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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 106 · 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 ON and C is ON. Does the bulb glow? (a) Yes (b) No
  2. 2.🔘 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 ON, C is OFF and D is ON. Does the bulb glow? (a) Yes (b) No
  3. 3.🔘 What does a switch do in a circuit? (a) opens or closes the loop (b) changes the voltage (c) stores current (d) makes electricity
  4. 4.🔘 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) Yes (b) No
  5. 5.🔘 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
  6. 6.🔘 When a switch is ON, the circuit is … (a) broken (b) cut (c) closed (d) open
  7. 7.🔘 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?
  8. 8.True or false: a toggle switch works only while pressed. (a) True (b) False
  9. 9.🔘 Two switches are in series. When does the bulb glow? (a) when either is ON (b) when both are ON (c) when both are OFF (d) never
  10. 10.What does a slide switch do? (a) stays where you flip it (b) closes near a magnet (c) flips up or down (d) slides side to side
  11. 11.🔘 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
  12. 12.🔘 Which kind of switch works only while pressed? (a) a reed switch (b) a slide switch (c) a push button (d) a toggle switch
  13. 13.🔘 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) Yes (b) No
  14. 14.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  15. 15.True or false: a push button flips up or down. (a) False (b) True
  16. 16.🔘 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
  17. 17.True or false: a reed switch flips up or down. (a) False (b) True
  18. 18.🔘 Which kind of switch stays where you flip it? (a) a tilt switch (b) a slide switch (c) a reed switch (d) a toggle switch
  19. 19.What does a reed switch do? (a) springs back when let go (b) closes near a magnet (c) stays where you flip it (d) flips up or down
  20. 20.True or false: a reed switch closes near a magnet. (a) True (b) False
  21. 21.🔘 Which kind of switch springs back when let go? (a) a push button (b) a reed switch (c) a toggle switch (d) a slide switch
  22. 22.🔘 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
  23. 23.🔘 Which kind of switch closes when tipped over? (a) a tilt switch (b) a reed switch (c) a toggle switch (d) a push button
  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 ON, B is OFF and C is OFF. 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.True or false: a toggle switch closes when tipped over. (a) False (b) True
  27. 27.What does a push button do? (a) closes when tipped over (b) springs back when let go (c) flips up or down (d) stays where you flip it
  28. 28.🔘 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 ON and D is OFF. Does the bulb glow? (a) Yes (b) No
  29. 29.True or false: a reed switch stays where you flip it. (a) False (b) True
  30. 30.🔘 Which kind of switch flips up or down? (a) a toggle switch (b) a reed switch (c) a push button (d) a tilt switch
  31. 31.What does a push button do? (a) stays where you flip it (b) closes when tipped over (c) works only while pressed (d) closes near a magnet
  32. 32.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) when either is ON (c) only when both are OFF (d) never
  33. 33.🔘 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?
  34. 34.🔘 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?
  35. 35.🔘 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
  36. 36.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
  37. 37.🔘 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
  38. 38.True or false: a tilt switch flips up or down. (a) True (b) False
  39. 39.🔘 Which kind of switch slides side to side? (a) a tilt switch (b) a toggle switch (c) a push button (d) a slide switch
  40. 40.What does a tilt switch do? (a) slides side to side (b) stays where you flip it (c) closes when tipped over (d) closes near a magnet

Answer key

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

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