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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 248 · 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 series. When does the bulb glow? (a) never (b) when both are OFF (c) when both are ON (d) when either is ON
  2. 2.True or false: a slide switch stays where you flip it. (a) False (b) True
  3. 3.🔘 Which kind of switch works only while pressed? (a) a slide switch (b) a toggle switch (c) a tilt switch (d) a push button
  4. 4.🔘 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?
  5. 5.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  6. 6.🔘 Which kind of switch slides side to side? (a) a push button (b) a reed switch (c) a slide switch (d) a tilt switch
  7. 7.🔘 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) No (b) Yes
  8. 8.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) never (c) when either is ON (d) only when both are OFF
  9. 9.🔘 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
  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 OFF. Does the bulb glow? (a) No (b) Yes
  11. 11.True or false: a toggle switch closes when tipped over. (a) True (b) False
  12. 12.🔘 When a switch is ON, the circuit is … (a) cut (b) closed (c) broken (d) open
  13. 13.🔘 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) No (b) Yes
  14. 14.🔘 Which kind of switch closes near a magnet? (a) a tilt switch (b) a toggle switch (c) a reed switch (d) a push button
  15. 15.🔘 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?
  16. 16.🔘 Which kind of switch closes when tipped over? (a) a reed switch (b) a slide switch (c) a toggle switch (d) a tilt switch
  17. 17.🔘 Which kind of switch stays where you flip it? (a) a slide switch (b) a toggle switch (c) a push button (d) a reed switch
  18. 18.True or false: a tilt switch works only while pressed. (a) True (b) False
  19. 19.🔘 Which kind of switch flips up or down? (a) a reed switch (b) a toggle switch (c) a tilt switch (d) a push button
  20. 20.What does a toggle switch do? (a) slides side to side (b) works only while pressed (c) closes when tipped over (d) stays where you flip it
  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 ON, B is OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  22. 22.🔘 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
  23. 23.🔘 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
  24. 24.🔘 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?
  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 OFF, C is ON and D is ON. Does the bulb glow? (a) Yes (b) No
  26. 26.What does a slide switch do? (a) springs back when let go (b) closes near a magnet (c) flips up or down (d) slides side to side
  27. 27.🔘 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 OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  28. 28.What does a push button do? (a) closes when tipped over (b) slides side to side (c) works only while pressed (d) closes near a magnet
  29. 29.True or false: a push button stays where you flip it. (a) False (b) True
  30. 30.🔘 What does a switch do in a circuit? (a) changes the voltage (b) opens or closes the loop (c) makes electricity (d) stores current
  31. 31.🔘 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
  32. 32.True or false: a reed switch flips up or down. (a) True (b) False
  33. 33.True or false: a toggle switch stays where you flip it. (a) True (b) False
  34. 34.True or false: a tilt switch closes near a magnet. (a) True (b) False
  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 ON, B is OFF, C is ON and D is OFF. Does the bulb glow? (a) Yes (b) No
  36. 36.What does a reed switch do? (a) works only while pressed (b) stays where you flip it (c) slides side to side (d) closes near a magnet
  37. 37.What does a toggle switch do? (a) closes when tipped over (b) springs back when let go (c) closes near a magnet (d) flips up or down
  38. 38.🔘 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 OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  39. 39.True or false: a toggle switch slides side to side. (a) True (b) False
  40. 40.True or false: a tilt switch stays where you flip it. (a) False (b) True

Answer key

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

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