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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 103 · 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.True or false: a reed switch flips up or down. (a) True (b) False
  2. 2.🔘 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) Yes (b) No
  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 OFF, B is OFF, C is OFF and D is ON. Does the bulb glow? (a) No (b) Yes
  4. 4.🔘 Two switches are in series. When does the bulb glow? (a) when either is ON (b) never (c) when both are ON (d) when both are OFF
  5. 5.🔘 Which kind of switch stays where you flip it? (a) a push button (b) a reed switch (c) a tilt switch (d) a toggle switch
  6. 6.🔘 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
  7. 7.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) never (b) only when both are OFF (c) when either is ON (d) only when both are ON
  8. 8.🔘 Which kind of switch closes when tipped over? (a) a reed switch (b) a tilt switch (c) a toggle switch (d) a slide switch
  9. 9.What does a tilt switch do? (a) slides side to side (b) works only while pressed (c) closes when tipped over (d) springs back when let go
  10. 10.What does a reed switch do? (a) closes near a magnet (b) works only while pressed (c) flips up or down (d) closes when tipped over
  11. 11.True or false: a toggle switch flips up or down. (a) False (b) True
  12. 12.True or false: a slide switch slides side to side. (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 OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  14. 14.What does a toggle switch do? (a) springs back when let go (b) slides side to side (c) closes near a magnet (d) stays where you flip it
  15. 15.🔘 Which kind of switch flips up or down? (a) a reed switch (b) a slide switch (c) a toggle switch (d) a push button
  16. 16.True or false: a reed switch closes near a magnet. (a) False (b) True
  17. 17.🔘 What does a switch do in a circuit? (a) stores current (b) opens or closes the loop (c) changes the voltage (d) makes electricity
  18. 18.True or false: a push button springs back when let go. (a) False (b) True
  19. 19.🔘 Which kind of switch slides side to side? (a) a push button (b) a slide switch (c) a tilt switch (d) a toggle switch
  20. 20.What does a slide switch do? (a) flips up or down (b) slides side to side (c) works only while pressed (d) springs back when let go
  21. 21.🔘 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?
  22. 22.🔘 Which kind of switch works only while pressed? (a) a reed switch (b) a toggle switch (c) a push button (d) a slide switch
  23. 23.🔘 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
  24. 24.🔘 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 ON and D is ON. Does the bulb glow? (a) Yes (b) No
  25. 25.🔘 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
  26. 26.What does a push button do? (a) works only while pressed (b) closes when tipped over (c) closes near a magnet (d) stays where you flip it
  27. 27.True or false: a tilt switch springs back when let go. (a) True (b) False
  28. 28.True or false: a slide switch stays where you flip it. (a) False (b) True
  29. 29.🔘 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
  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 OFF, B is ON and C is OFF. Does the bulb glow? (a) No (b) Yes
  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 ON. Does the bulb glow? (a) Yes (b) No
  32. 32.🔘 When a switch is ON, the circuit is … (a) cut (b) broken (c) open (d) closed
  33. 33.🔘 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
  34. 34.🔘 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) No (b) Yes
  35. 35.What does a toggle switch do? (a) closes near a magnet (b) springs back when let go (c) works only while pressed (d) flips up or down
  36. 36.True or false: a slide switch closes when tipped over. (a) True (b) False
  37. 37.🔘 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?
  38. 38.🔘 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?
  39. 39.🔘 A bulb and a cell are joined through 6 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
  40. 40.🔘 Which kind of switch springs back when let go? (a) a slide switch (b) a push button (c) a reed switch (d) a tilt switch

Answer key

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

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