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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 42 · 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 OFF, B is OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  2. 2.🔘 When a switch is ON, the circuit is … (a) broken (b) open (c) cut (d) closed
  3. 3.🔘 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
  4. 4.🔘 Which kind of switch closes near a magnet? (a) a slide switch (b) a toggle switch (c) a reed switch (d) a tilt switch
  5. 5.What does a toggle switch do? (a) slides side to side (b) flips up or down (c) works only while pressed (d) closes when tipped over
  6. 6.🔘 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) Yes (b) No
  7. 7.🔘 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 ON (d) only when both are OFF
  8. 8.What does a slide switch do? (a) stays where you flip it (b) slides side to side (c) closes near a magnet (d) flips up or down
  9. 9.What does a toggle switch do? (a) closes near a magnet (b) works only while pressed (c) stays where you flip it (d) springs back when let go
  10. 10.🔘 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
  11. 11.🔘 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
  12. 12.🔘 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
  13. 13.🔘 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?
  14. 14.🔘 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
  15. 15.🔘 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
  16. 16.What does a reed switch do? (a) closes near a magnet (b) flips up or down (c) slides side to side (d) springs back when let go
  17. 17.🔘 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
  18. 18.🔘 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) No (b) Yes
  19. 19.🔘 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
  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 OFF. Does the bulb glow? (a) No (b) Yes
  21. 21.True or false: a tilt switch slides side to side. (a) True (b) False
  22. 22.True or false: a tilt switch works only while pressed. (a) False (b) True
  23. 23.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  24. 24.🔘 Which kind of switch works only while pressed? (a) a push button (b) a tilt switch (c) a toggle switch (d) a reed switch
  25. 25.🔘 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
  26. 26.True or false: a reed switch flips up or down. (a) False (b) True
  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 OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
  28. 28.What does a tilt switch do? (a) slides side to side (b) flips up or down (c) closes when tipped over (d) closes near a magnet
  29. 29.True or false: a reed switch works only while pressed. (a) True (b) False
  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 ON, B is OFF, C is OFF and D is ON. Does the bulb glow? (a) No (b) Yes
  31. 31.What does a push button do? (a) closes when tipped over (b) works only while pressed (c) closes near a magnet (d) stays where you flip it
  32. 32.🔘 Which kind of switch flips up or down? (a) a reed switch (b) a tilt switch (c) a toggle switch (d) a push button
  33. 33.True or false: a push button slides side to side. (a) False (b) True
  34. 34.🔘 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?
  35. 35.True or false: a tilt switch closes near a magnet. (a) True (b) False
  36. 36.🔘 What does a switch do in a circuit? (a) opens or closes the loop (b) changes the voltage (c) makes electricity (d) stores current
  37. 37.🔘 Which kind of switch stays where you flip it? (a) a reed switch (b) a push button (c) a toggle switch (d) a tilt switch
  38. 38.🔘 Which kind of switch closes when tipped over? (a) a toggle switch (b) a slide switch (c) a tilt switch (d) a reed switch
  39. 39.True or false: a push button springs back when let go. (a) False (b) True
  40. 40.True or false: a reed switch closes near a magnet. (a) False (b) True

Answer key

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

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