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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 380 · 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, 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 ON. Does the bulb glow? (a) Yes (b) No
  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 ON. Does the bulb glow? (a) No (b) Yes
  3. 3.True or false: a push button springs back when let go. (a) True (b) False
  4. 4.🔘 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
  5. 5.What does a reed switch do? (a) closes near a magnet (b) stays where you flip it (c) flips up or down (d) works only while pressed
  6. 6.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  7. 7.🔘 When a switch is ON, the circuit is … (a) cut (b) open (c) closed (d) broken
  8. 8.🔘 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
  9. 9.What does a slide switch do? (a) slides side to side (b) springs back when let go (c) stays where you flip it (d) flips up or down
  10. 10.🔘 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) No (b) Yes
  11. 11.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a push button (c) a tilt switch (d) a reed switch
  12. 12.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) when either is ON (b) only when both are OFF (c) never (d) only when both are ON
  13. 13.🔘 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
  14. 14.🔘 Which kind of switch flips up or down? (a) a toggle switch (b) a tilt switch (c) a push button (d) a slide switch
  15. 15.🔘 Which kind of switch springs back when let go? (a) a slide switch (b) a push button (c) a toggle switch (d) a tilt switch
  16. 16.🔘 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
  17. 17.🔘 Which kind of switch slides side to side? (a) a reed switch (b) a tilt switch (c) a push button (d) a slide switch
  18. 18.🔘 What does a switch do in a circuit? (a) opens or closes the loop (b) changes the voltage (c) makes electricity (d) stores current
  19. 19.🔘 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
  20. 20.🔘 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
  21. 21.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  22. 22.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  23. 23.🔘 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?
  24. 24.🔘 Which kind of switch works only while pressed? (a) a toggle switch (b) a reed switch (c) a slide switch (d) a push button
  25. 25.True or false: a tilt switch closes near a magnet. (a) False (b) True
  26. 26.🔘 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 OFF and D is OFF. Does the bulb glow? (a) No (b) Yes
  27. 27.What does a push button do? (a) flips up or down (b) closes near a magnet (c) works only while pressed (d) stays where you flip it
  28. 28.🔘 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?
  29. 29.What does a push button do? (a) slides side to side (b) springs back when let go (c) closes when tipped over (d) stays where you flip it
  30. 30.True or false: a push button flips up or down. (a) True (b) False
  31. 31.🔘 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
  32. 32.🔘 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 OFF and D is OFF. Does the bulb glow? (a) No (b) Yes
  33. 33.What does a tilt switch do? (a) stays where you flip it (b) works only while pressed (c) closes near a magnet (d) closes when tipped over
  34. 34.True or false: a reed switch flips up or down. (a) False (b) True
  35. 35.🔘 Which kind of switch stays where you flip it? (a) a reed switch (b) a tilt switch (c) a toggle switch (d) a push button
  36. 36.🔘 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
  37. 37.🔘 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
  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 ON, B is OFF, C is OFF and D is ON. Does the bulb glow? (a) No (b) Yes
  39. 39.🔘 Which kind of switch closes when tipped over? (a) a push button (b) a reed switch (c) a tilt switch (d) a slide switch
  40. 40.🔘 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

Answer key

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

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