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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 489 · 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.🔘 Which kind of switch stays where you flip it? (a) a reed switch (b) a slide switch (c) a push button (d) a toggle switch
  2. 2.🔘 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) only when both are OFF (d) never
  3. 3.True or false: a reed switch flips up or down. (a) False (b) True
  4. 4.What does a reed switch do? (a) springs back when let go (b) works only while pressed (c) closes near a magnet (d) stays where you flip it
  5. 5.🔘 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
  6. 6.True or false: a toggle switch works only while pressed. (a) True (b) False
  7. 7.🔘 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
  8. 8.🔘 When a switch is ON, the circuit is … (a) cut (b) open (c) broken (d) closed
  9. 9.🔘 Which kind of switch closes near a magnet? (a) a push button (b) a toggle switch (c) a reed switch (d) a tilt switch
  10. 10.🔘 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 ON, C is OFF and D is ON. Does the bulb glow? (a) Yes (b) No
  11. 11.True or false: a push button works only while pressed. (a) False (b) True
  12. 12.🔘 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 OFF and D is ON. Does the bulb glow? (a) Yes (b) No
  13. 13.True or false: a toggle switch stays where you flip it. (a) True (b) False
  14. 14.🔘 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 ON, C is OFF and D is OFF. Does the bulb glow? (a) No (b) Yes
  15. 15.True or false: a slide switch closes when tipped over. (a) True (b) False
  16. 16.🔘 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
  17. 17.🔘 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
  18. 18.🔘 What does a switch do in a circuit? (a) stores current (b) opens or closes the loop (c) makes electricity (d) changes the voltage
  19. 19.🔘 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?
  20. 20.🔘 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) No (b) Yes
  21. 21.What does a tilt switch do? (a) closes when tipped over (b) works only while pressed (c) slides side to side (d) stays where you flip it
  22. 22.🔘 Which kind of switch flips up or down? (a) a push button (b) a reed switch (c) a toggle switch (d) a tilt switch
  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 ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  24. 24.What does a toggle switch do? (a) slides side to side (b) springs back when let go (c) stays where you flip it (d) closes when tipped over
  25. 25.True or false: a push button closes near a magnet. (a) True (b) False
  26. 26.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  27. 27.True or false: a toggle switch closes when tipped over. (a) True (b) False
  28. 28.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) never (c) when both are ON (d) when either is ON
  29. 29.What does a push button do? (a) stays where you flip it (b) works only while pressed (c) slides side to side (d) closes when tipped over
  30. 30.True or false: a slide switch springs back when let go. (a) False (b) True
  31. 31.True or false: a reed switch closes near a magnet. (a) True (b) False
  32. 32.🔘 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?
  33. 33.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  34. 34.🔘 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) Yes (b) No
  35. 35.What does a slide switch do? (a) works only while pressed (b) closes when tipped over (c) closes near a magnet (d) slides side to side
  36. 36.🔘 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
  37. 37.True or false: a toggle switch slides side to side. (a) False (b) True
  38. 38.🔘 Which kind of switch springs back when let go? (a) a push button (b) a toggle switch (c) a tilt switch (d) a slide switch
  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 OFF and C is OFF. 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 OFF, B is ON and C is OFF. Does the bulb glow? (a) Yes (b) No

Answer key

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

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