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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 188 · 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.What does a push button do? (a) springs back when let go (b) slides side to side (c) flips up or down (d) closes near a magnet
  2. 2.True or false: a reed switch works only while pressed. (a) True (b) False
  3. 3.🔘 When a switch is ON, the circuit is … (a) open (b) cut (c) broken (d) closed
  4. 4.🔘 What does a switch do in a circuit? (a) makes electricity (b) stores current (c) opens or closes the loop (d) changes the voltage
  5. 5.🔘 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) No (b) Yes
  6. 6.What does a toggle switch do? (a) springs back when let go (b) works only while pressed (c) stays where you flip it (d) closes when tipped over
  7. 7.🔘 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 ON and C is ON. Does the bulb glow? (a) No (b) Yes
  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 ON, B is OFF and C is ON. Does the bulb glow? (a) Yes (b) No
  9. 9.🔘 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 ON, C is ON and D is OFF. Does the bulb glow? (a) Yes (b) No
  10. 10.What does a reed switch do? (a) springs back when let go (b) closes when tipped over (c) stays where you flip it (d) closes near a magnet
  11. 11.🔘 Which kind of switch closes when tipped over? (a) a reed switch (b) a tilt switch (c) a slide switch (d) a toggle switch
  12. 12.🔘 Which kind of switch flips up or down? (a) a slide switch (b) a reed switch (c) a toggle switch (d) a tilt switch
  13. 13.What does a slide switch do? (a) flips up or down (b) slides side to side (c) closes when tipped over (d) works only while pressed
  14. 14.What does a toggle switch do? (a) springs back when let go (b) closes when tipped over (c) slides side to side (d) flips up or down
  15. 15.🔘 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) No (b) Yes
  16. 16.🔘 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?
  17. 17.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are ON (b) when either is ON (c) never (d) only when both are OFF
  18. 18.What does a push button do? (a) slides side to side (b) works only while pressed (c) closes when tipped over (d) stays where you flip it
  19. 19.🔘 Which kind of switch springs back when let go? (a) a reed switch (b) a toggle switch (c) a slide switch (d) a push button
  20. 20.🔘 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
  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 ON, B is ON and C is OFF. Does the bulb glow? (a) Yes (b) No
  22. 22.🔘 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 OFF. Does the bulb glow? (a) Yes (b) No
  23. 23.True or false: a reed switch closes when tipped over. (a) True (b) False
  24. 24.True or false: a slide switch closes near a magnet. (a) False (b) True
  25. 25.True or false: a tilt switch closes when tipped over. (a) True (b) False
  26. 26.🔘 Which kind of switch works only while pressed? (a) a tilt switch (b) a toggle switch (c) a push button (d) a reed switch
  27. 27.🔘 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
  28. 28.True or false: a toggle switch flips up or down. (a) False (b) True
  29. 29.🔘 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
  30. 30.🔘 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
  31. 31.🔘 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?
  32. 32.🔘 Which kind of switch closes near a magnet? (a) a reed switch (b) a tilt switch (c) a slide switch (d) a toggle switch
  33. 33.What does a tilt switch do? (a) closes when tipped over (b) stays where you flip it (c) flips up or down (d) slides side to side
  34. 34.True or false: a reed switch flips up or down. (a) True (b) False
  35. 35.True or false: a reed switch closes near a magnet. (a) True (b) False
  36. 36.True or false: a tilt switch flips up or down. (a) True (b) False
  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 OFF, B is OFF and C is OFF. Does the bulb glow? (a) No (b) Yes
  38. 38.🔘 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?
  39. 39.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
  40. 40.🔘 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

Answer key

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

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