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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 818 · 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 toggle switch closes when tipped over. (a) True (b) False
  2. 2.What does a push button do? (a) stays where you flip it (b) slides side to side (c) closes when tipped over (d) works only while pressed
  3. 3.🔘 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
  4. 4.🔘 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) No (b) Yes
  5. 5.🔘 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
  6. 6.What does a slide switch do? (a) closes near a magnet (b) flips up or down (c) slides side to side (d) stays where you flip it
  7. 7.🔘 Which kind of switch slides side to side? (a) a toggle switch (b) a reed switch (c) a push button (d) a slide switch
  8. 8.🔘 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) No (b) Yes
  9. 9.What does a tilt switch do? (a) stays where you flip it (b) slides side to side (c) flips up or down (d) closes when tipped over
  10. 10.True or false: a tilt switch works only while pressed. (a) True (b) False
  11. 11.🔘 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?
  12. 12.🔘 Which kind of switch springs back when let go? (a) a push button (b) a slide switch (c) a reed switch (d) a toggle switch
  13. 13.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) never (b) only when both are OFF (c) only when both are ON (d) when either is ON
  14. 14.🔘 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) Yes (b) No
  15. 15.🔘 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) No (b) Yes
  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 OFF, B is OFF and C is ON. Does the bulb glow? (a) Yes (b) No
  17. 17.🔘 When a switch is ON, the circuit is … (a) cut (b) closed (c) open (d) broken
  18. 18.🔘 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 ON, C is ON and D is OFF. Does the bulb glow? (a) No (b) Yes
  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 ON and B is OFF. Does the bulb glow? (a) No (b) Yes
  20. 20.True or false: a slide switch slides side to side. (a) True (b) False
  21. 21.🔘 Two switches are in series. When does the bulb glow? (a) when both are ON (b) when either is ON (c) when both are OFF (d) never
  22. 22.🔘 Which kind of switch works only while pressed? (a) a push button (b) a reed switch (c) a slide switch (d) a toggle switch
  23. 23.🔘 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 ON, C is OFF and D is ON. Does the bulb glow? (a) No (b) Yes
  24. 24.🔘 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) No (b) Yes
  25. 25.True or false: a toggle switch slides side to side. (a) False (b) True
  26. 26.What does a push button do? (a) slides side to side (b) springs back when let go (c) stays where you flip it (d) closes when tipped over
  27. 27.What does a reed switch do? (a) springs back when let go (b) closes when tipped over (c) closes near a magnet (d) slides side to side
  28. 28.🔘 Which kind of switch closes near a magnet? (a) a reed switch (b) a tilt switch (c) a push button (d) a toggle switch
  29. 29.True or false: a slide switch closes near a magnet. (a) True (b) False
  30. 30.🔘 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) Yes (b) No
  31. 31.🔘 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?
  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 OFF, B is ON, C is OFF and D is OFF. Does the bulb glow? (a) No (b) Yes
  33. 33.🔘 What does a switch do in a circuit? (a) stores current (b) opens or closes the loop (c) makes electricity (d) changes the voltage
  34. 34.🔘 Which kind of switch closes when tipped over? (a) a reed switch (b) a push button (c) a slide switch (d) a tilt switch
  35. 35.🔘 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?
  36. 36.True or false: a tilt switch closes when tipped over. (a) True (b) False
  37. 37.What does a toggle switch do? (a) springs back when let go (b) works only while pressed (c) slides side to side (d) stays where you flip it
  38. 38.🔘 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
  39. 39.🔘 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) Yes (b) No
  40. 40.🔘 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?

Answer key

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

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