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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 129 · 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 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?
  2. 2.🔘 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
  3. 3.True or false: a toggle switch stays where you flip it. (a) False (b) True
  4. 4.🔘 What does a switch do in a circuit? (a) opens or closes the loop (b) stores current (c) makes electricity (d) changes the voltage
  5. 5.🔘 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) No (b) Yes
  6. 6.🔘 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
  7. 7.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) when either is ON (c) when both are ON (d) never
  8. 8.True or false: a reed switch works only while pressed. (a) True (b) False
  9. 9.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  10. 10.🔘 Which kind of switch works only while pressed? (a) a push button (b) a slide switch (c) a tilt switch (d) a toggle switch
  11. 11.🔘 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) Yes (b) No
  12. 12.True or false: a slide switch stays where you flip it. (a) True (b) False
  13. 13.What does a tilt switch do? (a) closes when tipped over (b) springs back when let go (c) closes near a magnet (d) works only while pressed
  14. 14.🔘 When a switch is ON, the circuit is … (a) cut (b) open (c) closed (d) broken
  15. 15.🔘 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?
  16. 16.What does a push button do? (a) flips up or down (b) closes near a magnet (c) closes when tipped over (d) springs back when let go
  17. 17.🔘 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
  18. 18.True or false: a reed switch stays where you flip it. (a) True (b) False
  19. 19.🔘 Which kind of switch stays where you flip it? (a) a toggle switch (b) a reed switch (c) a slide switch (d) a push button
  20. 20.What does a slide switch do? (a) closes when tipped over (b) flips up or down (c) slides side to side (d) works only while pressed
  21. 21.🔘 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 ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  22. 22.🔘 Which kind of switch springs back when let go? (a) a slide switch (b) a reed switch (c) a tilt switch (d) a push button
  23. 23.True or false: a push button springs back when let go. (a) True (b) False
  24. 24.🔘 Which kind of switch flips up or down? (a) a reed switch (b) a push button (c) a toggle switch (d) a tilt switch
  25. 25.True or false: a tilt switch flips up or down. (a) False (b) True
  26. 26.🔘 Which kind of switch slides side to side? (a) a toggle switch (b) a reed switch (c) a slide switch (d) a push button
  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 OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  28. 28.🔘 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?
  29. 29.What does a reed switch do? (a) flips up or down (b) works only while pressed (c) closes when tipped over (d) closes near a magnet
  30. 30.True or false: a toggle switch flips up or down. (a) False (b) True
  31. 31.What does a toggle switch do? (a) springs back when let go (b) stays where you flip it (c) closes near a magnet (d) works only while pressed
  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 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 ON and B is ON. Does the bulb glow? (a) No (b) Yes
  34. 34.🔘 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?
  35. 35.🔘 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
  36. 36.True or false: a push button stays where you flip it. (a) True (b) False
  37. 37.🔘 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) Yes (b) No
  38. 38.🔘 Which kind of switch closes near a magnet? (a) a reed switch (b) a push button (c) a toggle switch (d) a tilt switch
  39. 39.🔘 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?
  40. 40.True or false: a reed switch springs back when let go. (a) True (b) False

Answer key

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

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