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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 67 · 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.🔘 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
  2. 2.🔘 Which kind of switch closes near a magnet? (a) a push button (b) a tilt switch (c) a toggle switch (d) a reed switch
  3. 3.🔘 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
  4. 4.🔘 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
  5. 5.What does a push button do? (a) springs back when let go (b) closes near a magnet (c) closes when tipped over (d) flips up or down
  6. 6.🔘 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) No (b) Yes
  7. 7.🔘 When a switch is ON, the circuit is … (a) cut (b) broken (c) open (d) closed
  8. 8.🔘 Which kind of switch slides side to side? (a) a toggle switch (b) a reed switch (c) a push button (d) a slide switch
  9. 9.What does a push button do? (a) works only while pressed (b) slides side to side (c) stays where you flip it (d) closes near a magnet
  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 ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  11. 11.🔘 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?
  12. 12.🔘 Which kind of switch works only while pressed? (a) a toggle switch (b) a reed switch (c) a slide switch (d) a push button
  13. 13.🔘 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?
  14. 14.True or false: a reed switch springs back when let go. (a) False (b) True
  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 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) No (b) Yes
  17. 17.🔘 Two switches are in series. When does the bulb glow? (a) never (b) when both are ON (c) when both are OFF (d) when either is ON
  18. 18.True or false: a toggle switch springs back when let go. (a) False (b) True
  19. 19.True or false: a push button works only while pressed. (a) True (b) False
  20. 20.🔘 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?
  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 ON and B is ON. Does the bulb glow? (a) No (b) Yes
  22. 22.🔘 What does a switch do in a circuit? (a) stores current (b) opens or closes the loop (c) changes the voltage (d) makes electricity
  23. 23.🔘 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
  24. 24.True or false: a slide switch springs back when let go. (a) True (b) False
  25. 25.What does a slide switch do? (a) flips up or down (b) stays where you flip it (c) slides side to side (d) works only while pressed
  26. 26.🔘 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
  27. 27.🔘 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
  28. 28.🔘 Which kind of switch stays where you flip it? (a) a toggle switch (b) a slide switch (c) a push button (d) a tilt switch
  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 OFF, B is OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  30. 30.🔘 Which kind of switch closes when tipped over? (a) a toggle switch (b) a slide switch (c) a push button (d) a tilt switch
  31. 31.What does a tilt switch do? (a) flips up or down (b) stays where you flip it (c) slides side to side (d) closes when tipped over
  32. 32.🔘 Which kind of switch flips up or down? (a) a slide switch (b) a push button (c) a toggle switch (d) a reed switch
  33. 33.True or false: a toggle switch flips up or down. (a) True (b) False
  34. 34.What does a toggle switch do? (a) slides side to side (b) closes when tipped over (c) flips up or down (d) closes near a magnet
  35. 35.What does a reed switch do? (a) stays where you flip it (b) closes near a magnet (c) springs back when let go (d) flips up or down
  36. 36.True or false: a reed switch closes near a magnet. (a) True (b) False
  37. 37.🔘 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
  38. 38.🔘 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
  39. 39.True or false: a tilt switch closes near a magnet. (a) False (b) True
  40. 40.True or false: a push button closes when tipped over. (a) True (b) False

Answer key

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

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