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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 524 · 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.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) when either is ON (c) when both are ON (d) never
  2. 2.True or false: a reed switch flips up or down. (a) False (b) True
  3. 3.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are OFF (b) never (c) only when both are ON (d) when either is ON
  4. 4.🔘 What does a switch do in a circuit? (a) opens or closes the loop (b) makes electricity (c) changes the voltage (d) stores current
  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.🔘 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) Yes (b) No
  7. 7.🔘 A cell, a bulb and switches A and B are joined one after another in a single loop (series). A is OFF and B is OFF. Does the bulb glow? (a) No (b) Yes
  8. 8.🔘 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) Yes (b) No
  9. 9.🔘 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 ON, C is OFF and D is OFF. Does the bulb glow? (a) Yes (b) No
  10. 10.True or false: a toggle switch stays where you flip it. (a) False (b) True
  11. 11.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  12. 12.What does a tilt switch do? (a) stays where you flip it (b) closes when tipped over (c) works only while pressed (d) springs back when let go
  13. 13.🔘 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?
  14. 14.True or false: a reed switch stays where you flip it. (a) False (b) True
  15. 15.🔘 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
  16. 16.🔘 When a switch is ON, the circuit is … (a) open (b) cut (c) broken (d) closed
  17. 17.🔘 Which kind of switch stays where you flip it? (a) a push button (b) a tilt switch (c) a toggle switch (d) a slide switch
  18. 18.🔘 Which kind of switch flips up or down? (a) a toggle switch (b) a reed switch (c) a push button (d) a slide switch
  19. 19.What does a push button do? (a) flips up or down (b) closes near a magnet (c) stays where you flip it (d) springs back when let go
  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 ON and C is ON. Does the bulb glow? (a) No (b) Yes
  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.🔘 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
  23. 23.🔘 A cell, a bulb and switches A, B and C are joined one after another in a single loop (series). A is ON, B is OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  24. 24.What does a reed switch do? (a) flips up or down (b) works only while pressed (c) stays where you flip it (d) closes near a magnet
  25. 25.🔘 Which kind of switch closes near a magnet? (a) a slide switch (b) a toggle switch (c) a push button (d) a reed switch
  26. 26.🔘 Which kind of switch slides side to side? (a) a reed switch (b) a push button (c) a tilt switch (d) a slide switch
  27. 27.🔘 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
  28. 28.True or false: a toggle switch flips up or down. (a) True (b) False
  29. 29.🔘 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
  30. 30.🔘 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) Yes (b) No
  31. 31.What does a slide switch do? (a) works only while pressed (b) slides side to side (c) closes when tipped over (d) springs back when let go
  32. 32.🔘 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) Yes (b) No
  33. 33.True or false: a push button springs back when let go. (a) False (b) True
  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.🔘 Which kind of switch closes when tipped over? (a) a toggle switch (b) a slide switch (c) a tilt switch (d) a push button
  36. 36.True or false: a toggle switch closes when tipped over. (a) True (b) False
  37. 37.🔘 Which kind of switch springs back when let go? (a) a tilt switch (b) a toggle switch (c) a push button (d) a slide switch
  38. 38.True or false: a toggle switch springs back when let go. (a) False (b) True
  39. 39.True or false: a tilt switch closes near a magnet. (a) False (b) True
  40. 40.True or false: a reed switch springs back when let go. (a) False (b) True

Answer key

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

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