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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 111 · 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 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?
  2. 2.🔘 What does a switch do in a circuit? (a) makes electricity (b) opens or closes the loop (c) stores current (d) changes the voltage
  3. 3.🔘 When a switch is ON, the circuit is … (a) broken (b) open (c) cut (d) closed
  4. 4.What does a slide switch do? (a) closes near a magnet (b) slides side to side (c) springs back when let go (d) works only while pressed
  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 OFF, B is OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
  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 OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  7. 7.True or false: a slide switch works only while pressed. (a) True (b) False
  8. 8.🔘 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) No (b) Yes
  9. 9.What does a reed switch do? (a) slides side to side (b) closes near a magnet (c) flips up or down (d) stays where you flip it
  10. 10.🔘 Two switches are in series. When does the bulb glow? (a) when both are ON (b) when both are OFF (c) never (d) when either is ON
  11. 11.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  12. 12.What does a toggle switch do? (a) springs back when let go (b) slides side to side (c) works only while pressed (d) stays where you flip it
  13. 13.🔘 Which kind of switch stays where you flip it? (a) a slide switch (b) a toggle switch (c) a push button (d) a tilt switch
  14. 14.🔘 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) Yes (b) No
  15. 15.What does a tilt switch do? (a) stays where you flip it (b) flips up or down (c) works only while pressed (d) closes when tipped over
  16. 16.What does a toggle switch do? (a) flips up or down (b) springs back when let go (c) slides side to side (d) closes near a magnet
  17. 17.🔘 Which kind of switch slides side to side? (a) a tilt switch (b) a slide switch (c) a toggle switch (d) a push button
  18. 18.What does a push button do? (a) slides side to side (b) flips up or down (c) stays where you flip it (d) works only while pressed
  19. 19.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a slide switch (c) a reed switch (d) a tilt switch
  20. 20.🔘 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
  21. 21.🔘 A bulb and a cell are joined through 4 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.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) when either is ON (b) only when both are OFF (c) never (d) only when both are ON
  23. 23.🔘 Which kind of switch flips up or down? (a) a tilt switch (b) a reed switch (c) a toggle switch (d) a push button
  24. 24.🔘 Which kind of switch closes when tipped over? (a) a push button (b) a slide switch (c) a toggle switch (d) a tilt switch
  25. 25.True or false: a tilt switch slides side to side. (a) False (b) True
  26. 26.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  27. 27.🔘 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) Yes (b) No
  28. 28.True or false: a push button works only while pressed. (a) True (b) False
  29. 29.True or false: a tilt switch closes when tipped over. (a) False (b) True
  30. 30.What does a tilt switch do? (a) stays where you flip it (b) works only while pressed (c) closes when tipped over (d) flips up or down
  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) Yes (b) No
  32. 32.True or false: a push button closes near a magnet. (a) False (b) True
  33. 33.🔘 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) Yes (b) No
  34. 34.🔘 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
  35. 35.What does a push button do? (a) closes near a magnet (b) springs back when let go (c) slides side to side (d) closes when tipped over
  36. 36.🔘 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 ON, C is ON and D is ON. Does the bulb glow? (a) Yes (b) No
  37. 37.True or false: a toggle switch flips up or down. (a) False (b) True
  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 ON, B is ON and C is ON. Does the bulb glow? (a) No (b) Yes
  39. 39.🔘 Which kind of switch works only while pressed? (a) a reed switch (b) a toggle switch (c) a tilt switch (d) a push button
  40. 40.🔘 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?

Answer key

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

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