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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 913 · 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 push button works only while pressed. (a) True (b) False
  2. 2.True or false: a toggle switch springs back when let go. (a) True (b) False
  3. 3.True or false: a tilt switch closes when tipped over. (a) False (b) True
  4. 4.🔘 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 ON, C is ON and D is OFF. Does the bulb glow? (a) No (b) Yes
  5. 5.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are OFF (b) only when both are ON (c) when either is ON (d) never
  6. 6.🔘 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
  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 ON and B is ON. Does the bulb glow? (a) Yes (b) No
  8. 8.What does a toggle switch do? (a) springs back when let go (b) works only while pressed (c) closes when tipped over (d) stays where you flip it
  9. 9.True or false: a slide switch stays where you flip it. (a) True (b) False
  10. 10.🔘 What does a switch do in a circuit? (a) changes the voltage (b) opens or closes the loop (c) makes electricity (d) stores current
  11. 11.What does a tilt switch do? (a) closes when tipped over (b) springs back when let go (c) stays where you flip it (d) works only while pressed
  12. 12.🔘 Which kind of switch slides side to side? (a) a reed switch (b) a push button (c) a slide switch (d) a toggle switch
  13. 13.🔘 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
  14. 14.🔘 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 ON and C is ON. Does the bulb glow? (a) No (b) Yes
  15. 15.What does a slide switch do? (a) slides side to side (b) springs back when let go (c) flips up or down (d) closes near a magnet
  16. 16.True or false: a reed switch flips up or down. (a) False (b) True
  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 ON, C is OFF and D is ON. Does the bulb glow? (a) No (b) Yes
  18. 18.🔘 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
  19. 19.🔘 When a switch is ON, the circuit is … (a) broken (b) cut (c) closed (d) open
  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 OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  21. 21.🔘 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
  22. 22.🔘 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
  23. 23.What does a reed switch do? (a) closes near a magnet (b) flips up or down (c) closes when tipped over (d) stays where you flip it
  24. 24.🔘 Which kind of switch flips up or down? (a) a toggle switch (b) a tilt switch (c) a slide switch (d) a push button
  25. 25.🔘 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
  26. 26.🔘 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
  27. 27.🔘 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?
  28. 28.🔘 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
  29. 29.🔘 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?
  30. 30.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a reed switch (c) a slide switch (d) a tilt switch
  31. 31.🔘 Which kind of switch closes when tipped over? (a) a toggle switch (b) a reed switch (c) a push button (d) a tilt switch
  32. 32.🔘 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 ON and C is OFF. Does the bulb glow? (a) No (b) Yes
  33. 33.🔘 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 ON, B is ON and C is OFF. Does the bulb glow? (a) No (b) Yes
  34. 34.True or false: a push button slides side to side. (a) False (b) True
  35. 35.True or false: a push button stays where you flip it. (a) True (b) False
  36. 36.True or false: a tilt switch flips up or down. (a) False (b) True
  37. 37.True or false: a push button springs back when let go. (a) True (b) False
  38. 38.🔘 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
  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 ON, C is ON and D is OFF. Does the bulb glow? (a) Yes (b) No
  40. 40.🔘 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?

Answer key

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

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