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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 90 · 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 bulb and a cell are joined through 4 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
  2. 2.🔘 When a switch is ON, the circuit is … (a) cut (b) broken (c) closed (d) open
  3. 3.🔘 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) Yes (b) No
  4. 4.🔘 Which kind of switch flips up or down? (a) a push button (b) a toggle switch (c) a slide switch (d) a tilt switch
  5. 5.🔘 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?
  6. 6.What does a tilt switch do? (a) springs back when let go (b) works only while pressed (c) slides side to side (d) closes when tipped over
  7. 7.🔘 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
  8. 8.🔘 Which kind of switch closes when tipped over? (a) a reed switch (b) a slide switch (c) a toggle switch (d) a tilt switch
  9. 9.True or false: a push button works only while pressed. (a) True (b) False
  10. 10.🔘 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) Yes (b) No
  11. 11.True or false: a toggle switch flips up or down. (a) True (b) False
  12. 12.🔘 Which kind of switch works only while pressed? (a) a push button (b) a reed switch (c) a slide switch (d) a tilt switch
  13. 13.🔘 A cell, a bulb and switches A, B and C are joined one after another in a single loop (series). A is OFF, B is ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  14. 14.What does a slide switch do? (a) closes when tipped over (b) stays where you flip it (c) works only while pressed (d) slides side to side
  15. 15.True or false: a tilt switch flips up or down. (a) False (b) True
  16. 16.🔘 Which kind of switch slides side to side? (a) a reed switch (b) a toggle switch (c) a push button (d) a slide switch
  17. 17.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) never (b) only when both are ON (c) when either is ON (d) only when both are OFF
  18. 18.What does a toggle switch do? (a) works only while pressed (b) slides side to side (c) stays where you flip it (d) closes near a magnet
  19. 19.🔘 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 ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  20. 20.🔘 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
  21. 21.True or false: a push button closes when tipped over. (a) True (b) False
  22. 22.🔘 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) No (b) Yes
  23. 23.🔘 Two switches are in series. When does the bulb glow? (a) never (b) when both are OFF (c) when either is ON (d) when both are ON
  24. 24.🔘 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?
  25. 25.🔘 Which kind of switch closes near a magnet? (a) a tilt switch (b) a toggle switch (c) a push button (d) a reed switch
  26. 26.What does a push button do? (a) flips up or down (b) works only while pressed (c) closes near a magnet (d) slides side to side
  27. 27.🔘 Which kind of switch stays where you flip it? (a) a reed switch (b) a slide switch (c) a push button (d) a toggle switch
  28. 28.True or false: a tilt switch closes near a magnet. (a) True (b) False
  29. 29.🔘 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 ON and D is OFF. Does the bulb glow? (a) Yes (b) No
  30. 30.True or false: a toggle switch stays where you flip it. (a) False (b) True
  31. 31.True or false: a reed switch springs back when let go. (a) False (b) True
  32. 32.What does a toggle switch do? (a) flips up or down (b) closes when tipped over (c) works only while pressed (d) springs back when let go
  33. 33.What does a reed switch do? (a) flips up or down (b) closes near a magnet (c) works only while pressed (d) slides side to side
  34. 34.🔘 Which kind of switch springs back when let go? (a) a toggle switch (b) a tilt switch (c) a slide switch (d) a push button
  35. 35.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  36. 36.🔘 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 ON and C is ON. Does the bulb glow? (a) No (b) Yes
  37. 37.🔘 A cell, a bulb and switches A, B and C are joined one after another in a single loop (series). A is OFF, B is OFF and C 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 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 ON. Does the bulb glow? (a) No (b) Yes
  40. 40.🔘 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?

Answer key

  1. 4
  2. closed
  3. Yes
  4. a toggle switch
  5. 1
  6. closes when tipped over
  7. Yes
  8. a tilt switch
  9. True
  10. No
  11. True
  12. a push button
  13. No
  14. slides side to side
  15. False
  16. a slide switch
  17. when either is ON
  18. stays where you flip it
  19. Yes
  20. No
  21. False
  22. No
  23. when both are ON
  24. 1
  25. a reed switch
  26. works only while pressed
  27. a toggle switch
  28. False
  29. Yes
  30. True
  31. False
  32. flips up or down
  33. closes near a magnet
  34. a push button
  35. Yes
  36. Yes
  37. No
  38. No
  39. Yes
  40. 3

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