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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 381 · 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 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) Yes (b) No
  2. 2.🔘 What does a switch do in a circuit? (a) makes electricity (b) opens or closes the loop (c) changes the voltage (d) stores current
  3. 3.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  4. 4.🔘 When a switch is ON, the circuit is … (a) broken (b) open (c) closed (d) cut
  5. 5.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) when either is ON (c) never (d) only when both are OFF
  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 ON, C is ON and D is OFF. Does the bulb glow? (a) Yes (b) No
  7. 7.🔘 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
  8. 8.True or false: a toggle switch stays where you flip it. (a) True (b) False
  9. 9.🔘 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
  10. 10.What does a tilt switch do? (a) stays where you flip it (b) slides side to side (c) closes when tipped over (d) closes near a magnet
  11. 11.What does a push button do? (a) closes near a magnet (b) slides side to side (c) works only while pressed (d) flips up or down
  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 ON. Does the bulb glow? (a) No (b) Yes
  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 ON, B is ON and C is ON. Does the bulb glow? (a) Yes (b) No
  14. 14.🔘 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?
  15. 15.🔘 Which kind of switch closes when tipped over? (a) a tilt switch (b) a push button (c) a reed switch (d) a toggle switch
  16. 16.True or false: a push button closes near a magnet. (a) True (b) False
  17. 17.What does a slide switch do? (a) springs back when let go (b) slides side to side (c) closes when tipped over (d) flips up or down
  18. 18.What does a reed switch do? (a) closes near a magnet (b) slides side to side (c) works only while pressed (d) closes when tipped over
  19. 19.🔘 Which kind of switch springs back when let go? (a) a toggle switch (b) a slide switch (c) a push button (d) a reed switch
  20. 20.What does a toggle switch do? (a) stays where you flip it (b) closes near a magnet (c) works only while pressed (d) springs back when let go
  21. 21.🔘 A bulb and a cell are joined through 5 switches on 5 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?
  22. 22.🔘 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?
  23. 23.🔘 Which kind of switch stays where you flip it? (a) a reed switch (b) a push button (c) a slide switch (d) a toggle switch
  24. 24.🔘 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
  25. 25.🔘 Which kind of switch slides side to side? (a) a slide switch (b) a reed switch (c) a push button (d) a toggle switch
  26. 26.🔘 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
  27. 27.True or false: a tilt switch springs back when let go. (a) False (b) True
  28. 28.True or false: a push button works only while pressed. (a) True (b) False
  29. 29.True or false: a push button flips up or down. (a) False (b) True
  30. 30.🔘 Which kind of switch works only while pressed? (a) a reed switch (b) a toggle switch (c) a slide switch (d) a push button
  31. 31.True or false: a push button stays where you flip it. (a) True (b) False
  32. 32.🔘 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) Yes (b) No
  33. 33.🔘 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
  34. 34.🔘 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
  35. 35.🔘 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?
  36. 36.🔘 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
  37. 37.🔘 Which kind of switch closes near a magnet? (a) a push button (b) a reed switch (c) a tilt switch (d) a slide switch
  38. 38.🔘 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 ON, C is ON and D is ON. Does the bulb glow? (a) No (b) Yes
  39. 39.True or false: a toggle switch flips up or down. (a) True (b) False
  40. 40.🔘 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?

Answer key

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

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