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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 564 · 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 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 OFF. Does the bulb glow? (a) Yes (b) No
  2. 2.🔘 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
  3. 3.🔘 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) Yes (b) No
  4. 4.True or false: a slide switch flips up or down. (a) True (b) False
  5. 5.🔘 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?
  6. 6.What does a push button do? (a) closes when tipped over (b) slides side to side (c) works only while pressed (d) stays where you flip it
  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 ON, B is ON and C is OFF. Does the bulb glow? (a) No (b) Yes
  8. 8.🔘 Which kind of switch slides side to side? (a) a push button (b) a tilt switch (c) a reed switch (d) a slide switch
  9. 9.What does a slide switch do? (a) stays where you flip it (b) flips up or down (c) slides side to side (d) springs back when let go
  10. 10.True or false: a toggle switch flips up or down. (a) True (b) False
  11. 11.True or false: a tilt switch slides side to side. (a) True (b) False
  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) No (b) Yes
  13. 13.🔘 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 ON and D is ON. Does the bulb glow? (a) No (b) Yes
  14. 14.🔘 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
  15. 15.What does a tilt switch do? (a) closes when tipped over (b) works only while pressed (c) flips up or down (d) closes near a magnet
  16. 16.🔘 Which kind of switch flips up or down? (a) a reed switch (b) a toggle switch (c) a slide switch (d) a tilt switch
  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 ON and B is OFF. Does the bulb glow? (a) Yes (b) No
  18. 18.🔘 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
  19. 19.🔘 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 ON and D is OFF. Does the bulb glow? (a) Yes (b) No
  20. 20.🔘 What does a switch do in a circuit? (a) changes the voltage (b) opens or closes the loop (c) makes electricity (d) stores current
  21. 21.🔘 When a switch is ON, the circuit is … (a) open (b) cut (c) broken (d) closed
  22. 22.True or false: a push button springs back when let go. (a) False (b) True
  23. 23.🔘 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 OFF, C is ON and D is ON. Does the bulb glow? (a) Yes (b) No
  24. 24.What does a toggle switch do? (a) closes when tipped over (b) works only while pressed (c) flips up or down (d) springs back when let go
  25. 25.True or false: a toggle switch works only while pressed. (a) True (b) False
  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 OFF, B is OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  27. 27.What does a push button do? (a) springs back when let go (b) closes near a magnet (c) closes when tipped over (d) flips up or down
  28. 28.🔘 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
  29. 29.True or false: a reed switch works only while pressed. (a) False (b) True
  30. 30.🔘 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
  31. 31.🔘 Two switches are in series. When does the bulb glow? (a) when either is ON (b) never (c) when both are ON (d) when both are OFF
  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 ON, B is ON and C is ON. Does the bulb glow? (a) Yes (b) No
  33. 33.🔘 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?
  34. 34.🔘 Which kind of switch closes when tipped over? (a) a toggle switch (b) a slide switch (c) a tilt switch (d) a push button
  35. 35.🔘 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
  36. 36.🔘 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?
  37. 37.🔘 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 OFF, C is OFF and D is OFF. Does the bulb glow? (a) No (b) Yes
  38. 38.🔘 Which kind of switch closes near a magnet? (a) a tilt switch (b) a push button (c) a toggle switch (d) a reed switch
  39. 39.True or false: a reed switch flips up or down. (a) True (b) False
  40. 40.🔘 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

Answer key

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

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