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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 924 · 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 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
  2. 2.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are OFF (b) never (c) only when both are ON (d) when either is ON
  3. 3.🔘 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) Yes (b) No
  4. 4.What does a tilt switch do? (a) springs back when let go (b) closes when tipped over (c) works only while pressed (d) stays where you flip it
  5. 5.🔘 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) Yes (b) No
  6. 6.🔘 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?
  7. 7.🔘 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
  8. 8.True or false: a push button works only while pressed. (a) False (b) True
  9. 9.🔘 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
  10. 10.What does a toggle switch do? (a) works only while pressed (b) springs back when let go (c) closes near a magnet (d) stays where you flip it
  11. 11.🔘 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) Yes (b) No
  12. 12.What does a slide switch do? (a) slides side to side (b) flips up or down (c) stays where you flip it (d) springs back when let go
  13. 13.🔘 A bulb and a cell are joined through 5 switches on 5 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?
  14. 14.🔘 Which kind of switch slides side to side? (a) a reed switch (b) a toggle switch (c) a slide switch (d) a tilt switch
  15. 15.True or false: a reed switch stays where you flip it. (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 OFF, B is ON and C is ON. Does the bulb glow? (a) Yes (b) No
  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) No (b) Yes
  18. 18.🔘 When a switch is ON, the circuit is … (a) open (b) cut (c) closed (d) broken
  19. 19.True or false: a push button closes near a magnet. (a) True (b) False
  20. 20.True or false: a slide switch stays where you flip it. (a) False (b) True
  21. 21.🔘 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
  22. 22.What does a reed switch do? (a) closes near a magnet (b) slides side to side (c) works only while pressed (d) springs back when let go
  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 ON. Does the bulb glow? (a) No (b) Yes
  24. 24.🔘 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?
  25. 25.🔘 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?
  26. 26.True or false: a slide switch works only while pressed. (a) True (b) False
  27. 27.🔘 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
  28. 28.🔘 Which kind of switch works only while pressed? (a) a reed switch (b) a push button (c) a slide switch (d) a toggle switch
  29. 29.True or false: a reed switch works only while pressed. (a) True (b) False
  30. 30.🔘 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
  31. 31.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) when either is ON (c) never (d) when both are ON
  32. 32.What does a push button do? (a) closes when tipped over (b) stays where you flip it (c) closes near a magnet (d) springs back when let go
  33. 33.True or false: a push button springs back when let go. (a) False (b) True
  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.🔘 Which kind of switch closes when tipped over? (a) a reed switch (b) a push button (c) a tilt switch (d) a slide switch
  36. 36.True or false: a push button closes when tipped over. (a) False (b) True
  37. 37.🔘 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) No (b) Yes
  38. 38.🔘 What does a switch do in a circuit? (a) makes electricity (b) changes the voltage (c) stores current (d) opens or closes the loop
  39. 39.What does a toggle switch do? (a) closes when tipped over (b) flips up or down (c) springs back when let go (d) slides side to side
  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 ON, B is ON and C is ON. Does the bulb glow? (a) Yes (b) No

Answer key

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

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