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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 885 · 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.🔘 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
  2. 2.What does a toggle switch do? (a) closes near a magnet (b) flips up or down (c) slides side to side (d) closes when tipped over
  3. 3.🔘 Which kind of switch stays where you flip it? (a) a tilt switch (b) a push button (c) a toggle switch (d) a reed switch
  4. 4.🔘 Which kind of switch flips up or down? (a) a reed switch (b) a slide switch (c) a push button (d) a toggle switch
  5. 5.🔘 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?
  6. 6.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) never (b) when either is ON (c) only when both are OFF (d) only when both are ON
  7. 7.🔘 Two switches are in series. When does the bulb glow? (a) when either is ON (b) when both are OFF (c) never (d) when both are ON
  8. 8.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  9. 9.What does a toggle switch do? (a) slides side to side (b) stays where you flip it (c) works only while pressed (d) closes when tipped over
  10. 10.What does a reed switch do? (a) closes near a magnet (b) flips up or down (c) closes when tipped over (d) works only while pressed
  11. 11.True or false: a push button springs back when let go. (a) False (b) True
  12. 12.🔘 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
  13. 13.True or false: a push button stays where you flip it. (a) False (b) True
  14. 14.🔘 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
  15. 15.What does a tilt switch do? (a) stays where you flip it (b) flips up or down (c) closes when tipped over (d) closes near a magnet
  16. 16.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  17. 17.🔘 Which kind of switch closes near a magnet? (a) a reed switch (b) a push button (c) a toggle switch (d) a slide switch
  18. 18.What does a push button do? (a) closes when tipped over (b) slides side to side (c) works only while pressed (d) closes near a magnet
  19. 19.🔘 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) Yes (b) No
  20. 20.🔘 Which kind of switch closes when tipped over? (a) a reed switch (b) a push button (c) a tilt switch (d) a slide switch
  21. 21.🔘 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
  22. 22.🔘 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) Yes (b) No
  23. 23.🔘 When a switch is ON, the circuit is … (a) closed (b) open (c) cut (d) broken
  24. 24.🔘 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
  25. 25.🔘 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?
  26. 26.🔘 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
  27. 27.True or false: a reed switch closes near a magnet. (a) False (b) True
  28. 28.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  29. 29.True or false: a push button works only while pressed. (a) False (b) True
  30. 30.🔘 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) Yes (b) No
  31. 31.🔘 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
  32. 32.🔘 A bulb and a cell are joined through 6 switches on 6 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 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
  34. 34.🔘 Which kind of switch slides side to side? (a) a push button (b) a reed switch (c) a slide switch (d) a tilt switch
  35. 35.True or false: a tilt switch flips up or down. (a) False (b) True
  36. 36.What does a slide switch do? (a) flips up or down (b) stays where you flip it (c) works only while pressed (d) slides side to side
  37. 37.True or false: a slide switch slides side to side. (a) True (b) False
  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 ON, B is OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  39. 39.True or false: a slide switch springs back when let go. (a) True (b) False
  40. 40.🔘 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

Answer key

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

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