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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 215 · 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 ON and C is ON. Does the bulb glow? (a) Yes (b) No
  2. 2.🔘 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?
  3. 3.🔘 When a switch is ON, the circuit is … (a) broken (b) open (c) cut (d) closed
  4. 4.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) when both are ON (c) when either is ON (d) never
  5. 5.🔘 Which kind of switch stays where you flip it? (a) a push button (b) a toggle switch (c) a tilt switch (d) a reed switch
  6. 6.True or false: a slide switch flips up or down. (a) False (b) True
  7. 7.What does a slide switch do? (a) slides side to side (b) stays where you flip it (c) springs back when let go (d) works only while pressed
  8. 8.🔘 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
  9. 9.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) when either is ON (c) only when both are OFF (d) never
  10. 10.🔘 Which kind of switch works only while pressed? (a) a toggle switch (b) a reed switch (c) a push button (d) a tilt switch
  11. 11.🔘 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
  12. 12.What does a reed switch do? (a) works only while pressed (b) closes when tipped over (c) closes near a magnet (d) slides side to side
  13. 13.🔘 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?
  14. 14.🔘 Which kind of switch closes when tipped over? (a) a reed switch (b) a tilt switch (c) a toggle switch (d) a push button
  15. 15.What does a tilt switch do? (a) works only while pressed (b) stays where you flip it (c) closes when tipped over (d) springs back when let go
  16. 16.🔘 What does a switch do in a circuit? (a) changes the voltage (b) stores current (c) opens or closes the loop (d) makes electricity
  17. 17.🔘 Which kind of switch slides side to side? (a) a tilt switch (b) a toggle switch (c) a reed switch (d) a slide switch
  18. 18.🔘 Which kind of switch springs back when let go? (a) a reed switch (b) a push button (c) a slide switch (d) a toggle switch
  19. 19.🔘 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
  20. 20.🔘 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
  21. 21.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  22. 22.True or false: a push button slides side to side. (a) True (b) False
  23. 23.🔘 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
  24. 24.True or false: a tilt switch springs back when let go. (a) False (b) True
  25. 25.🔘 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
  26. 26.🔘 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
  27. 27.🔘 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
  28. 28.🔘 Which kind of switch closes near a magnet? (a) a reed switch (b) a toggle switch (c) a tilt switch (d) a push button
  29. 29.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  30. 30.What does a toggle switch do? (a) flips up or down (b) springs back when let go (c) works only while pressed (d) slides side to side
  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 OFF, B is OFF, C is OFF and D is OFF. Does the bulb glow? (a) Yes (b) No
  32. 32.🔘 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
  33. 33.What does a push button do? (a) slides side to side (b) flips up or down (c) stays where you flip it (d) springs back when let go
  34. 34.True or false: a reed switch stays where you flip it. (a) True (b) False
  35. 35.True or false: a reed switch closes near a magnet. (a) True (b) False
  36. 36.True or false: a push button springs back when let go. (a) False (b) True
  37. 37.True or false: a tilt switch closes when tipped over. (a) True (b) False
  38. 38.True or false: a toggle switch slides side to side. (a) False (b) True
  39. 39.What does a toggle switch do? (a) works only while pressed (b) slides side to side (c) stays where you flip it (d) springs back when let go
  40. 40.🔘 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?

Answer key

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

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