. 7.5
  30. 0
  31. True
  32. straight lines
  33. False
  34. a conductor
  35. Yes
  36. a wire has come loose
  37. give them for recycling
  38. a short circuit
  39. an insulator
  40. an iron nail

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