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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 639 · 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 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
  2. 2.What does a push button do? (a) closes near a magnet (b) works only while pressed (c) stays where you flip it (d) flips up or down
  3. 3.🔘 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) Yes (b) No
  4. 4.🔘 Which kind of switch stays where you flip it? (a) a slide switch (b) a toggle switch (c) a tilt switch (d) a push button
  5. 5.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) when either is ON (c) never (d) only when both are OFF
  6. 6.🔘 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
  7. 7.🔘 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
  8. 8.What does a reed switch do? (a) closes near a magnet (b) flips up or down (c) stays where you flip it (d) works only while pressed
  9. 9.🔘 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
  10. 10.🔘 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
  11. 11.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) when both are ON (c) never (d) when either is ON
  12. 12.What does a tilt switch do? (a) springs back when let go (b) closes near a magnet (c) closes when tipped over (d) works only while pressed
  13. 13.🔘 Which kind of switch springs back when let go? (a) a push button (b) a slide switch (c) a toggle switch (d) a reed switch
  14. 14.True or false: a toggle switch stays where you flip it. (a) False (b) True
  15. 15.What does a toggle switch do? (a) closes near a magnet (b) works only while pressed (c) stays where you flip it (d) slides side to side
  16. 16.True or false: a slide switch closes when tipped over. (a) True (b) False
  17. 17.🔘 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?
  18. 18.🔘 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 OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
  19. 19.🔘 Which kind of switch closes near a magnet? (a) a tilt switch (b) a push button (c) a reed switch (d) a toggle switch
  20. 20.True or false: a reed switch closes near a magnet. (a) True (b) False
  21. 21.🔘 What does a switch do in a circuit? (a) makes electricity (b) opens or closes the loop (c) changes the voltage (d) stores current
  22. 22.🔘 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) No (b) Yes
  23. 23.🔘 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
  24. 24.🔘 Which kind of switch closes when tipped over? (a) a push button (b) a slide switch (c) a reed switch (d) a tilt switch
  25. 25.What does a push button do? (a) flips up or down (b) stays where you flip it (c) closes when tipped over (d) springs back when let go
  26. 26.True or false: a toggle switch flips up or down. (a) True (b) False
  27. 27.What does a toggle switch do? (a) slides side to side (b) closes when tipped over (c) flips up or down (d) works only while pressed
  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 OFF, 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 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 ON. Does the bulb glow? (a) No (b) Yes
  30. 30.True or false: a tilt switch closes when tipped over. (a) False (b) True
  31. 31.🔘 When a switch is ON, the circuit is … (a) broken (b) cut (c) open (d) closed
  32. 32.🔘 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?
  33. 33.🔘 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) Yes (b) No
  34. 34.🔘 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
  35. 35.🔘 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 OFF and D is OFF. Does the bulb glow? (a) Yes (b) No
  36. 36.True or false: a slide switch slides side to side. (a) False (b) True
  37. 37.🔘 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) No (b) Yes
  38. 38.🔘 Which kind of switch flips up or down? (a) a push button (b) a toggle switch (c) a tilt switch (d) a reed switch
  39. 39.What does a slide switch do? (a) closes near a magnet (b) works only while pressed (c) slides side to side (d) springs back when let go
  40. 40.True or false: a reed switch closes when tipped over. (a) True (b) False

Answer key

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

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