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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 83 · 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 ON, B is OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  2. 2.🔘 What does a switch do in a circuit? (a) makes electricity (b) changes the voltage (c) stores current (d) opens or closes the loop
  3. 3.🔘 When a switch is ON, the circuit is … (a) closed (b) broken (c) cut (d) open
  4. 4.What does a slide switch do? (a) closes near a magnet (b) slides side to side (c) works only while pressed (d) stays where you flip it
  5. 5.🔘 Which kind of switch closes when tipped over? (a) a push button (b) a slide switch (c) a tilt switch (d) a toggle switch
  6. 6.🔘 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
  7. 7.True or false: a toggle switch closes near a magnet. (a) False (b) True
  8. 8.True or false: a push button closes when tipped over. (a) True (b) False
  9. 9.🔘 Which kind of switch springs back when let go? (a) a toggle switch (b) a push button (c) a slide switch (d) a tilt switch
  10. 10.🔘 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?
  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.🔘 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
  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 ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  14. 14.🔘 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
  15. 15.What does a tilt switch do? (a) flips up or down (b) works only while pressed (c) slides side to side (d) closes when tipped over
  16. 16.🔘 A bulb and a cell are joined through 4 switches on 4 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?
  17. 17.🔘 Two switches are in series. When does the bulb glow? (a) never (b) when both are ON (c) when either is ON (d) when both are OFF
  18. 18.🔘 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
  19. 19.🔘 Which kind of switch flips up or down? (a) a toggle switch (b) a reed switch (c) a push button (d) a slide switch
  20. 20.🔘 Which kind of switch slides side to side? (a) a tilt switch (b) a slide switch (c) a push button (d) a toggle switch
  21. 21.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  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 OFF. Does the bulb glow? (a) Yes (b) No
  23. 23.🔘 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) No (b) Yes
  24. 24.What does a push button do? (a) flips up or down (b) slides side to side (c) closes when tipped over (d) works only while pressed
  25. 25.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) when either is ON (b) only when both are OFF (c) never (d) only when both are ON
  26. 26.What does a toggle switch do? (a) slides side to side (b) flips up or down (c) springs back when let go (d) closes when tipped over
  27. 27.True or false: a push button flips up or down. (a) True (b) False
  28. 28.🔘 Which kind of switch stays where you flip it? (a) a toggle switch (b) a tilt switch (c) a push button (d) a slide 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 ON and C is ON. Does the bulb glow? (a) Yes (b) No
  30. 30.What does a reed switch do? (a) closes when tipped over (b) stays where you flip it (c) works only while pressed (d) closes near a magnet
  31. 31.What does a toggle switch do? (a) closes when tipped over (b) stays where you flip it (c) closes near a magnet (d) slides side to side
  32. 32.🔘 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) No (b) Yes
  33. 33.🔘 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
  34. 34.🔘 Which kind of switch closes near a magnet? (a) a tilt switch (b) a reed switch (c) a push button (d) a toggle switch
  35. 35.What does a push button do? (a) closes near a magnet (b) stays where you flip it (c) springs back when let go (d) slides side to side
  36. 36.True or false: a slide switch stays where you flip it. (a) True (b) False
  37. 37.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  38. 38.True or false: a toggle switch flips up or down. (a) True (b) False
  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 ON. Does the bulb glow? (a) Yes (b) No
  40. 40.True or false: a push button springs back when let go. (a) True (b) False

Answer key

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

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