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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 310 · 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 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) when either is ON (b) never (c) only when both are ON (d) only when both are OFF
  3. 3.True or false: a slide switch slides side to side. (a) True (b) False
  4. 4.🔘 Which kind of switch slides side to side? (a) a slide switch (b) a toggle switch (c) a reed switch (d) a push button
  5. 5.🔘 Which kind of switch closes when tipped over? (a) a reed switch (b) a tilt switch (c) a push button (d) a toggle switch
  6. 6.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) when both are ON (c) never (d) when either is ON
  7. 7.🔘 Which kind of switch works only while pressed? (a) a toggle switch (b) a tilt switch (c) a reed switch (d) a push button
  8. 8.🔘 When a switch is ON, the circuit is … (a) open (b) broken (c) cut (d) closed
  9. 9.🔘 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
  10. 10.🔘 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) Yes (b) No
  11. 11.What does a reed switch do? (a) flips up or down (b) slides side to side (c) closes near a magnet (d) springs back when let go
  12. 12.🔘 A bulb and a cell are joined through 5 switches on 5 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?
  13. 13.What does a slide switch do? (a) flips up or down (b) springs back when let go (c) stays where you flip it (d) slides side to side
  14. 14.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  15. 15.True or false: a toggle switch flips up or down. (a) True (b) False
  16. 16.True or false: a push button slides side to side. (a) False (b) True
  17. 17.🔘 What does a switch do in a circuit? (a) opens or closes the loop (b) makes electricity (c) changes the voltage (d) stores current
  18. 18.True or false: a reed switch stays where you flip it. (a) True (b) False
  19. 19.🔘 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) No (b) Yes
  20. 20.What does a push button do? (a) stays where you flip it (b) slides side to side (c) works only while pressed (d) flips up or down
  21. 21.🔘 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
  22. 22.🔘 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
  23. 23.What does a tilt switch do? (a) slides side to side (b) springs back when let go (c) flips up or down (d) closes when tipped over
  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 ON. Does the bulb glow? (a) No (b) Yes
  25. 25.🔘 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
  26. 26.🔘 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?
  27. 27.True or false: a push button springs back when let go. (a) True (b) False
  28. 28.🔘 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) Yes (b) No
  29. 29.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  30. 30.True or false: a push button closes near a magnet. (a) True (b) False
  31. 31.True or false: a toggle switch stays where you flip it. (a) False (b) True
  32. 32.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  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 OFF, B is OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
  34. 34.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  35. 35.What does a toggle switch do? (a) works only while pressed (b) flips up or down (c) springs back when let go (d) closes when tipped over
  36. 36.🔘 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) No (b) Yes
  37. 37.🔘 Which kind of switch stays where you flip it? (a) a reed switch (b) a tilt switch (c) a push button (d) a toggle switch
  38. 38.🔘 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) 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 OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  40. 40.🔘 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) Yes (b) No

Answer key

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

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