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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 987 · 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.🔘 When a switch is ON, the circuit is … (a) closed (b) broken (c) open (d) cut
  2. 2.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  3. 3.🔘 Which kind of switch closes near a magnet? (a) a tilt switch (b) a slide switch (c) a reed switch (d) a push button
  4. 4.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) never (c) when either is ON (d) only when both are OFF
  5. 5.True or false: a push button works only while pressed. (a) False (b) True
  6. 6.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) never (c) when both are ON (d) when either is ON
  7. 7.🔘 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 OFF, C is ON and D is OFF. Does the bulb glow? (a) Yes (b) No
  8. 8.🔘 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?
  9. 9.What does a tilt switch do? (a) slides side to side (b) springs back when let go (c) closes when tipped over (d) flips up or down
  10. 10.🔘 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) Yes (b) No
  11. 11.🔘 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?
  12. 12.🔘 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) No (b) Yes
  13. 13.🔘 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
  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 ON, B is ON and C is OFF. Does the bulb glow? (a) No (b) Yes
  15. 15.What does a reed switch do? (a) closes near a magnet (b) closes when tipped over (c) stays where you flip it (d) flips up or down
  16. 16.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  17. 17.🔘 Which kind of switch stays where you flip it? (a) a tilt switch (b) a reed switch (c) a push button (d) a toggle switch
  18. 18.True or false: a slide switch stays where you flip it. (a) False (b) True
  19. 19.🔘 Which kind of switch slides side to side? (a) a reed switch (b) a slide switch (c) a push button (d) a tilt switch
  20. 20.True or false: a slide switch flips up or down. (a) True (b) False
  21. 21.🔘 Which kind of switch flips up or down? (a) a push button (b) a toggle switch (c) a tilt switch (d) a slide switch
  22. 22.What does a slide switch do? (a) stays where you flip it (b) works only while pressed (c) springs back when let go (d) slides side to side
  23. 23.True or false: a tilt switch stays where you flip it. (a) True (b) False
  24. 24.🔘 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
  25. 25.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  26. 26.True or false: a reed switch slides side to side. (a) False (b) True
  27. 27.🔘 Which kind of switch closes when tipped over? (a) a tilt switch (b) a toggle switch (c) a push button (d) a reed switch
  28. 28.🔘 Which kind of switch works only while pressed? (a) a toggle switch (b) a slide switch (c) a push button (d) a tilt switch
  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 ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  30. 30.What does a toggle switch do? (a) closes when tipped over (b) flips up or down (c) works only while pressed (d) springs back when let go
  31. 31.True or false: a reed switch closes near a magnet. (a) True (b) False
  32. 32.🔘 What does a switch do in a circuit? (a) stores current (b) changes the voltage (c) opens or closes the loop (d) makes electricity
  33. 33.True or false: a slide switch springs back when let go. (a) True (b) False
  34. 34.True or false: a push button stays where you flip it. (a) True (b) False
  35. 35.🔘 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
  36. 36.🔘 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) No (b) Yes
  37. 37.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
  38. 38.True or false: a toggle switch stays where you flip it. (a) False (b) True
  39. 39.🔘 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?
  40. 40.🔘 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

Answer key

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

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