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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 774 · 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) broken (b) cut (c) closed (d) open
  2. 2.🔘 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?
  3. 3.🔘 Which kind of switch closes when tipped over? (a) a slide switch (b) a toggle switch (c) a push button (d) a tilt switch
  4. 4.True or false: a reed switch springs back when let go. (a) True (b) False
  5. 5.🔘 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
  6. 6.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) never (b) only when both are ON (c) only when both are OFF (d) when either is ON
  7. 7.What does a reed switch do? (a) closes when tipped over (b) closes near a magnet (c) stays where you flip it (d) slides side to side
  8. 8.True or false: a slide switch works only while pressed. (a) True (b) False
  9. 9.🔘 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) Yes (b) No
  10. 10.🔘 A bulb and a cell are joined through 5 switches on 5 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.🔘 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
  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 slide switch do? (a) closes when tipped over (b) stays where you flip it (c) flips up or down (d) slides side to side
  14. 14.True or false: a push button stays where you flip it. (a) True (b) False
  15. 15.True or false: a push button works only while pressed. (a) False (b) True
  16. 16.True or false: a push button springs back when let go. (a) True (b) False
  17. 17.🔘 What does a switch do in a circuit? (a) makes electricity (b) opens or closes the loop (c) changes the voltage (d) stores current
  18. 18.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a tilt switch (c) a reed switch (d) a push button
  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 ON, B is ON and C is ON. Does the bulb glow? (a) No (b) Yes
  20. 20.🔘 Which kind of switch stays where you flip it? (a) a tilt switch (b) a slide switch (c) a reed switch (d) a toggle switch
  21. 21.True or false: a slide switch slides side to side. (a) True (b) False
  22. 22.🔘 Which kind of switch flips up or down? (a) a tilt switch (b) a push button (c) a toggle switch (d) a slide switch
  23. 23.🔘 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) No (b) Yes
  24. 24.🔘 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) Yes (b) No
  25. 25.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
  26. 26.🔘 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
  27. 27.🔘 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
  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 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?
  30. 30.🔘 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?
  31. 31.🔘 Which kind of switch springs back when let go? (a) a slide switch (b) a reed switch (c) a toggle switch (d) a push button
  32. 32.🔘 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
  33. 33.🔘 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) Yes (b) No
  34. 34.🔘 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) 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 OFF, B is OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  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 ON, B is OFF and C is ON. Does the bulb glow? (a) Yes (b) No
  37. 37.What does a push button do? (a) closes near a magnet (b) closes when tipped over (c) works only while pressed (d) stays where you flip it
  38. 38.🔘 Which kind of switch slides side to side? (a) a tilt switch (b) a reed switch (c) a slide switch (d) a push button
  39. 39.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  40. 40.True or false: a toggle switch slides side to side. (a) True (b) False

Answer key

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

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