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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 911 · 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.True or false: a slide switch stays where you flip it. (a) True (b) False
  2. 2.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) never (b) when either is ON (c) only when both are OFF (d) only when both are ON
  3. 3.True or false: a toggle switch stays where you flip it. (a) False (b) True
  4. 4.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a push button (c) a reed switch (d) a slide switch
  5. 5.🔘 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
  6. 6.What does a push button do? (a) flips up or down (b) works only while pressed (c) closes when tipped over (d) closes near a magnet
  7. 7.🔘 Which kind of switch works only while pressed? (a) a reed switch (b) a slide switch (c) a push button (d) a tilt switch
  8. 8.🔘 When a switch is ON, the circuit is … (a) closed (b) cut (c) open (d) broken
  9. 9.What does a push button do? (a) closes when tipped over (b) slides side to side (c) flips up or down (d) springs back when let go
  10. 10.True or false: a toggle switch springs back when let go. (a) False (b) True
  11. 11.True or false: a tilt switch closes when tipped over. (a) True (b) False
  12. 12.🔘 What does a switch do in a circuit? (a) changes the voltage (b) opens or closes the loop (c) makes electricity (d) stores current
  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) No (b) Yes
  14. 14.🔘 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?
  15. 15.True or false: a reed switch closes near a magnet. (a) True (b) False
  16. 16.True or false: a reed switch works only while pressed. (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 OFF, B is OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  18. 18.🔘 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) No (b) Yes
  19. 19.🔘 Two switches are in series. When does the bulb glow? (a) when both are ON (b) when either is ON (c) never (d) when both are OFF
  20. 20.🔘 Which kind of switch flips up or down? (a) a reed switch (b) a toggle switch (c) a tilt switch (d) a push button
  21. 21.🔘 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
  22. 22.True or false: a reed switch slides side to side. (a) True (b) False
  23. 23.What does a tilt switch do? (a) slides side to side (b) flips up or down (c) stays where you flip it (d) closes when tipped over
  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 ON and C is ON. Does the bulb glow? (a) No (b) Yes
  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 OFF, B is ON and C is OFF. Does the bulb glow? (a) No (b) Yes
  26. 26.🔘 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
  27. 27.What does a toggle switch do? (a) springs back when let go (b) closes when tipped over (c) stays where you flip it (d) works only while pressed
  28. 28.🔘 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
  29. 29.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  30. 30.🔘 Which kind of switch closes when tipped over? (a) a tilt switch (b) a reed switch (c) a push button (d) a toggle 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 OFF. Does the bulb glow? (a) No (b) Yes
  32. 32.True or false: a slide switch slides side to side. (a) True (b) False
  33. 33.🔘 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?
  34. 34.What does a reed switch do? (a) springs back when let go (b) stays where you flip it (c) flips up or down (d) closes near a magnet
  35. 35.🔘 Which kind of switch slides side to side? (a) a slide switch (b) a reed switch (c) a push button (d) a tilt switch
  36. 36.🔘 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
  37. 37.🔘 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
  38. 38.🔘 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
  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 OFF, B is ON, C is OFF and D is OFF. Does the bulb glow? (a) Yes (b) No
  40. 40.True or false: a push button springs back when let go. (a) False (b) True

Answer key

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

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