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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 408 · 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.🔘 Which kind of switch flips up or down? (a) a slide switch (b) a tilt switch (c) a push button (d) a toggle switch
  2. 2.🔘 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?
  3. 3.🔘 What does a switch do in a circuit? (a) makes electricity (b) opens or closes the loop (c) changes the voltage (d) stores current
  4. 4.🔘 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?
  5. 5.🔘 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
  6. 6.🔘 Two switches are in series. When does the bulb glow? (a) when either is ON (b) never (c) when both are OFF (d) when both are ON
  7. 7.🔘 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) only when both are ON (d) never
  8. 8.What does a slide switch do? (a) stays where you flip it (b) closes when tipped over (c) slides side to side (d) works only while pressed
  9. 9.🔘 A bulb and a cell are joined through 5 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
  10. 10.🔘 Which kind of switch stays where you flip it? (a) a reed switch (b) a toggle switch (c) a push button (d) a tilt switch
  11. 11.True or false: a toggle switch springs back when let go. (a) True (b) False
  12. 12.🔘 Which kind of switch springs back when let go? (a) a reed switch (b) a tilt switch (c) a slide switch (d) a push button
  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 OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  14. 14.🔘 When a switch is ON, the circuit is … (a) broken (b) open (c) closed (d) cut
  15. 15.🔘 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) No (b) Yes
  16. 16.🔘 Which kind of switch closes when tipped over? (a) a push button (b) a reed switch (c) a tilt switch (d) a toggle switch
  17. 17.🔘 Which kind of switch works only while pressed? (a) a reed switch (b) a tilt switch (c) a slide switch (d) a push button
  18. 18.What does a toggle switch do? (a) works only while pressed (b) closes near a magnet (c) closes when tipped over (d) flips up or down
  19. 19.🔘 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) No (b) Yes
  20. 20.What does a toggle switch do? (a) stays where you flip it (b) closes near a magnet (c) works only while pressed (d) closes when tipped over
  21. 21.🔘 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) No (b) Yes
  22. 22.What does a reed switch do? (a) closes near a magnet (b) stays where you flip it (c) works only while pressed (d) slides side to side
  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) Yes (b) No
  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) No (b) Yes
  25. 25.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  26. 26.What does a push button do? (a) closes near a magnet (b) stays where you flip it (c) flips up or down (d) works only while pressed
  27. 27.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  28. 28.🔘 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
  29. 29.🔘 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?
  30. 30.🔘 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 ON and D is OFF. Does the bulb glow? (a) No (b) Yes
  31. 31.🔘 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) Yes (b) No
  32. 32.🔘 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) No (b) Yes
  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 OFF and C is ON. Does the bulb glow? (a) Yes (b) No
  34. 34.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a slide switch (c) a tilt switch (d) a reed switch
  35. 35.🔘 Which kind of switch slides side to side? (a) a reed switch (b) a tilt switch (c) a push button (d) a slide switch
  36. 36.What does a push button do? (a) slides side to side (b) closes when tipped over (c) closes near a magnet (d) springs back when let go
  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 ON, B is OFF, C is OFF and D is OFF. Does the bulb glow? (a) No (b) Yes
  38. 38.🔘 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
  39. 39.🔘 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 ON and C is OFF. Does the bulb glow? (a) No (b) Yes
  40. 40.What does a tilt switch do? (a) closes when tipped over (b) stays where you flip it (c) springs back when let go (d) works only while pressed

Answer key

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

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