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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 445 · 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 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?
  2. 2.🔘 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?
  3. 3.🔘 What does a switch do in a circuit? (a) makes electricity (b) stores current (c) changes the voltage (d) opens or closes the loop
  4. 4.What does a push button do? (a) stays where you flip it (b) closes when tipped over (c) slides side to side (d) works only while pressed
  5. 5.🔘 Which kind of switch flips up or down? (a) a push button (b) a reed switch (c) a tilt switch (d) a toggle switch
  6. 6.🔘 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
  7. 7.🔘 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
  8. 8.🔘 When a switch is ON, the circuit is … (a) open (b) cut (c) broken (d) closed
  9. 9.🔘 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
  10. 10.🔘 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) No (b) Yes
  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) only when both are OFF (d) never
  12. 12.What does a tilt switch do? (a) slides side to side (b) stays where you flip it (c) closes when tipped over (d) works only while pressed
  13. 13.🔘 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) Yes (b) No
  14. 14.🔘 Which kind of switch works only while pressed? (a) a slide switch (b) a toggle switch (c) a reed switch (d) a push button
  15. 15.🔘 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) No (b) Yes
  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 OFF, B is OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
  17. 17.🔘 Which kind of switch stays where you flip it? (a) a push button (b) a reed switch (c) a toggle switch (d) a slide switch
  18. 18.🔘 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
  19. 19.True or false: a toggle switch stays where you flip it. (a) False (b) True
  20. 20.🔘 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) Yes (b) No
  21. 21.🔘 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
  22. 22.True or false: a push button springs back when let go. (a) False (b) True
  23. 23.🔘 Which kind of switch closes when tipped over? (a) a slide switch (b) a toggle switch (c) a reed switch (d) a tilt switch
  24. 24.🔘 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
  25. 25.What does a slide switch do? (a) stays where you flip it (b) works only while pressed (c) slides side to side (d) closes near a magnet
  26. 26.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a push button (c) a reed switch (d) a tilt switch
  27. 27.🔘 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) Yes (b) No
  28. 28.What does a push button do? (a) slides side to side (b) springs back when let go (c) closes when tipped over (d) stays where you flip it
  29. 29.What does a reed switch do? (a) works only while pressed (b) flips up or down (c) closes near a magnet (d) stays where you flip it
  30. 30.🔘 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 OFF and C is OFF. Does the bulb glow? (a) Yes (b) No
  31. 31.True or false: a toggle switch flips up or down. (a) False (b) True
  32. 32.True or false: a push button works only while pressed. (a) False (b) True
  33. 33.🔘 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
  34. 34.What does a toggle switch do? (a) springs back when let go (b) stays where you flip it (c) works only while pressed (d) closes near a magnet
  35. 35.🔘 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) No (b) Yes
  36. 36.🔘 Which kind of switch slides side to side? (a) a toggle switch (b) a reed switch (c) a slide switch (d) a tilt switch
  37. 37.🔘 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) No (b) Yes
  38. 38.True or false: a tilt switch stays where you flip it. (a) True (b) False
  39. 39.🔘 Two switches are in series. When does the bulb glow? (a) when either is ON (b) when both are ON (c) never (d) when both are OFF
  40. 40.🔘 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 ON. Does the bulb glow? (a) No (b) Yes

Answer key

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

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