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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 150 · 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 closes near a magnet. (a) False (b) True
  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 OFF, B is ON and C is ON. Does the bulb glow? (a) No (b) Yes
  3. 3.🔘 Which kind of switch works only while pressed? (a) a reed switch (b) a slide switch (c) a push button (d) a toggle switch
  4. 4.🔘 What does a switch do in a circuit? (a) opens or closes the loop (b) stores current (c) makes electricity (d) changes the voltage
  5. 5.🔘 Which kind of switch stays where you flip it? (a) a push button (b) a reed switch (c) a toggle switch (d) a slide switch
  6. 6.🔘 Two switches are in series. When does the bulb glow? (a) when either is ON (b) when both are OFF (c) when both are ON (d) never
  7. 7.🔘 When a switch is ON, the circuit is … (a) cut (b) open (c) broken (d) closed
  8. 8.True or false: a toggle switch flips up or down. (a) False (b) True
  9. 9.🔘 Which kind of switch slides side to side? (a) a push button (b) a tilt switch (c) a reed switch (d) a slide switch
  10. 10.🔘 A bulb and a cell are joined through 3 switches on 3 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?
  11. 11.🔘 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
  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 OFF. Does the bulb glow? (a) No (b) Yes
  13. 13.🔘 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
  14. 14.🔘 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
  15. 15.🔘 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) No (b) Yes
  16. 16.What does a toggle switch do? (a) stays where you flip it (b) closes near a magnet (c) slides side to side (d) springs back when let go
  17. 17.🔘 Which kind of switch closes near a magnet? (a) a push button (b) a toggle switch (c) a slide switch (d) a reed switch
  18. 18.What does a push button do? (a) works only while pressed (b) slides side to side (c) closes near a magnet (d) flips up or down
  19. 19.What does a toggle switch do? (a) springs back when let go (b) works only while pressed (c) flips up or down (d) closes when tipped over
  20. 20.🔘 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
  21. 21.🔘 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?
  22. 22.What does a push button do? (a) closes when tipped over (b) slides side to side (c) springs back when let go (d) flips up or down
  23. 23.True or false: a tilt switch slides side to side. (a) False (b) True
  24. 24.🔘 Which kind of switch closes when tipped over? (a) a toggle switch (b) a reed switch (c) a tilt switch (d) a slide switch
  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 OFF, B is ON, C is OFF and D is OFF. Does the bulb glow? (a) No (b) Yes
  26. 26.🔘 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
  27. 27.What does a slide switch do? (a) flips up or down (b) stays where you flip it (c) closes near a magnet (d) slides side to side
  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 ON, B is ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  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 OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  30. 30.What does a reed switch do? (a) works only while pressed (b) slides side to side (c) closes near a magnet (d) stays where you flip it
  31. 31.What does a tilt switch do? (a) springs back when let go (b) closes near a magnet (c) closes when tipped over (d) slides side to side
  32. 32.🔘 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 ON and D is OFF. Does the bulb glow? (a) No (b) Yes
  33. 33.🔘 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
  34. 34.True or false: a tilt switch closes when tipped over. (a) True (b) False
  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.True or false: a slide switch closes near a magnet. (a) False (b) True
  37. 37.🔘 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
  38. 38.True or false: a toggle switch closes near a magnet. (a) True (b) False
  39. 39.🔘 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?
  40. 40.🔘 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) No (b) Yes

Answer key

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

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