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Electronics Worksheet: Switches in a Circuit

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

Answer key

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

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