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Electronics Worksheet: Switches in a Circuit

Electronics lesson 5: Switches in a circuit · Set 449 · 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 push button closes near a magnet. (a) True (b) False
  2. 2.🔘 What does a switch do in a circuit? (a) changes the voltage (b) makes electricity (c) stores current (d) opens or closes the loop
  3. 3.What does a toggle switch do? (a) stays where you flip it (b) closes when tipped over (c) closes near a magnet (d) slides side to side
  4. 4.True or false: a slide switch works only while pressed. (a) False (b) True
  5. 5.🔘 When a switch is ON, the circuit is … (a) open (b) closed (c) broken (d) cut
  6. 6.What does a push button do? (a) flips up or down (b) stays where you flip it (c) works only while pressed (d) slides side to side
  7. 7.🔘 Which kind of switch flips up or down? (a) a toggle switch (b) a reed switch (c) a tilt switch (d) a push button
  8. 8.🔘 Two switches are in series. When does the bulb glow? (a) when both are ON (b) when either is ON (c) never (d) when both are OFF
  9. 9.🔘 Which kind of switch stays where you flip it? (a) a push button (b) a reed switch (c) a toggle switch (d) a tilt switch
  10. 10.True or false: a tilt switch springs back when let go. (a) True (b) False
  11. 11.🔘 Which kind of switch closes when tipped over? (a) a toggle switch (b) a tilt switch (c) a slide switch (d) a reed switch
  12. 12.🔘 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
  13. 13.🔘 Two switches are in parallel (side by side). When does the bulb glow? (a) only when both are OFF (b) only when both are ON (c) when either is ON (d) never
  14. 14.🔘 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
  15. 15.True or false: a slide switch springs back when let go. (a) False (b) True
  16. 16.True or false: a toggle switch closes when tipped over. (a) False (b) True
  17. 17.🔘 Which kind of switch works only while pressed? (a) a push button (b) a slide switch (c) a tilt switch (d) a toggle switch
  18. 18.🔘 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
  19. 19.🔘 Which kind of switch springs back when let go? (a) a push button (b) a slide switch (c) a tilt switch (d) a toggle switch
  20. 20.True or false: a reed switch springs back when let go. (a) True (b) False
  21. 21.🔘 Which kind of switch slides side to side? (a) a tilt switch (b) a push button (c) a reed switch (d) a slide switch
  22. 22.🔘 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
  23. 23.What does a reed switch do? (a) stays where you flip it (b) closes near a magnet (c) springs back when let go (d) works only while pressed
  24. 24.What does a slide switch do? (a) closes when tipped over (b) springs back when let go (c) stays where you flip it (d) slides side to side
  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.🔘 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?
  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 ON and C is ON. Does the bulb glow? (a) No (b) Yes
  28. 28.🔘 A bulb and a cell are joined through 6 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
  29. 29.🔘 A bulb and a cell are joined through 5 switches on 5 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?
  30. 30.🔘 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
  31. 31.🔘 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
  32. 32.True or false: a reed switch works only while pressed. (a) True (b) False
  33. 33.True or false: a tilt switch closes when tipped over. (a) False (b) True
  34. 34.True or false: a push button stays where you flip it. (a) False (b) True
  35. 35.True or false: a push button springs back when let go. (a) False (b) True
  36. 36.🔘 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) No (b) Yes
  37. 37.True or false: a toggle switch slides side to side. (a) True (b) False
  38. 38.🔘 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) Yes (b) No
  39. 39.🔘 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
  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 ON, B is OFF and C is OFF. Does the bulb glow? (a) Yes (b) No

Answer key

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

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