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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 105 · 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.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  3. 3.🔘 Which kind of switch closes when tipped over? (a) a tilt switch (b) a slide switch (c) a toggle switch (d) a reed switch
  4. 4.🔘 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) No (b) Yes
  5. 5.🔘 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 OFF and D is OFF. Does the bulb glow? (a) No (b) Yes
  6. 6.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) never (b) only when both are ON (c) only when both are OFF (d) when either is ON
  7. 7.🔘 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) No (b) Yes
  8. 8.🔘 When a switch is ON, the circuit is … (a) open (b) cut (c) broken (d) closed
  9. 9.What does a toggle switch do? (a) springs back when let go (b) closes near a magnet (c) closes when tipped over (d) flips up or down
  10. 10.🔘 Which kind of switch slides side to side? (a) a toggle switch (b) a reed switch (c) a slide switch (d) a tilt switch
  11. 11.True or false: a slide switch closes when tipped over. (a) False (b) True
  12. 12.True or false: a tilt switch closes when tipped over. (a) True (b) False
  13. 13.🔘 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) Yes (b) No
  14. 14.🔘 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) Yes (b) No
  15. 15.True or false: a toggle switch flips up or down. (a) False (b) True
  16. 16.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  17. 17.🔘 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
  18. 18.🔘 Two switches are in series. When does the bulb glow? (a) when both are ON (b) when either is ON (c) when both are OFF (d) never
  19. 19.🔘 Which kind of switch stays where you flip it? (a) a tilt switch (b) a reed switch (c) a push button (d) a toggle switch
  20. 20.True or false: a toggle switch slides side to side. (a) True (b) False
  21. 21.🔘 What does a switch do in a circuit? (a) makes electricity (b) opens or closes the loop (c) stores current (d) changes the voltage
  22. 22.🔘 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) Yes (b) No
  23. 23.🔘 A bulb and a cell are joined through 2 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.What does a push button do? (a) closes when tipped over (b) slides side to side (c) works only while pressed (d) flips up or down
  25. 25.🔘 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?
  26. 26.🔘 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
  27. 27.What does a tilt switch do? (a) stays where you flip it (b) closes when tipped over (c) flips up or down (d) slides side to side
  28. 28.What does a toggle switch do? (a) springs back when let go (b) closes when tipped over (c) stays where you flip it (d) slides side to side
  29. 29.What does a slide switch do? (a) springs back when let go (b) stays where you flip it (c) slides side to side (d) works only while pressed
  30. 30.What does a reed switch do? (a) closes when tipped over (b) slides side to side (c) stays where you flip it (d) closes near a magnet
  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 ON, B is OFF, C is ON and D is ON. Does the bulb glow? (a) Yes (b) No
  32. 32.What does a push button do? (a) stays where you flip it (b) springs back when let go (c) flips up or down (d) closes near a magnet
  33. 33.🔘 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
  34. 34.🔘 Which kind of switch closes near a magnet? (a) a reed switch (b) a toggle switch (c) a tilt switch (d) a push button
  35. 35.🔘 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?
  36. 36.🔘 A bulb and a cell are joined through 4 switches on 4 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?
  37. 37.True or false: a push button springs back when let go. (a) False (b) True
  38. 38.True or false: a reed switch works only while pressed. (a) True (b) False
  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.True or false: a slide switch slides side to side. (a) False (b) True

Answer key

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

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