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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 120 · 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 OFF, C is OFF and D is OFF. Does the bulb glow? (a) Yes (b) No
  2. 2.What does a reed switch do? (a) stays where you flip it (b) springs back when let go (c) closes near a magnet (d) closes when tipped over
  3. 3.🔘 What does a switch do in a circuit? (a) changes the voltage (b) opens or closes the loop (c) stores current (d) makes electricity
  4. 4.🔘 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
  5. 5.🔘 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
  6. 6.True or false: a toggle switch springs back when let go. (a) True (b) False
  7. 7.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are OFF (b) when either is ON (c) never (d) only when both are ON
  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 OFF and B is OFF. Does the bulb glow? (a) No (b) Yes
  9. 9.What does a push button do? (a) flips up or down (b) closes when tipped over (c) stays where you flip it (d) works only while pressed
  10. 10.🔘 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
  11. 11.🔘 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?
  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) flips up or down
  13. 13.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  14. 14.What does a toggle switch do? (a) closes when tipped over (b) stays where you flip it (c) springs back when let go (d) works only while pressed
  15. 15.🔘 Which kind of switch closes when tipped over? (a) a push button (b) a toggle switch (c) a slide switch (d) a tilt switch
  16. 16.🔘 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) Yes (b) No
  17. 17.🔘 Which kind of switch stays where you flip it? (a) a push button (b) a slide switch (c) a tilt switch (d) a toggle switch
  18. 18.🔘 When a switch is ON, the circuit is … (a) broken (b) open (c) closed (d) cut
  19. 19.🔘 Two switches are in series. When does the bulb glow? (a) when either is ON (b) when both are ON (c) never (d) when both are OFF
  20. 20.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  21. 21.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  22. 22.True or false: a tilt switch closes when tipped over. (a) True (b) False
  23. 23.True or false: a toggle switch flips up or down. (a) True (b) False
  24. 24.True or false: a push button works only while pressed. (a) False (b) True
  25. 25.True or false: a slide switch works only while pressed. (a) False (b) True
  26. 26.🔘 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?
  27. 27.🔘 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?
  28. 28.🔘 Which kind of switch flips up or down? (a) a push button (b) a tilt switch (c) a slide switch (d) a toggle switch
  29. 29.🔘 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
  30. 30.🔘 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) No (b) Yes
  31. 31.🔘 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?
  32. 32.True or false: a push button slides side to side. (a) False (b) True
  33. 33.True or false: a reed switch closes when tipped over. (a) False (b) True
  34. 34.🔘 Which kind of switch springs back when let go? (a) a reed switch (b) a toggle switch (c) a push button (d) a slide switch
  35. 35.True or false: a toggle switch closes near a magnet. (a) False (b) True
  36. 36.🔘 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?
  37. 37.True or false: a tilt switch stays where you flip it. (a) True (b) False
  38. 38.🔘 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
  39. 39.🔘 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) Yes (b) No
  40. 40.🔘 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

Answer key

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

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