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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 740 · 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 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
  2. 2.🔘 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
  3. 3.🔘 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
  4. 4.What does a push button do? (a) flips up or down (b) closes near a magnet (c) works only while pressed (d) slides side to side
  5. 5.🔘 What does a switch do in a circuit? (a) changes the voltage (b) makes electricity (c) stores current (d) opens or closes the loop
  6. 6.🔘 Which kind of switch springs back when let go? (a) a tilt switch (b) a push button (c) a toggle switch (d) a reed switch
  7. 7.🔘 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) Yes (b) No
  8. 8.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
  9. 9.What does a toggle switch do? (a) works only while pressed (b) slides side to side (c) closes when tipped over (d) stays where you flip it
  10. 10.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are OFF (b) never (c) when either is ON (d) only when both are ON
  11. 11.🔘 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?
  12. 12.🔘 Two switches are in series. When does the bulb glow? (a) when both are ON (b) never (c) when either is ON (d) when both are OFF
  13. 13.What does a reed switch do? (a) stays where you flip it (b) springs back when let go (c) closes near a magnet (d) closes when tipped over
  14. 14.🔘 A bulb and a cell are joined through 4 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
  15. 15.True or false: a push button stays where you flip it. (a) True (b) False
  16. 16.🔘 Which kind of switch works only while pressed? (a) a toggle switch (b) a reed switch (c) a tilt switch (d) a push button
  17. 17.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a slide switch (c) a push button (d) a reed switch
  18. 18.🔘 When a switch is ON, the circuit is … (a) broken (b) open (c) cut (d) closed
  19. 19.🔘 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
  20. 20.True or false: a slide switch flips up or down. (a) False (b) True
  21. 21.🔘 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) Yes (b) No
  22. 22.True or false: a push button slides side to side. (a) True (b) False
  23. 23.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  24. 24.🔘 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) No (b) Yes
  25. 25.🔘 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
  26. 26.🔘 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?
  27. 27.True or false: a slide switch springs back when let go. (a) False (b) True
  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 OFF, B is ON and C is ON. Does the bulb glow? (a) Yes (b) No
  29. 29.🔘 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?
  30. 30.🔘 A bulb and a cell are joined through 6 switches on 6 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?
  31. 31.What does a toggle switch do? (a) flips up or down (b) closes when tipped over (c) closes near a magnet (d) works only while pressed
  32. 32.🔘 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) Yes (b) No
  33. 33.True or false: a reed switch closes near a magnet. (a) False (b) True
  34. 34.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  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 ON, B is ON and C is ON. Does the bulb glow? (a) Yes (b) No
  36. 36.🔘 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) Yes (b) No
  37. 37.🔘 Which kind of switch flips up or down? (a) a reed switch (b) a toggle switch (c) a tilt switch (d) a slide switch
  38. 38.🔘 Which kind of switch stays where you flip it? (a) a reed switch (b) a slide switch (c) a tilt switch (d) a toggle switch
  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 ON, B is OFF, C is ON and D 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 ON. Does the bulb glow? (a) Yes (b) No

Answer key

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

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