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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 892 · 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.🔘 When a switch is ON, the circuit is … (a) open (b) broken (c) cut (d) closed
  2. 2.What does a reed switch do? (a) closes near a magnet (b) closes when tipped over (c) works only while pressed (d) springs back when let go
  3. 3.🔘 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
  4. 4.🔘 Which kind of switch stays where you flip it? (a) a toggle switch (b) a push button (c) a reed switch (d) a tilt switch
  5. 5.🔘 Two switches are in series. When does the bulb glow? (a) when both are ON (b) never (c) when both are OFF (d) when either is ON
  6. 6.What does a toggle switch do? (a) springs back when let go (b) closes near a magnet (c) stays where you flip it (d) closes when tipped over
  7. 7.🔘 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
  8. 8.🔘 What does a switch do in a circuit? (a) changes the voltage (b) stores current (c) opens or closes the loop (d) makes electricity
  9. 9.🔘 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
  10. 10.What does a toggle switch do? (a) closes near a magnet (b) slides side to side (c) works only while pressed (d) flips up or down
  11. 11.What does a tilt switch do? (a) closes when tipped over (b) flips up or down (c) works only while pressed (d) stays where you flip it
  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 OFF and C is ON. Does the bulb glow? (a) Yes (b) No
  13. 13.🔘 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) No (b) Yes
  14. 14.What does a slide switch do? (a) springs back when let go (b) closes when tipped over (c) flips up or down (d) slides side to side
  15. 15.🔘 Which kind of switch slides side to side? (a) a push button (b) a toggle switch (c) a reed switch (d) a slide switch
  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.🔘 Which kind of switch springs back when let go? (a) a tilt switch (b) a toggle switch (c) a reed switch (d) a push button
  18. 18.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) only when both are OFF (c) never (d) when either is ON
  19. 19.True or false: a push button closes when tipped over. (a) False (b) True
  20. 20.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  21. 21.🔘 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 ON, B is OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
  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 OFF. Does the bulb glow? (a) Yes (b) No
  23. 23.True or false: a toggle switch flips up or down. (a) True (b) False
  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 OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
  25. 25.🔘 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
  26. 26.🔘 Which kind of switch flips up or down? (a) a tilt switch (b) a toggle switch (c) a reed switch (d) a push button
  27. 27.True or false: a reed switch closes when tipped over. (a) False (b) True
  28. 28.What does a push button do? (a) stays where you flip it (b) springs back when let go (c) closes near a magnet (d) flips up or down
  29. 29.True or false: a reed switch flips up or down. (a) False (b) True
  30. 30.True or false: a slide switch slides side to side. (a) False (b) True
  31. 31.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a tilt switch (c) a push button (d) a reed switch
  32. 32.🔘 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?
  33. 33.🔘 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 OFF and D is ON. Does the bulb glow? (a) No (b) Yes
  34. 34.🔘 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 OFF, B is ON, C is OFF and D 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 OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  36. 36.True or false: a push button works only while pressed. (a) True (b) False
  37. 37.True or false: a slide switch works only while pressed. (a) True (b) False
  38. 38.🔘 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?
  39. 39.True or false: a push button springs back when let go. (a) True (b) False
  40. 40.🔘 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?

Answer key

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

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