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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 670 · 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.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) never (c) only when both are OFF (d) when either is ON
  2. 2.🔘 Which kind of switch slides side to side? (a) a tilt switch (b) a reed switch (c) a slide switch (d) a toggle switch
  3. 3.What does a reed switch do? (a) works only while pressed (b) slides side to side (c) stays where you flip it (d) closes near a magnet
  4. 4.🔘 What does a switch do in a circuit? (a) stores current (b) changes the voltage (c) makes electricity (d) opens or closes the loop
  5. 5.What does a toggle switch do? (a) closes near a magnet (b) closes when tipped over (c) stays where you flip it (d) springs back when let go
  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) Yes (b) No
  7. 7.🔘 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) Yes (b) No
  8. 8.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  9. 9.🔘 Two switches are in series. When does the bulb glow? (a) when both are ON (b) when both are OFF (c) when either is ON (d) never
  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 ON, B is OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  11. 11.True or false: a tilt switch springs back when let go. (a) True (b) False
  12. 12.🔘 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
  13. 13.🔘 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
  14. 14.🔘 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) No (b) Yes
  15. 15.🔘 Which kind of switch flips up or down? (a) a push button (b) a slide switch (c) a toggle switch (d) a reed switch
  16. 16.What does a tilt switch do? (a) closes when tipped over (b) flips up or down (c) closes near a magnet (d) stays where you flip it
  17. 17.🔘 Which kind of switch works only while pressed? (a) a slide switch (b) a tilt switch (c) a toggle switch (d) a push button
  18. 18.🔘 Which kind of switch closes when tipped over? (a) a tilt switch (b) a push button (c) a slide switch (d) a toggle switch
  19. 19.🔘 When a switch is ON, the circuit is … (a) broken (b) open (c) cut (d) closed
  20. 20.True or false: a tilt switch stays where you flip it. (a) True (b) False
  21. 21.🔘 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?
  22. 22.🔘 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
  23. 23.🔘 Which kind of switch springs back when let go? (a) a reed switch (b) a toggle switch (c) a push button (d) a tilt switch
  24. 24.True or false: a toggle switch flips up or down. (a) False (b) True
  25. 25.🔘 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?
  26. 26.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  27. 27.True or false: a tilt switch closes when tipped over. (a) False (b) True
  28. 28.True or false: a push button springs back when let go. (a) False (b) True
  29. 29.🔘 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 OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  30. 30.🔘 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 OFF and D is OFF. Does the bulb glow? (a) No (b) Yes
  31. 31.🔘 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
  32. 32.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  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 ON and B 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 OFF, B is OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  35. 35.🔘 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?
  36. 36.True or false: a toggle switch closes when tipped over. (a) True (b) False
  37. 37.🔘 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
  38. 38.🔘 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?
  39. 39.🔘 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
  40. 40.🔘 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

Answer key

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

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