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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 446 · 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 reed switch slides side to side. (a) True (b) False
  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 OFF, B is OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  3. 3.🔘 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
  4. 4.🔘 Two switches are in series. When does the bulb glow? (a) when both are ON (b) when either is ON (c) never (d) when both are OFF
  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 ON. Does the bulb glow? (a) No (b) Yes
  6. 6.True or false: a push button stays where you flip it. (a) True (b) False
  7. 7.What does a toggle switch do? (a) slides side to side (b) flips up or down (c) springs back when let go (d) closes when tipped over
  8. 8.🔘 When a switch is ON, the circuit is … (a) closed (b) cut (c) broken (d) open
  9. 9.🔘 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
  10. 10.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  11. 11.True or false: a slide switch slides side to side. (a) True (b) False
  12. 12.What does a slide switch do? (a) works only while pressed (b) stays where you flip it (c) closes near a magnet (d) slides side to side
  13. 13.🔘 Which kind of switch closes when tipped over? (a) a slide switch (b) a push button (c) a toggle switch (d) a tilt switch
  14. 14.True or false: a reed switch stays where you flip it. (a) False (b) True
  15. 15.🔘 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) No (b) Yes
  16. 16.🔘 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
  17. 17.True or false: a reed switch closes near a magnet. (a) False (b) True
  18. 18.🔘 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 ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  19. 19.What does a push button do? (a) closes when tipped over (b) closes near a magnet (c) stays where you flip it (d) springs back when let go
  20. 20.🔘 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 ON and D is OFF. Does the bulb glow? (a) Yes (b) No
  21. 21.🔘 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
  22. 22.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  23. 23.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) when either is ON (b) only when both are ON (c) only when both are OFF (d) never
  24. 24.🔘 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
  25. 25.True or false: a toggle switch closes when tipped over. (a) True (b) False
  26. 26.🔘 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
  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.What does a reed switch do? (a) closes near a magnet (b) stays where you flip it (c) springs back when let go (d) closes when tipped over
  29. 29.What does a toggle switch do? (a) springs back when let go (b) works only while pressed (c) closes near a magnet (d) stays where you flip it
  30. 30.🔘 Which kind of switch works only while pressed? (a) a tilt switch (b) a slide switch (c) a push button (d) a reed switch
  31. 31.🔘 Which kind of switch springs back when let go? (a) a push button (b) a reed switch (c) a tilt switch (d) a toggle switch
  32. 32.What does a tilt switch do? (a) springs back when let go (b) closes when tipped over (c) closes near a magnet (d) stays where you flip it
  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 OFF, B is OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  34. 34.🔘 What does a switch do in a circuit? (a) makes electricity (b) changes the voltage (c) stores current (d) opens or closes the loop
  35. 35.🔘 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) Yes (b) No
  36. 36.🔘 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?
  37. 37.🔘 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?
  38. 38.True or false: a push button closes when tipped over. (a) True (b) False
  39. 39.🔘 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) Yes (b) No
  40. 40.🔘 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

Answer key

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

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