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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 96 · 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.🔘 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?
  2. 2.What does a toggle switch do? (a) closes when tipped over (b) flips up or down (c) springs back when let go (d) works only while pressed
  3. 3.🔘 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?
  4. 4.🔘 What does a switch do in a circuit? (a) changes the voltage (b) stores current (c) opens or closes the loop (d) makes electricity
  5. 5.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  6. 6.What does a slide switch do? (a) slides side to side (b) stays where you flip it (c) closes when tipped over (d) works only while pressed
  7. 7.🔘 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?
  8. 8.🔘 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) Yes (b) No
  9. 9.🔘 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
  10. 10.True or false: a tilt switch stays where you flip it. (a) False (b) True
  11. 11.What does a tilt switch do? (a) works only while pressed (b) flips up or down (c) closes when tipped over (d) springs back when let go
  12. 12.🔘 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
  13. 13.🔘 Which kind of switch closes near a magnet? (a) a slide switch (b) a reed switch (c) a push button (d) a tilt switch
  14. 14.What does a push button do? (a) slides side to side (b) closes near a magnet (c) closes when tipped over (d) works only while pressed
  15. 15.True or false: a push button springs back when let go. (a) True (b) False
  16. 16.🔘 Which kind of switch slides side to side? (a) a reed switch (b) a toggle switch (c) a push button (d) a slide switch
  17. 17.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  18. 18.🔘 Which kind of switch flips up or down? (a) a toggle switch (b) a reed switch (c) a push button (d) a tilt switch
  19. 19.🔘 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 OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  20. 20.What does a reed switch do? (a) closes near a magnet (b) springs back when let go (c) works only while pressed (d) slides side to side
  21. 21.🔘 When a switch is ON, the circuit is … (a) broken (b) closed (c) open (d) cut
  22. 22.🔘 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
  23. 23.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are OFF (b) never (c) when either is ON (d) only when both are ON
  24. 24.True or false: a slide switch closes when tipped over. (a) False (b) True
  25. 25.True or false: a toggle switch closes near a magnet. (a) False (b) True
  26. 26.🔘 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
  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 ON, B is OFF and C is ON. Does the bulb glow? (a) Yes (b) No
  28. 28.True or false: a slide switch flips up or down. (a) True (b) False
  29. 29.🔘 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
  30. 30.True or false: a reed switch closes when tipped over. (a) True (b) False
  31. 31.🔘 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?
  32. 32.What does a toggle switch do? (a) slides side to side (b) springs back when let go (c) stays where you flip it (d) works only while pressed
  33. 33.True or false: a toggle switch stays where you flip it. (a) False (b) True
  34. 34.What does a push button do? (a) flips up or down (b) springs back when let go (c) slides side to side (d) stays where you flip it
  35. 35.🔘 Which kind of switch stays where you flip it? (a) a tilt switch (b) a toggle switch (c) a reed switch (d) a push button
  36. 36.True or false: a reed switch flips up or down. (a) False (b) True
  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 ON and C is ON. Does the bulb glow? (a) Yes (b) No
  38. 38.🔘 Which kind of switch springs back when let go? (a) a reed switch (b) a slide switch (c) a toggle switch (d) a push button
  39. 39.🔘 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?
  40. 40.🔘 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) No (b) Yes

Answer key

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

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