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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 275 · 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.True or false: a slide switch closes near a magnet. (a) False (b) True
  2. 2.🔘 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) No (b) Yes
  3. 3.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  4. 4.🔘 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?
  5. 5.🔘 Which kind of switch closes when tipped over? (a) a toggle switch (b) a push button (c) a tilt switch (d) a reed switch
  6. 6.What does a slide switch do? (a) slides side to side (b) closes when tipped over (c) springs back when let go (d) closes near a magnet
  7. 7.🔘 What does a switch do in a circuit? (a) makes electricity (b) stores current (c) opens or closes the loop (d) changes the voltage
  8. 8.🔘 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
  9. 9.True or false: a push button springs back when let go. (a) False (b) True
  10. 10.True or false: a toggle switch stays where you flip it. (a) True (b) False
  11. 11.🔘 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?
  12. 12.🔘 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
  13. 13.🔘 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
  14. 14.🔘 Which kind of switch works only while pressed? (a) a slide switch (b) a reed switch (c) a push button (d) a tilt switch
  15. 15.What does a push button do? (a) closes near a magnet (b) springs back when let go (c) slides side to side (d) stays where you flip it
  16. 16.True or false: a reed switch slides side to side. (a) False (b) True
  17. 17.🔘 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
  18. 18.🔘 Which kind of switch springs back when let go? (a) a tilt switch (b) a reed switch (c) a toggle switch (d) a push button
  19. 19.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  20. 20.🔘 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 ON and D is OFF. Does the bulb glow? (a) No (b) Yes
  21. 21.True or false: a slide switch slides side to side. (a) True (b) False
  22. 22.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) only when both are OFF (c) never (d) when either is ON
  23. 23.What does a tilt switch do? (a) closes when tipped over (b) slides side to side (c) closes near a magnet (d) flips up or down
  24. 24.🔘 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
  25. 25.🔘 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?
  26. 26.What does a reed switch do? (a) springs back when let go (b) slides side to side (c) closes near a magnet (d) stays where you flip it
  27. 27.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a slide switch (c) a tilt switch (d) a reed switch
  28. 28.True or false: a toggle switch springs back when let go. (a) True (b) False
  29. 29.🔘 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
  30. 30.🔘 When a switch is ON, the circuit is … (a) open (b) cut (c) closed (d) broken
  31. 31.🔘 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
  32. 32.🔘 Which kind of switch stays where you flip it? (a) a reed switch (b) a tilt switch (c) a toggle switch (d) a push button
  33. 33.🔘 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?
  34. 34.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  35. 35.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  36. 36.🔘 Which kind of switch flips up or down? (a) a toggle switch (b) a push button (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 ON and C is ON. Does the bulb glow? (a) Yes (b) No
  38. 38.True or false: a reed switch springs back when let go. (a) True (b) False
  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 ON, B is OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  40. 40.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes

Answer key

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

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