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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 97 · 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 OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  2. 2.🔘 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
  3. 3.🔘 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?
  4. 4.🔘 When a switch is ON, the circuit is … (a) closed (b) open (c) cut (d) broken
  5. 5.True or false: a slide switch stays where you flip it. (a) False (b) True
  6. 6.🔘 Which kind of switch flips up or down? (a) a toggle switch (b) a reed switch (c) a tilt switch (d) a push button
  7. 7.🔘 What does a switch do in a circuit? (a) opens or closes the loop (b) stores current (c) makes electricity (d) changes the voltage
  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 OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  9. 9.What does a reed switch do? (a) stays where you flip it (b) works only while pressed (c) closes near a magnet (d) springs back when let go
  10. 10.🔘 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) Yes (b) No
  11. 11.What does a push button do? (a) flips up or down (b) closes near a magnet (c) works only while pressed (d) slides side to side
  12. 12.🔘 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
  13. 13.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) only when both are OFF (c) when either is ON (d) never
  14. 14.What does a slide switch do? (a) closes near a magnet (b) works only while pressed (c) stays where you flip it (d) slides side to side
  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 ON, B is OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
  16. 16.True or false: a reed switch closes near a magnet. (a) True (b) False
  17. 17.🔘 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) Yes (b) No
  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 ON and C is OFF. Does the bulb glow? (a) No (b) Yes
  19. 19.True or false: a slide switch springs back when let go. (a) True (b) False
  20. 20.🔘 Which kind of switch closes when tipped over? (a) a slide switch (b) a push button (c) a toggle switch (d) a tilt 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 ON and C is ON. Does the bulb glow? (a) Yes (b) No
  22. 22.True or false: a push button closes when tipped over. (a) True (b) False
  23. 23.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) when either is ON (c) never (d) when both are ON
  24. 24.🔘 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
  25. 25.True or false: a reed switch closes when tipped over. (a) False (b) True
  26. 26.True or false: a slide switch works only while pressed. (a) False (b) True
  27. 27.True or false: a reed switch slides side to side. (a) False (b) True
  28. 28.🔘 Which kind of switch works only while pressed? (a) a tilt switch (b) a reed switch (c) a push button (d) a toggle switch
  29. 29.🔘 Which kind of switch closes near a magnet? (a) a tilt switch (b) a toggle switch (c) a push button (d) a reed switch
  30. 30.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  31. 31.🔘 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) No (b) Yes
  32. 32.True or false: a tilt switch works only while pressed. (a) True (b) False
  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 ON and C is ON. Does the bulb glow? (a) No (b) Yes
  34. 34.True or false: a reed switch works only while pressed. (a) False (b) True
  35. 35.🔘 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
  36. 36.True or false: a push button flips up or down. (a) False (b) True
  37. 37.What does a tilt switch do? (a) closes when tipped over (b) works only while pressed (c) springs back when let go (d) stays where you flip it
  38. 38.🔘 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 ON, C is OFF and D is OFF. Does the bulb glow? (a) No (b) Yes
  39. 39.🔘 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 ON, C is OFF and D is ON. Does the bulb glow? (a) Yes (b) No
  40. 40.🔘 Which kind of switch slides side to side? (a) a slide switch (b) a toggle switch (c) a tilt switch (d) a reed switch

Answer key

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

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