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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 349 · 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.🔘 Which kind of switch works only while pressed? (a) a slide switch (b) a reed switch (c) a toggle switch (d) a push button
  2. 2.🔘 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
  3. 3.🔘 When a switch is ON, the circuit is … (a) broken (b) closed (c) cut (d) open
  4. 4.True or false: a reed switch works only while pressed. (a) False (b) True
  5. 5.🔘 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
  6. 6.True or false: a push button slides side to side. (a) True (b) False
  7. 7.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) never (c) only when both are OFF (d) when either is ON
  8. 8.🔘 What does a switch do in a circuit? (a) changes the voltage (b) opens or closes the loop (c) stores current (d) makes electricity
  9. 9.What does a tilt switch do? (a) closes near a magnet (b) flips up or down (c) closes when tipped over (d) stays where you flip it
  10. 10.🔘 Which kind of switch flips up or down? (a) a toggle switch (b) a reed switch (c) a tilt switch (d) a slide 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 ON and C is ON. Does the bulb glow? (a) No (b) Yes
  12. 12.True or false: a tilt switch closes when tipped over. (a) False (b) True
  13. 13.True or false: a push button closes near a magnet. (a) True (b) False
  14. 14.🔘 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
  15. 15.🔘 Which kind of switch closes when tipped over? (a) a tilt switch (b) a reed switch (c) a push button (d) a toggle switch
  16. 16.🔘 A bulb and a cell are joined through 2 switches on 2 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?
  17. 17.True or false: a tilt switch springs back when let go. (a) True (b) False
  18. 18.🔘 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?
  19. 19.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a reed switch (c) a push button (d) a tilt switch
  20. 20.True or false: a reed switch closes near a magnet. (a) False (b) True
  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 OFF, B is OFF, C is OFF and D is ON. Does the bulb glow? (a) No (b) Yes
  22. 22.🔘 Two switches are in series. When does the bulb glow? (a) when either is ON (b) never (c) when both are OFF (d) when both are ON
  23. 23.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  24. 24.What does a push button do? (a) springs back when let go (b) flips up or down (c) closes when tipped over (d) closes near a magnet
  25. 25.What does a toggle switch do? (a) slides side to side (b) stays where you flip it (c) closes when tipped over (d) springs back when let go
  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) No (b) Yes
  27. 27.🔘 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) No (b) Yes
  28. 28.True or false: a toggle switch slides side to side. (a) True (b) False
  29. 29.🔘 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) No (b) Yes
  30. 30.🔘 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?
  31. 31.🔘 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?
  32. 32.🔘 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) No (b) Yes
  33. 33.🔘 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?
  34. 34.🔘 Which kind of switch slides side to side? (a) a tilt switch (b) a toggle switch (c) a slide switch (d) a push button
  35. 35.🔘 Which kind of switch stays where you flip it? (a) a toggle switch (b) a push button (c) a slide switch (d) a tilt switch
  36. 36.🔘 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
  37. 37.What does a reed switch do? (a) closes near a magnet (b) flips up or down (c) closes when tipped over (d) slides side to side
  38. 38.True or false: a slide switch springs back when let go. (a) True (b) False
  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 OFF, C is OFF and D is OFF. Does the bulb glow? (a) Yes (b) No
  40. 40.True or false: a slide switch closes near a magnet. (a) True (b) False

Answer key

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

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