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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 325 · 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) open (c) cut (d) broken
  2. 2.🔘 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?
  3. 3.True or false: a reed switch closes when tipped over. (a) False (b) True
  4. 4.What does a push button do? (a) stays where you flip it (b) closes near a magnet (c) springs back when let go (d) flips up or down
  5. 5.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  6. 6.🔘 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
  7. 7.🔘 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
  8. 8.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  9. 9.🔘 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) No (b) Yes
  10. 10.True or false: a tilt switch closes near a magnet. (a) True (b) False
  11. 11.🔘 Which kind of switch stays where you flip it? (a) a toggle switch (b) a slide switch (c) a push button (d) a reed switch
  12. 12.What does a tilt switch do? (a) slides side to side (b) flips up or down (c) closes when tipped over (d) works only while pressed
  13. 13.True or false: a push button works only while pressed. (a) False (b) True
  14. 14.🔘 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
  15. 15.🔘 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 OFF and C is OFF. 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 ON and C is ON. Does the bulb glow? (a) No (b) Yes
  17. 17.🔘 Which kind of switch slides side to side? (a) a reed switch (b) a slide switch (c) a toggle switch (d) a push button
  18. 18.🔘 Which kind of switch flips up or down? (a) a slide switch (b) a tilt switch (c) a toggle switch (d) a push button
  19. 19.True or false: a slide switch closes near a magnet. (a) False (b) True
  20. 20.🔘 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?
  21. 21.🔘 Which kind of switch works only while pressed? (a) a tilt switch (b) a slide switch (c) a push button (d) a toggle switch
  22. 22.🔘 Which kind of switch closes when tipped over? (a) a toggle switch (b) a tilt switch (c) a reed switch (d) a push button
  23. 23.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  24. 24.🔘 What does a switch do in a circuit? (a) stores current (b) changes the voltage (c) makes electricity (d) opens or closes the loop
  25. 25.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  26. 26.🔘 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) Yes (b) No
  27. 27.True or false: a toggle switch stays where you flip it. (a) True (b) False
  28. 28.🔘 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) No (b) Yes
  29. 29.True or false: a reed switch flips up or down. (a) False (b) True
  30. 30.True or false: a tilt switch flips up or down. (a) False (b) True
  31. 31.What does a slide switch do? (a) springs back when let go (b) closes when tipped over (c) flips up or down (d) slides side to side
  32. 32.🔘 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
  33. 33.What does a toggle switch do? (a) closes when tipped over (b) slides side to side (c) works only while pressed (d) stays where you flip it
  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 ON and D is OFF. Does the bulb glow? (a) No (b) Yes
  35. 35.What does a toggle switch do? (a) closes when tipped over (b) works only while pressed (c) flips up or down (d) slides side to side
  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 OFF, B is ON and C is ON. Does the bulb glow? (a) Yes (b) No
  37. 37.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  38. 38.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  39. 39.True or false: a slide switch closes when tipped over. (a) True (b) False
  40. 40.What does a reed switch do? (a) slides side to side (b) stays where you flip it (c) closes near a magnet (d) springs back when let go

Answer key

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

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