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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 725 · 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 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?
  2. 2.🔘 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 OFF, B is OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  3. 3.🔘 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
  4. 4.🔘 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
  5. 5.🔘 Which kind of switch closes near a magnet? (a) a push button (b) a reed switch (c) a tilt switch (d) a toggle switch
  6. 6.🔘 When a switch is ON, the circuit is … (a) broken (b) cut (c) closed (d) open
  7. 7.What does a push button do? (a) works only while pressed (b) slides side to side (c) closes when tipped over (d) stays where you flip it
  8. 8.🔘 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
  9. 9.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
  10. 10.🔘 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
  11. 11.What does a toggle switch do? (a) springs back when let go (b) flips up or down (c) closes near a magnet (d) works only while pressed
  12. 12.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are OFF (b) when either is ON (c) never (d) only when both are ON
  13. 13.True or false: a reed switch works only while pressed. (a) True (b) False
  14. 14.🔘 Which kind of switch works only while pressed? (a) a toggle switch (b) a reed switch (c) a tilt switch (d) a push button
  15. 15.🔘 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
  16. 16.🔘 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
  17. 17.🔘 Which kind of switch slides side to side? (a) a toggle switch (b) a push button (c) a tilt switch (d) a slide switch
  18. 18.🔘 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) Yes (b) No
  19. 19.True or false: a push button slides side to side. (a) False (b) True
  20. 20.🔘 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
  21. 21.🔘 What does a switch do in a circuit? (a) opens or closes the loop (b) stores current (c) makes electricity (d) changes the voltage
  22. 22.What does a reed switch do? (a) slides side to side (b) closes near a magnet (c) springs back when let go (d) closes when tipped over
  23. 23.What does a toggle switch do? (a) stays where you flip it (b) slides side to side (c) works only while pressed (d) springs back when let go
  24. 24.What does a tilt switch do? (a) flips up or down (b) closes near a magnet (c) closes when tipped over (d) works only while pressed
  25. 25.🔘 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) Yes (b) No
  26. 26.🔘 Which kind of switch springs back when let go? (a) a tilt switch (b) a toggle switch (c) a push button (d) a slide switch
  27. 27.🔘 Which kind of switch stays where you flip it? (a) a tilt switch (b) a toggle switch (c) a reed switch (d) a push button
  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 OFF and D is OFF. Does the bulb glow? (a) No (b) Yes
  29. 29.🔘 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
  30. 30.🔘 Which kind of switch closes when tipped over? (a) a push button (b) a tilt switch (c) a toggle switch (d) a slide switch
  31. 31.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  32. 32.🔘 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?
  33. 33.🔘 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) No (b) Yes
  34. 34.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  35. 35.🔘 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
  36. 36.🔘 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
  37. 37.True or false: a reed switch closes near a magnet. (a) False (b) True
  38. 38.True or false: a slide switch flips up or down. (a) False (b) True
  39. 39.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  40. 40.What does a slide switch do? (a) closes when tipped over (b) slides side to side (c) flips up or down (d) springs back when let go

Answer key

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

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