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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 906 · 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 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?
  2. 2.🔘 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
  3. 3.🔘 When a switch is ON, the circuit is … (a) open (b) cut (c) broken (d) closed
  4. 4.True or false: a push button works only while pressed. (a) True (b) False
  5. 5.True or false: a push button springs back when let go. (a) True (b) False
  6. 6.What does a toggle switch do? (a) works only while pressed (b) stays where you flip it (c) closes when tipped over (d) springs back when let go
  7. 7.🔘 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
  8. 8.What does a reed switch do? (a) springs back when let go (b) flips up or down (c) closes when tipped over (d) closes near a magnet
  9. 9.True or false: a toggle switch stays where you flip it. (a) False (b) True
  10. 10.True or false: a slide switch slides side to side. (a) False (b) True
  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 OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  12. 12.🔘 What does a switch do in a circuit? (a) stores current (b) makes electricity (c) changes the voltage (d) opens or closes the loop
  13. 13.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  14. 14.🔘 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
  15. 15.True or false: a reed switch closes near a magnet. (a) False (b) True
  16. 16.🔘 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?
  17. 17.🔘 Which kind of switch works only while pressed? (a) a toggle switch (b) a push button (c) a slide switch (d) a reed switch
  18. 18.🔘 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) No (b) Yes
  19. 19.True or false: a toggle switch closes when tipped over. (a) True (b) False
  20. 20.What does a tilt switch do? (a) closes when tipped over (b) stays where you flip it (c) slides side to side (d) works only while pressed
  21. 21.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a reed switch (c) a push button (d) a tilt switch
  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 OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
  23. 23.What does a toggle switch do? (a) closes near a magnet (b) flips up or down (c) works only while pressed (d) slides side to side
  24. 24.🔘 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
  25. 25.What does a slide switch do? (a) closes when tipped over (b) flips up or down (c) stays where you flip it (d) slides side to side
  26. 26.🔘 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
  27. 27.🔘 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
  28. 28.True or false: a toggle switch flips up or down. (a) True (b) False
  29. 29.🔘 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
  30. 30.🔘 Which kind of switch closes when tipped over? (a) a tilt switch (b) a toggle switch (c) a slide switch (d) a reed switch
  31. 31.🔘 Which kind of switch flips up or down? (a) a toggle switch (b) a push button (c) a reed switch (d) a slide switch
  32. 32.True or false: a tilt switch closes when tipped over. (a) True (b) False
  33. 33.True or false: a slide switch springs back when let go. (a) True (b) False
  34. 34.True or false: a reed switch stays where you flip it. (a) False (b) True
  35. 35.🔘 Which kind of switch slides side to side? (a) a reed switch (b) a tilt switch (c) a slide switch (d) a push button
  36. 36.🔘 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
  37. 37.🔘 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) No (b) Yes
  38. 38.🔘 Two switches are in series. When does the bulb glow? (a) when either is ON (b) when both are OFF (c) never (d) when both are ON
  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 ON, B is ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  40. 40.What does a push button do? (a) closes near a magnet (b) slides side to side (c) works only while pressed (d) flips up or down

Answer key

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

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