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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 904 · 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.True or false: a tilt switch closes near a magnet. (a) False (b) True
  2. 2.True or false: a reed switch closes near a magnet. (a) True (b) False
  3. 3.🔘 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?
  4. 4.What does a tilt switch do? (a) closes when tipped over (b) stays where you flip it (c) works only while pressed (d) slides side to side
  5. 5.True or false: a toggle switch flips up or down. (a) False (b) True
  6. 6.What does a reed switch do? (a) flips up or down (b) springs back when let go (c) stays where you flip it (d) closes near a magnet
  7. 7.🔘 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
  8. 8.True or false: a push button closes near a magnet. (a) False (b) True
  9. 9.🔘 Which kind of switch flips up or down? (a) a reed switch (b) a toggle switch (c) a slide switch (d) a tilt switch
  10. 10.🔘 Which kind of switch stays where you flip it? (a) a slide switch (b) a toggle switch (c) a push button (d) a tilt switch
  11. 11.🔘 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
  12. 12.What does a toggle switch do? (a) works only while pressed (b) slides side to side (c) springs back when let go (d) stays where you flip it
  13. 13.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  14. 14.🔘 Which kind of switch works only while pressed? (a) a slide switch (b) a toggle switch (c) a push button (d) a tilt switch
  15. 15.What does a slide switch do? (a) stays where you flip it (b) springs back when let go (c) closes when tipped over (d) slides side to side
  16. 16.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  17. 17.🔘 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?
  18. 18.🔘 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 ON and D is ON. Does the bulb glow? (a) No (b) Yes
  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 OFF. Does the bulb glow? (a) Yes (b) No
  20. 20.🔘 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
  21. 21.🔘 Which kind of switch closes near a magnet? (a) a reed switch (b) a tilt switch (c) a toggle switch (d) a push button
  22. 22.🔘 When a switch is ON, the circuit is … (a) cut (b) open (c) broken (d) closed
  23. 23.🔘 What does a switch do in a circuit? (a) stores current (b) makes electricity (c) changes the voltage (d) opens or closes the loop
  24. 24.🔘 A bulb and a cell are joined through 2 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
  25. 25.True or false: a push button works only while pressed. (a) False (b) True
  26. 26.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  27. 27.🔘 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
  28. 28.True or false: a reed switch flips up or down. (a) False (b) True
  29. 29.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) only when both are OFF (c) when either is ON (d) never
  30. 30.What does a push button do? (a) closes when tipped over (b) works only while pressed (c) stays where you flip it (d) flips up or down
  31. 31.🔘 Two switches are in series. When does the bulb glow? (a) never (b) when both are OFF (c) when either is ON (d) when both are ON
  32. 32.🔘 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) No (b) Yes
  33. 33.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  34. 34.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  35. 35.🔘 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
  36. 36.🔘 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 ON, C is OFF and D is ON. Does the bulb glow? (a) Yes (b) No
  37. 37.🔘 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
  38. 38.🔘 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
  39. 39.🔘 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
  40. 40.True or false: a push button springs back when let go. (a) False (b) True

Answer key

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

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