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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 901 · 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 toggle switch stays where you flip it. (a) True (b) False
  2. 2.🔘 When a switch is ON, the circuit is … (a) open (b) closed (c) broken (d) cut
  3. 3.🔘 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
  4. 4.🔘 What does a switch do in a circuit? (a) opens or closes the loop (b) stores current (c) makes electricity (d) changes the voltage
  5. 5.What does a toggle switch do? (a) works only while pressed (b) stays where you flip it (c) springs back when let go (d) closes when tipped over
  6. 6.True or false: a reed switch closes near a magnet. (a) True (b) False
  7. 7.🔘 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 ON and C is OFF. Does the bulb glow? (a) No (b) Yes
  8. 8.🔘 Which kind of switch works only while pressed? (a) a toggle switch (b) a tilt switch (c) a slide switch (d) a push button
  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 OFF, B is OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  10. 10.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a reed switch (c) a push button (d) a slide switch
  11. 11.🔘 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 ON, C is OFF and D is ON. Does the bulb glow? (a) No (b) Yes
  12. 12.What does a push button do? (a) springs back when let go (b) flips up or down (c) closes near a magnet (d) slides side to side
  13. 13.True or false: a reed switch slides side to side. (a) False (b) True
  14. 14.🔘 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
  15. 15.True or false: a slide switch slides side to side. (a) True (b) False
  16. 16.🔘 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?
  17. 17.What does a toggle switch do? (a) works only while pressed (b) closes near a magnet (c) closes when tipped over (d) flips up or down
  18. 18.True or false: a push button works only while pressed. (a) True (b) False
  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 OFF and D is OFF. Does the bulb glow? (a) Yes (b) No
  20. 20.🔘 Which kind of switch springs back when let go? (a) a tilt switch (b) a slide switch (c) a toggle switch (d) a push button
  21. 21.🔘 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
  22. 22.What does a reed switch do? (a) flips up or down (b) springs back when let go (c) stays where you flip it (d) closes near a magnet
  23. 23.What does a push button do? (a) closes near a magnet (b) flips up or down (c) slides side to side (d) works only while pressed
  24. 24.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
  25. 25.🔘 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
  26. 26.True or false: a slide switch closes near a magnet. (a) True (b) False
  27. 27.🔘 Which kind of switch flips up or down? (a) a toggle switch (b) a reed switch (c) a tilt switch (d) a push button
  28. 28.What does a slide switch do? (a) springs back when let go (b) stays where you flip it (c) closes near a magnet (d) slides side to side
  29. 29.True or false: a reed switch springs back when let go. (a) True (b) False
  30. 30.🔘 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
  31. 31.🔘 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 OFF, C is OFF and D is ON. Does the bulb glow? (a) Yes (b) No
  32. 32.🔘 Which kind of switch stays where you flip it? (a) a slide switch (b) a toggle switch (c) a reed switch (d) a tilt switch
  33. 33.🔘 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
  34. 34.🔘 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?
  35. 35.True or false: a toggle switch works only while pressed. (a) True (b) False
  36. 36.🔘 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) Yes (b) No
  37. 37.🔘 A bulb and a cell are joined through 4 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
  38. 38.🔘 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
  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 ON and C is ON. Does the bulb glow? (a) No (b) Yes
  40. 40.🔘 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 ON. Does the bulb glow? (a) No (b) Yes

Answer key

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

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