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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 82 · 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 OFF. Does the bulb glow? (a) Yes (b) No
  2. 2.🔘 When a switch is ON, the circuit is … (a) closed (b) open (c) broken (d) cut
  3. 3.What does a reed switch do? (a) stays where you flip it (b) slides side to side (c) closes near a magnet (d) closes when tipped over
  4. 4.🔘 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
  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 OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  6. 6.🔘 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) No (b) Yes
  7. 7.🔘 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 OFF, B is OFF, C is OFF and D is OFF. Does the bulb glow? (a) No (b) Yes
  8. 8.🔘 Which kind of switch closes near a magnet? (a) a reed switch (b) a toggle switch (c) a push button (d) a slide switch
  9. 9.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  10. 10.🔘 Which kind of switch stays where you flip it? (a) a reed switch (b) a toggle switch (c) a tilt switch (d) a push button
  11. 11.🔘 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
  12. 12.What does a slide switch do? (a) works only while pressed (b) stays where you flip it (c) flips up or down (d) slides side to side
  13. 13.True or false: a push button works only while pressed. (a) False (b) True
  14. 14.True or false: a toggle switch flips up or down. (a) True (b) False
  15. 15.🔘 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) No (b) Yes
  16. 16.True or false: a slide switch flips up or down. (a) True (b) False
  17. 17.What does a toggle switch do? (a) slides side to side (b) closes near a magnet (c) works only while pressed (d) stays where you flip it
  18. 18.🔘 Which kind of switch flips up or down? (a) a reed switch (b) a slide switch (c) a push button (d) a toggle switch
  19. 19.🔘 What does a switch do in a circuit? (a) changes the voltage (b) stores current (c) makes electricity (d) opens or closes the loop
  20. 20.What does a tilt switch do? (a) slides side to side (b) stays where you flip it (c) closes when tipped over (d) flips up or down
  21. 21.True or false: a push button stays where you flip it. (a) True (b) False
  22. 22.True or false: a reed switch springs back when let go. (a) False (b) True
  23. 23.What does a push button do? (a) slides side to side (b) works only while pressed (c) closes near a magnet (d) stays where you flip it
  24. 24.🔘 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) No (b) Yes
  25. 25.🔘 Which kind of switch works only while pressed? (a) a reed switch (b) a slide switch (c) a push button (d) a toggle switch
  26. 26.True or false: a slide switch stays where you flip it. (a) False (b) True
  27. 27.🔘 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
  28. 28.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) never (c) when either is ON (d) when both are ON
  29. 29.🔘 Which kind of switch springs back when let go? (a) a push button (b) a toggle switch (c) a reed switch (d) a slide switch
  30. 30.🔘 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
  31. 31.🔘 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 OFF, B is OFF, C is ON and D is OFF. Does the bulb glow? (a) No (b) Yes
  32. 32.🔘 A bulb and a cell are joined through 4 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.True or false: a slide switch slides side to side. (a) False (b) True
  34. 34.🔘 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) never (d) when either is ON
  35. 35.True or false: a tilt switch closes when tipped over. (a) False (b) True
  36. 36.🔘 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?
  37. 37.🔘 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) 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 ON, B is ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  39. 39.🔘 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
  40. 40.🔘 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) No (b) Yes

Answer key

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

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