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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 309 · 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 OFF, B is ON and C is ON. Does the bulb glow? (a) Yes (b) No
  2. 2.🔘 A bulb and a cell are joined through 2 switches on 2 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?
  3. 3.🔘 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) Yes (b) No
  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 OFF and C is ON. Does the bulb glow? (a) Yes (b) No
  5. 5.🔘 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
  6. 6.🔘 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
  7. 7.True or false: a push button closes near a magnet. (a) False (b) True
  8. 8.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) only when both are OFF (c) never (d) when either is ON
  9. 9.🔘 Which kind of switch stays where you flip it? (a) a tilt switch (b) a toggle switch (c) a slide switch (d) a push button
  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 ON. Does the bulb glow? (a) No (b) Yes
  11. 11.What does a tilt switch do? (a) flips up or down (b) closes when tipped over (c) closes near a magnet (d) stays where you flip it
  12. 12.What does a toggle switch do? (a) closes when tipped over (b) slides side to side (c) closes near a magnet (d) flips up or down
  13. 13.🔘 Which kind of switch flips up or down? (a) a reed switch (b) a slide switch (c) a toggle switch (d) a tilt switch
  14. 14.True or false: a reed switch closes near a magnet. (a) True (b) False
  15. 15.🔘 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?
  16. 16.🔘 What does a switch do in a circuit? (a) makes electricity (b) opens or closes the loop (c) stores current (d) changes the voltage
  17. 17.True or false: a tilt switch stays where you flip it. (a) True (b) False
  18. 18.🔘 When a switch is ON, the circuit is … (a) cut (b) closed (c) open (d) broken
  19. 19.🔘 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?
  20. 20.True or false: a tilt switch closes when tipped over. (a) False (b) True
  21. 21.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) when either is ON (c) when both are ON (d) never
  22. 22.🔘 Which kind of switch springs back when let go? (a) a tilt switch (b) a reed switch (c) a push button (d) a toggle switch
  23. 23.🔘 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?
  24. 24.What does a push button do? (a) stays where you flip it (b) springs back when let go (c) closes near a magnet (d) slides side to side
  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 ON, B is ON, C is ON and D is OFF. Does the bulb glow? (a) No (b) Yes
  26. 26.True or false: a push button flips up or down. (a) True (b) False
  27. 27.True or false: a toggle switch flips up or down. (a) False (b) True
  28. 28.🔘 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?
  29. 29.True or false: a toggle switch stays where you flip it. (a) True (b) False
  30. 30.What does a toggle switch do? (a) stays where you flip it (b) closes when tipped over (c) works only while pressed (d) springs back when let go
  31. 31.🔘 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) Yes (b) No
  32. 32.What does a reed switch do? (a) slides side to side (b) stays where you flip it (c) works only while pressed (d) closes near a magnet
  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 OFF and B is OFF. Does the bulb glow? (a) No (b) Yes
  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 OFF, B is OFF, C is ON and D is ON. Does the bulb glow? (a) No (b) Yes
  35. 35.🔘 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
  36. 36.🔘 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
  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 ON and C is ON. Does the bulb glow? (a) Yes (b) No
  38. 38.🔘 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) Yes (b) No
  39. 39.🔘 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
  40. 40.True or false: a push button springs back when let go. (a) False (b) True

Answer key

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

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