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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 550 · 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.What does a push button do? (a) flips up or down (b) works only while pressed (c) closes near a magnet (d) closes when tipped over
  2. 2.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  3. 3.🔘 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?
  4. 4.True or false: a toggle switch flips up or down. (a) True (b) False
  5. 5.🔘 Which kind of switch springs back when let go? (a) a slide switch (b) a push button (c) a tilt switch (d) a reed switch
  6. 6.🔘 What does a switch do in a circuit? (a) changes the voltage (b) opens or closes the loop (c) stores current (d) makes electricity
  7. 7.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  8. 8.🔘 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?
  9. 9.🔘 Which kind of switch flips up or down? (a) a push button (b) a toggle switch (c) a slide switch (d) a reed switch
  10. 10.True or false: a tilt switch closes when tipped over. (a) True (b) False
  11. 11.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) when either is ON (b) only when both are ON (c) never (d) only when both are OFF
  12. 12.What does a tilt switch do? (a) flips up or down (b) springs back when let go (c) closes when tipped over (d) works only while pressed
  13. 13.True or false: a toggle switch springs back when let go. (a) False (b) True
  14. 14.🔘 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
  15. 15.What does a reed switch do? (a) springs back when let go (b) closes when tipped over (c) works only while pressed (d) closes near a magnet
  16. 16.True or false: a tilt switch slides side to side. (a) True (b) False
  17. 17.🔘 When a switch is ON, the circuit is … (a) cut (b) closed (c) open (d) broken
  18. 18.True or false: a push button closes near a magnet. (a) False (b) True
  19. 19.🔘 A bulb and a cell are joined through 4 switches on 4 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?
  20. 20.True or false: a toggle switch stays where you flip it. (a) False (b) True
  21. 21.🔘 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
  22. 22.🔘 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
  23. 23.🔘 Two switches are in series. When does the bulb glow? (a) when either is ON (b) when both are OFF (c) when both are ON (d) never
  24. 24.What does a push button do? (a) stays where you flip it (b) springs back when let go (c) slides side to side (d) closes when tipped over
  25. 25.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  26. 26.🔘 Which kind of switch slides side to side? (a) a push button (b) a reed switch (c) a tilt switch (d) a slide switch
  27. 27.What does a toggle switch do? (a) closes when tipped over (b) stays where you flip it (c) springs back when let go (d) closes near a magnet
  28. 28.True or false: a slide switch closes when tipped over. (a) False (b) True
  29. 29.🔘 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
  30. 30.🔘 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
  31. 31.🔘 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
  32. 32.What does a slide switch do? (a) springs back when let go (b) works only while pressed (c) slides side to side (d) flips up or down
  33. 33.🔘 Which kind of switch stays where you flip it? (a) a tilt switch (b) a slide switch (c) a push button (d) a toggle switch
  34. 34.🔘 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?
  35. 35.🔘 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) No (b) Yes
  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 ON, B is OFF and C is ON. Does the bulb glow? (a) No (b) Yes
  37. 37.🔘 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
  38. 38.🔘 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?
  39. 39.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
  40. 40.🔘 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

Answer key

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

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