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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 507 · 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) open (b) closed (c) broken (d) cut
  2. 2.What does a push button do? (a) slides side to side (b) closes near a magnet (c) closes when tipped over (d) works only while pressed
  3. 3.What does a toggle switch do? (a) springs back when let go (b) works only while pressed (c) closes near a magnet (d) stays where you flip it
  4. 4.🔘 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?
  5. 5.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  6. 6.🔘 Which kind of switch springs back when let go? (a) a slide switch (b) a reed switch (c) a tilt switch (d) a push button
  7. 7.🔘 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?
  8. 8.True or false: a push button flips up or down. (a) True (b) False
  9. 9.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  10. 10.True or false: a reed switch stays where you flip it. (a) True (b) False
  11. 11.🔘 Which kind of switch closes when tipped over? (a) a tilt switch (b) a reed switch (c) a slide switch (d) a toggle switch
  12. 12.🔘 What does a switch do in a circuit? (a) makes electricity (b) opens or closes the loop (c) stores current (d) changes the voltage
  13. 13.True or false: a tilt switch stays where you flip it. (a) False (b) True
  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 ON. Does the bulb glow? (a) No (b) Yes
  15. 15.🔘 A bulb and a cell are joined through 3 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
  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 ON, B is OFF, C is OFF and D is ON. Does the bulb glow? (a) No (b) Yes
  17. 17.🔘 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
  18. 18.What does a reed switch do? (a) springs back when let go (b) stays where you flip it (c) works only while pressed (d) closes near a magnet
  19. 19.True or false: a tilt switch flips up or down. (a) True (b) False
  20. 20.🔘 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?
  21. 21.🔘 Which kind of switch flips up or down? (a) a tilt switch (b) a push button (c) a reed switch (d) a toggle switch
  22. 22.🔘 Which kind of switch works only while pressed? (a) a tilt switch (b) a slide switch (c) a push button (d) a toggle switch
  23. 23.🔘 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
  24. 24.🔘 Which kind of switch slides side to side? (a) a slide switch (b) a tilt switch (c) a toggle switch (d) a push button
  25. 25.True or false: a reed switch closes near a magnet. (a) False (b) True
  26. 26.🔘 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) No (b) Yes
  27. 27.🔘 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
  28. 28.🔘 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
  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 ON. Does the bulb glow? (a) No (b) Yes
  30. 30.True or false: a slide switch closes when tipped over. (a) True (b) False
  31. 31.🔘 Which kind of switch closes near a magnet? (a) a slide switch (b) a reed switch (c) a toggle switch (d) a tilt switch
  32. 32.What does a slide switch do? (a) slides side to side (b) closes when tipped over (c) closes near a magnet (d) springs back when let go
  33. 33.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) never (b) only when both are OFF (c) when either is ON (d) only when both are ON
  34. 34.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  35. 35.🔘 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
  36. 36.What does a tilt switch do? (a) stays where you flip it (b) springs back when let go (c) slides side to side (d) closes when tipped over
  37. 37.🔘 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
  38. 38.🔘 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
  39. 39.🔘 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
  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 OFF and C is OFF. Does the bulb glow? (a) Yes (b) No

Answer key

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

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