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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 222 · 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.🔘 When a switch is ON, the circuit is … (a) broken (b) closed (c) open (d) cut
  2. 2.🔘 Two switches are in series. When does the bulb glow? (a) when both are ON (b) when either is ON (c) never (d) when both are OFF
  3. 3.What does a tilt switch do? (a) stays where you flip it (b) closes when tipped over (c) flips up or down (d) closes near a magnet
  4. 4.🔘 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?
  5. 5.🔘 What does a switch do in a circuit? (a) makes electricity (b) changes the voltage (c) opens or closes the loop (d) stores current
  6. 6.True or false: a toggle switch springs back when let go. (a) True (b) False
  7. 7.🔘 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
  8. 8.🔘 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
  9. 9.True or false: a push button closes when tipped over. (a) False (b) True
  10. 10.What does a slide switch do? (a) stays where you flip it (b) slides side to side (c) flips up or down (d) closes when tipped over
  11. 11.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  12. 12.True or false: a reed switch closes near a magnet. (a) False (b) True
  13. 13.🔘 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) Yes (b) No
  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 OFF. Does the bulb glow? (a) No (b) Yes
  15. 15.🔘 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 OFF and D is OFF. Does the bulb glow? (a) Yes (b) No
  16. 16.🔘 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
  17. 17.🔘 Which kind of switch flips up or down? (a) a reed switch (b) a push button (c) a tilt switch (d) a toggle switch
  18. 18.🔘 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
  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.🔘 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) Yes (b) No
  21. 21.True or false: a slide switch closes when tipped over. (a) False (b) True
  22. 22.🔘 Which kind of switch works only while pressed? (a) a toggle switch (b) a push button (c) a reed switch (d) a slide switch
  23. 23.🔘 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
  24. 24.🔘 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
  25. 25.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  26. 26.What does a toggle switch do? (a) springs back when let go (b) closes near a magnet (c) slides side to side (d) stays where you flip it
  27. 27.🔘 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
  28. 28.What does a toggle switch do? (a) closes near a magnet (b) closes when tipped over (c) flips up or down (d) works only while pressed
  29. 29.🔘 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?
  30. 30.🔘 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?
  31. 31.🔘 Which kind of switch closes near a magnet? (a) a reed switch (b) a tilt switch (c) a toggle switch (d) a slide switch
  32. 32.🔘 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) No (b) Yes
  33. 33.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  34. 34.True or false: a reed switch slides side to side. (a) True (b) False
  35. 35.True or false: a slide switch stays where you flip it. (a) True (b) False
  36. 36.What does a reed switch do? (a) slides side to side (b) flips up or down (c) stays where you flip it (d) closes near a magnet
  37. 37.🔘 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?
  38. 38.🔘 Which kind of switch closes when tipped over? (a) a slide switch (b) a toggle switch (c) a tilt switch (d) a push button
  39. 39.What does a push button do? (a) stays where you flip it (b) slides side to side (c) springs back when let go (d) closes near a magnet
  40. 40.🔘 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

Answer key

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

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