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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 144 · 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.🔘 Which kind of switch closes near a magnet? (a) a tilt switch (b) a reed switch (c) a slide switch (d) a push button
  3. 3.True or false: a tilt switch flips up or down. (a) False (b) True
  4. 4.True or false: a tilt switch works only while pressed. (a) False (b) True
  5. 5.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are OFF (b) never (c) when either is ON (d) only when both are ON
  6. 6.What does a tilt switch do? (a) flips up or down (b) closes when tipped over (c) works only while pressed (d) springs back when let go
  7. 7.🔘 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) Yes (b) No
  8. 8.True or false: a toggle switch flips up or down. (a) True (b) False
  9. 9.🔘 Which kind of switch stays where you flip it? (a) a slide switch (b) a reed switch (c) a toggle switch (d) a push button
  10. 10.What does a slide switch do? (a) slides side to side (b) springs back when let go (c) works only while pressed (d) stays where you flip it
  11. 11.🔘 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) No (b) Yes
  12. 12.True or false: a toggle switch stays where you flip it. (a) True (b) False
  13. 13.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  14. 14.True or false: a reed switch slides side to side. (a) False (b) True
  15. 15.What does a push button do? (a) stays where you flip it (b) works only while pressed (c) closes when tipped over (d) flips up or down
  16. 16.What does a reed switch do? (a) stays where you flip it (b) springs back when let go (c) flips up or down (d) closes near a magnet
  17. 17.🔘 Which kind of switch slides side to side? (a) a slide switch (b) a push button (c) a tilt switch (d) a toggle switch
  18. 18.What does a toggle switch do? (a) closes when tipped over (b) slides side to side (c) springs back when let go (d) flips up or down
  19. 19.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  20. 20.🔘 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 ON and C is OFF. Does the bulb glow? (a) No (b) Yes
  21. 21.🔘 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
  22. 22.🔘 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
  23. 23.🔘 Two switches are in series. When does the bulb glow? (a) when both are ON (b) when both are OFF (c) when either is ON (d) never
  24. 24.True or false: a reed switch closes near a magnet. (a) False (b) True
  25. 25.What does a toggle switch do? (a) slides side to side (b) closes near a magnet (c) stays where you flip it (d) closes when tipped over
  26. 26.True or false: a tilt switch slides side to side. (a) True (b) False
  27. 27.True or false: a slide switch flips up or down. (a) False (b) True
  28. 28.🔘 A bulb and a cell are joined through 4 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
  29. 29.🔘 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
  30. 30.🔘 A bulb and a cell are joined through 3 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
  31. 31.🔘 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
  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 OFF and B is OFF. Does the bulb glow? (a) No (b) Yes
  33. 33.🔘 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
  34. 34.🔘 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?
  35. 35.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  36. 36.🔘 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
  37. 37.What does a push button do? (a) stays where you flip it (b) closes near a magnet (c) springs back when let go (d) flips up or down
  38. 38.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  39. 39.🔘 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
  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 ON, B is ON and C is ON. Does the bulb glow? (a) No (b) Yes

Answer key

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

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