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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 990 · 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) broken (b) cut (c) open (d) closed
  2. 2.🔘 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
  3. 3.🔘 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?
  4. 4.🔘 Which kind of switch flips up or down? (a) a push button (b) a slide switch (c) a reed switch (d) a toggle switch
  5. 5.What does a reed switch do? (a) stays where you flip it (b) flips up or down (c) closes near a magnet (d) slides side to side
  6. 6.🔘 Which kind of switch slides side to side? (a) a push button (b) a slide switch (c) a reed switch (d) a toggle switch
  7. 7.🔘 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
  8. 8.🔘 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
  9. 9.What does a tilt switch do? (a) slides side to side (b) springs back when let go (c) closes when tipped over (d) stays where you flip it
  10. 10.True or false: a slide switch closes near a magnet. (a) False (b) True
  11. 11.🔘 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
  12. 12.What does a push button do? (a) stays where you flip it (b) closes near a magnet (c) springs back when let go (d) slides side to side
  13. 13.True or false: a reed switch closes near a magnet. (a) True (b) False
  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 OFF. Does the bulb glow? (a) Yes (b) No
  15. 15.🔘 Which kind of switch stays where you flip it? (a) a reed switch (b) a toggle switch (c) a slide switch (d) a push button
  16. 16.🔘 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) Yes (b) No
  17. 17.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a reed switch (c) a slide switch (d) a push button
  18. 18.🔘 What does a switch do in a circuit? (a) makes electricity (b) opens or closes the loop (c) changes the voltage (d) stores current
  19. 19.True or false: a reed switch flips up or down. (a) False (b) True
  20. 20.🔘 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 OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
  21. 21.🔘 Which kind of switch springs back when let go? (a) a tilt switch (b) a slide switch (c) a reed switch (d) a push button
  22. 22.🔘 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
  23. 23.True or false: a tilt switch springs back when let go. (a) True (b) False
  24. 24.🔘 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
  25. 25.What does a slide switch do? (a) stays where you flip it (b) closes when tipped over (c) closes near a magnet (d) slides side to side
  26. 26.True or false: a slide switch slides side to side. (a) False (b) True
  27. 27.🔘 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?
  28. 28.🔘 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?
  29. 29.True or false: a push button springs back when let go. (a) True (b) False
  30. 30.What does a toggle switch do? (a) works only while pressed (b) closes near a magnet (c) flips up or down (d) slides side to side
  31. 31.True or false: a toggle switch stays where you flip it. (a) True (b) False
  32. 32.True or false: a push button works only while pressed. (a) False (b) True
  33. 33.🔘 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?
  34. 34.True or false: a push button slides side to side. (a) False (b) True
  35. 35.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) when both are ON (c) when either is ON (d) never
  36. 36.🔘 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
  37. 37.What does a push button do? (a) stays where you flip it (b) flips up or down (c) works only while pressed (d) slides side to side
  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 OFF. Does the bulb glow? (a) Yes (b) No
  39. 39.🔘 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
  40. 40.🔘 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 OFF and C is ON. Does the bulb glow? (a) No (b) Yes

Answer key

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

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