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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 703 · 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.🔘 What does a switch do in a circuit? (a) changes the voltage (b) makes electricity (c) stores current (d) opens or closes the loop
  2. 2.What does a tilt switch do? (a) stays where you flip it (b) closes when tipped over (c) flips up or down (d) slides side to side
  3. 3.What does a reed switch do? (a) closes when tipped over (b) slides side to side (c) closes near a magnet (d) stays where you flip it
  4. 4.🔘 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?
  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) Yes (b) No
  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 OFF, C is OFF and D is OFF. Does the bulb glow? (a) Yes (b) No
  7. 7.🔘 Which kind of switch works only while pressed? (a) a toggle switch (b) a push button (c) a tilt switch (d) a reed switch
  8. 8.🔘 Which kind of switch closes when tipped over? (a) a toggle switch (b) a reed switch (c) a push button (d) a tilt switch
  9. 9.🔘 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
  10. 10.🔘 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?
  11. 11.True or false: a slide switch flips up or down. (a) True (b) False
  12. 12.True or false: a reed switch springs back when let go. (a) True (b) False
  13. 13.🔘 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) Yes (b) No
  14. 14.🔘 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 ON and D is OFF. Does the bulb glow? (a) No (b) Yes
  15. 15.True or false: a push button works only while pressed. (a) True (b) False
  16. 16.🔘 Which kind of switch stays where you flip it? (a) a tilt switch (b) a push button (c) a toggle switch (d) a reed switch
  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 ON. Does the bulb glow? (a) No (b) Yes
  18. 18.What does a push button do? (a) closes near a magnet (b) stays where you flip it (c) slides side to side (d) springs back when let go
  19. 19.🔘 Which kind of switch flips up or down? (a) a reed switch (b) a toggle switch (c) a tilt switch (d) a push button
  20. 20.🔘 Which kind of switch springs back when let go? (a) a toggle switch (b) a push button (c) a slide switch (d) a reed switch
  21. 21.🔘 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
  22. 22.🔘 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) No (b) Yes
  23. 23.🔘 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
  24. 24.🔘 Which kind of switch slides side to side? (a) a tilt switch (b) a reed switch (c) a slide switch (d) a push button
  25. 25.What does a slide switch do? (a) slides side to side (b) closes when tipped over (c) stays where you flip it (d) works only while pressed
  26. 26.🔘 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
  27. 27.What does a toggle switch do? (a) closes near a magnet (b) slides side to side (c) closes when tipped over (d) stays where you flip it
  28. 28.True or false: a push button springs back when let go. (a) True (b) False
  29. 29.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) never (c) when both are ON (d) when either is ON
  30. 30.True or false: a reed switch closes near a magnet. (a) True (b) False
  31. 31.🔘 When a switch is ON, the circuit is … (a) open (b) broken (c) closed (d) cut
  32. 32.True or false: a toggle switch slides side to side. (a) False (b) True
  33. 33.🔘 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) No (b) Yes
  34. 34.What does a toggle switch do? (a) closes near a magnet (b) slides side to side (c) flips up or down (d) closes when tipped over
  35. 35.🔘 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?
  36. 36.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  37. 37.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are OFF (b) never (c) only when both are ON (d) when either is ON
  38. 38.True or false: a toggle switch springs back when let go. (a) True (b) False
  39. 39.True or false: a push button closes near a magnet. (a) False (b) True
  40. 40.🔘 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) Yes (b) No

Answer key

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

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