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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 788 · 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 ON, B is OFF and C is ON. Does the bulb glow? (a) Yes (b) No
  2. 2.True or false: a toggle switch springs back when let go. (a) False (b) True
  3. 3.What does a push button do? (a) flips up or down (b) closes when tipped over (c) springs back when let go (d) slides side to side
  4. 4.What does a slide switch do? (a) stays where you flip it (b) slides side to side (c) springs back when let go (d) closes when tipped over
  5. 5.🔘 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
  6. 6.🔘 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
  7. 7.🔘 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?
  8. 8.True or false: a reed switch flips up or down. (a) True (b) False
  9. 9.True or false: a push button works only while pressed. (a) True (b) False
  10. 10.🔘 Two switches are in series. When does the bulb glow? (a) never (b) when either is ON (c) when both are ON (d) when both are OFF
  11. 11.What does a toggle switch do? (a) springs back when let go (b) closes when tipped over (c) stays where you flip it (d) slides side to side
  12. 12.🔘 Which kind of switch springs back when let go? (a) a toggle switch (b) a slide switch (c) a reed switch (d) a push button
  13. 13.🔘 Which kind of switch slides side to side? (a) a reed switch (b) a slide switch (c) a toggle switch (d) a push button
  14. 14.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  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 ON and C is ON. Does the bulb glow? (a) No (b) Yes
  16. 16.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  17. 17.True or false: a reed switch works only while pressed. (a) True (b) False
  18. 18.🔘 What does a switch do in a circuit? (a) stores current (b) opens or closes the loop (c) changes the voltage (d) makes electricity
  19. 19.🔘 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) No (b) Yes
  20. 20.🔘 When a switch is ON, the circuit is … (a) open (b) closed (c) broken (d) cut
  21. 21.What does a reed switch do? (a) closes near a magnet (b) slides side to side (c) works only while pressed (d) stays where you flip it
  22. 22.What does a toggle switch do? (a) works only while pressed (b) closes near a magnet (c) flips up or down (d) closes when tipped over
  23. 23.🔘 Which kind of switch stays where you flip it? (a) a push button (b) a toggle switch (c) a slide switch (d) a tilt switch
  24. 24.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  25. 25.True or false: a reed switch stays where you flip it. (a) False (b) True
  26. 26.🔘 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 ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  27. 27.What does a tilt switch do? (a) works only while pressed (b) closes when tipped over (c) closes near a magnet (d) springs back when let go
  28. 28.True or false: a slide switch flips up or down. (a) False (b) True
  29. 29.🔘 Which kind of switch flips up or down? (a) a tilt switch (b) a reed switch (c) a push button (d) a toggle switch
  30. 30.🔘 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) No (b) Yes
  31. 31.🔘 A bulb and a cell are joined through 4 switches on 4 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?
  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) Yes (b) No
  33. 33.🔘 A bulb and a cell are joined through 5 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.🔘 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
  35. 35.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) never (b) only when both are ON (c) when either is ON (d) only when both are OFF
  36. 36.True or false: a push button slides side to side. (a) True (b) False
  37. 37.🔘 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 ON and D is ON. Does the bulb glow? (a) Yes (b) No
  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 OFF, B is ON and C is ON. Does the bulb glow? (a) No (b) Yes
  39. 39.🔘 Which kind of switch closes when tipped over? (a) a slide switch (b) a tilt switch (c) a push button (d) a reed switch
  40. 40.🔘 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?

Answer key

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

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