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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 514 · 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.🔘 Which kind of switch closes when tipped over? (a) a toggle switch (b) a push button (c) a tilt switch (d) a reed switch
  2. 2.🔘 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) No (b) Yes
  3. 3.🔘 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 ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  4. 4.🔘 Two switches are in series. When does the bulb glow? (a) when both are ON (b) when both are OFF (c) never (d) when either is ON
  5. 5.🔘 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
  6. 6.True or false: a tilt switch stays where you flip it. (a) True (b) False
  7. 7.What does a slide switch do? (a) closes near a magnet (b) flips up or down (c) slides side to side (d) springs back when let go
  8. 8.🔘 Which kind of switch closes near a magnet? (a) a reed switch (b) a push button (c) a toggle switch (d) a tilt switch
  9. 9.What does a toggle switch do? (a) springs back when let go (b) closes near a magnet (c) closes when tipped over (d) stays where you flip it
  10. 10.What does a push button do? (a) springs back when let go (b) closes when tipped over (c) closes near a magnet (d) flips up or down
  11. 11.🔘 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
  12. 12.True or false: a toggle switch slides side to side. (a) False (b) True
  13. 13.What does a tilt switch do? (a) flips up or down (b) springs back when let go (c) closes when tipped over (d) stays where you flip it
  14. 14.🔘 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
  15. 15.🔘 What does a switch do in a circuit? (a) opens or closes the loop (b) stores current (c) changes the voltage (d) makes electricity
  16. 16.🔘 When a switch is ON, the circuit is … (a) broken (b) open (c) closed (d) cut
  17. 17.🔘 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) Yes (b) No
  18. 18.True or false: a tilt switch works only while pressed. (a) True (b) False
  19. 19.🔘 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 ON and C is ON. Does the bulb glow? (a) No (b) Yes
  20. 20.True or false: a toggle switch works only while pressed. (a) True (b) False
  21. 21.True or false: a reed switch closes near a magnet. (a) True (b) False
  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 ON and C is OFF. Does the bulb glow? (a) No (b) Yes
  23. 23.True or false: a push button slides side to side. (a) True (b) False
  24. 24.🔘 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?
  25. 25.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) never (c) only when both are OFF (d) when either is ON
  26. 26.🔘 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
  27. 27.True or false: a push button closes near a magnet. (a) True (b) False
  28. 28.True or false: a toggle switch stays where you flip it. (a) True (b) False
  29. 29.🔘 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
  30. 30.🔘 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
  31. 31.🔘 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?
  32. 32.True or false: a toggle switch flips up or down. (a) True (b) False
  33. 33.🔘 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
  34. 34.🔘 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
  35. 35.🔘 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) No (b) Yes
  36. 36.What does a toggle switch do? (a) closes near a magnet (b) springs back when let go (c) flips up or down (d) works only while pressed
  37. 37.🔘 A bulb and a cell are joined through 4 switches on 4 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?
  38. 38.🔘 A bulb and a cell are joined through 5 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
  39. 39.🔘 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?
  40. 40.🔘 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

Answer key

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

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