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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 460 · 40 questions
TalentJR

Remember (All for series, any for parallel): Series switches (one path): the bulb glows only if ALL are ON. Parallel switches (side-by-side paths): the bulb glows if ANY one is ON. Mixed: work out each path, then ask if there is at least one complete path.

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  1. 1.🔘 A cell, a bulb and switches A, B, C and D are joined one after another in a single loop (series). A is OFF, B is OFF, C is OFF and D is OFF. Does the bulb glow? (a) Yes (b) No
  2. 2.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a tilt switch (c) a push button (d) a reed switch
  3. 3.🔘 Which kind of switch stays where you flip it? (a) a tilt switch (b) a reed switch (c) a slide switch (d) a toggle switch
  4. 4.True or false: a slide switch slides side to side. (a) False (b) True
  5. 5.True or false: a toggle switch stays where you flip it. (a) False (b) True
  6. 6.🔘 What does a switch do in a circuit? (a) stores current (b) opens or closes the loop (c) makes electricity (d) changes the voltage
  7. 7.🔘 A bulb and a cell are joined through 6 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
  8. 8.🔘 A cell and a bulb are joined to 3 side-by-side paths with one switch on each path — A, B and C (parallel). A is OFF, B is OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
  9. 9.True or false: a toggle switch flips up or down. (a) True (b) False
  10. 10.🔘 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) No (b) Yes
  11. 11.🔘 When a switch is ON, the circuit is … (a) broken (b) closed (c) open (d) cut
  12. 12.🔘 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 ON and C is ON. Does the bulb glow? (a) Yes (b) No
  13. 13.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) never (b) only when both are OFF (c) when either is ON (d) only when both are ON
  14. 14.🔘 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 ON, B is ON, C is OFF and D is OFF. Does the bulb glow? (a) No (b) Yes
  15. 15.🔘 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) Yes (b) No
  16. 16.🔘 A bulb and a cell are joined through 3 switches on 3 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?
  17. 17.🔘 Two switches are in series. When does the bulb glow? (a) never (b) when both are ON (c) when both are OFF (d) when either is ON
  18. 18.🔘 A cell, a bulb and switches A and B are joined one after another in a single loop (series). A is ON and B is OFF. Does the bulb glow? (a) No (b) Yes
  19. 19.🔘 Which kind of switch flips up or down? (a) a push button (b) a slide switch (c) a tilt switch (d) a toggle switch
  20. 20.What does a slide switch do? (a) closes near a magnet (b) stays where you flip it (c) flips up or down (d) slides side to side
  21. 21.What does a tilt switch do? (a) flips up or down (b) closes when tipped over (c) springs back when let go (d) slides side to side
  22. 22.True or false: a slide switch closes when tipped over. (a) False (b) True
  23. 23.🔘 A bulb and a cell are joined through 3 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
  24. 24.🔘 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 ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  25. 25.🔘 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 ON, B is OFF, C is ON and D is ON. Does the bulb glow? (a) No (b) Yes
  26. 26.🔘 Which kind of switch closes when tipped over? (a) a push button (b) a tilt switch (c) a reed switch (d) a toggle switch
  27. 27.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  28. 28.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  29. 29.True or false: a push button springs back when let go. (a) False (b) True
  30. 30.🔘 Which kind of switch springs back when let go? (a) a slide switch (b) a push button (c) a toggle switch (d) a tilt switch
  31. 31.🔘 A cell, a bulb and switches A, B, C and D are joined one after another in a single loop (series). A is OFF, B is ON, C is ON and D is OFF. Does the bulb glow? (a) Yes (b) No
  32. 32.True or false: a toggle switch closes near a magnet. (a) True (b) False
  33. 33.🔘 A bulb and a cell are joined through 5 switches on 5 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?
  34. 34.🔘 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
  35. 35.🔘 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 OFF, B is ON and C is OFF. Does the bulb glow? (a) No (b) Yes
  36. 36.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  37. 37.🔘 A cell, a bulb and switches A, B, C and D are joined one after another in a single loop (series). A is OFF, B is OFF, C is ON and D is ON. Does the bulb glow? (a) No (b) Yes
  38. 38.🔘 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 ON and C is ON. Does the bulb glow? (a) Yes (b) No
  39. 39.🔘 A cell, a bulb and switches A, B, C and D are joined one after another in a single loop (series). A is OFF, B is ON, C is OFF and D is ON. Does the bulb glow? (a) No (b) Yes
  40. 40.🔘 A bulb and a cell are joined through 5 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?

Answer key

  1. No
  2. a reed switch
  3. a toggle switch
  4. True
  5. True
  6. opens or closes the loop
  7. 6
  8. No
  9. True
  10. Yes
  11. closed
  12. Yes
  13. when either is ON
  14. Yes
  15. No
  16. 1
  17. when both are ON
  18. No
  19. a toggle switch
  20. slides side to side
  21. closes when tipped over
  22. False
  23. 3
  24. No
  25. Yes
  26. a tilt switch
  27. No
  28. Yes
  29. True
  30. a push button
  31. No
  32. False
  33. 1
  34. Yes
  35. No
  36. No
  37. No
  38. No
  39. No
  40. 5

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