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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 447 · 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 OFF, B is ON, C is ON and D is ON. Does the bulb glow? (a) No (b) Yes
  2. 2.🔘 What does a switch do in a circuit? (a) makes electricity (b) stores current (c) opens or closes the loop (d) changes the voltage
  3. 3.True or false: a tilt switch stays where you flip it. (a) True (b) False
  4. 4.What does a reed switch do? (a) closes near a magnet (b) springs back when let go (c) slides side to side (d) closes when tipped over
  5. 5.What does a tilt switch do? (a) closes when tipped over (b) works only while pressed (c) closes near a magnet (d) slides side to side
  6. 6.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) never (b) when either is ON (c) only when both are OFF (d) only when both are ON
  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.🔘 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
  9. 9.True or false: a push button closes when tipped over. (a) True (b) False
  10. 10.🔘 Two switches are in series. When does the bulb glow? (a) when both are OFF (b) when either is ON (c) when both are ON (d) never
  11. 11.🔘 Which kind of switch works only while pressed? (a) a tilt switch (b) a slide switch (c) a push button (d) a reed switch
  12. 12.True or false: a push button closes near a magnet. (a) False (b) True
  13. 13.🔘 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?
  14. 14.🔘 Which kind of switch closes when tipped over? (a) a reed switch (b) a toggle switch (c) a push button (d) a tilt switch
  15. 15.What does a toggle switch do? (a) works only while pressed (b) slides side to side (c) closes near a magnet (d) stays where you flip it
  16. 16.True or false: a toggle switch flips up or down. (a) False (b) True
  17. 17.What does a slide switch do? (a) works only while pressed (b) flips up or down (c) slides side to side (d) closes when tipped over
  18. 18.What does a push button do? (a) stays where you flip it (b) slides side to side (c) works only while pressed (d) closes near a magnet
  19. 19.🔘 Which kind of switch closes near a magnet? (a) a reed switch (b) a push button (c) a tilt switch (d) a toggle switch
  20. 20.🔘 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
  21. 21.True or false: a reed switch closes when tipped over. (a) True (b) False
  22. 22.🔘 When a switch is ON, the circuit is … (a) broken (b) closed (c) open (d) cut
  23. 23.🔘 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) No (b) Yes
  24. 24.🔘 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
  25. 25.🔘 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
  26. 26.True or false: a reed switch closes near a magnet. (a) True (b) False
  27. 27.What does a toggle switch do? (a) springs back when let go (b) works only while pressed (c) slides side to side (d) flips up or down
  28. 28.True or false: a push button works only while pressed. (a) True (b) False
  29. 29.🔘 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) Yes (b) No
  30. 30.🔘 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?
  31. 31.True or false: a tilt switch springs back when let go. (a) False (b) True
  32. 32.🔘 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
  33. 33.🔘 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 ON and D is ON. Does the bulb glow? (a) Yes (b) No
  34. 34.🔘 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) No (b) Yes
  35. 35.🔘 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 ON and D is OFF. Does the bulb glow? (a) Yes (b) No
  36. 36.🔘 Which kind of switch stays where you flip it? (a) a reed switch (b) a push button (c) a toggle switch (d) a tilt switch
  37. 37.🔘 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
  38. 38.🔘 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
  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.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes

Answer key

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

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