Electronics Worksheet: Switches in a Circuit
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.🔘 When a switch is ON, the circuit is … (a) open (b) cut (c) closed (d) broken
- 2.True or false: a toggle switch springs back when let go. (a) False (b) True
- 3.🔘 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
- 4.True or false: a reed switch springs back when let go. (a) True (b) False
- 5.True or false: a push button closes when tipped over. (a) True (b) False
- 6.What does a slide switch do? (a) stays where you flip it (b) slides side to side (c) closes when tipped over (d) works only while pressed
- 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 ON. Does the bulb glow? (a) Yes (b) No
- 8.True or false: a push button springs back when let go. (a) True (b) False
- 9.What does a tilt switch do? (a) stays where you flip it (b) slides side to side (c) works only while pressed (d) closes when tipped over
- 10.🔘 A bulb and a cell are joined through 6 switches on 6 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?
- 11.What does a toggle switch do? (a) closes near a magnet (b) flips up or down (c) springs back when let go (d) works only while pressed
- 12.🔘 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
- 13.🔘 Which kind of switch stays where you flip it? (a) a toggle switch (b) a slide switch (c) a tilt switch (d) a reed switch
- 14.🔘 Which kind of switch flips up or down? (a) a reed switch (b) a push button (c) a slide switch (d) a toggle switch
- 15.🔘 What does a switch do in a circuit? (a) changes the voltage (b) makes electricity (c) stores current (d) opens or closes the loop
- 16.True or false: a toggle switch stays where you flip it. (a) True (b) False
- 17.True or false: a tilt switch flips up or down. (a) True (b) False
- 18.🔘 Which kind of switch closes when tipped over? (a) a tilt switch (b) a toggle switch (c) a push button (d) a slide switch
- 19.🔘 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) never (d) when either is ON
- 20.True or false: a push button stays where you flip it. (a) True (b) False
- 21.🔘 Which kind of switch works only while pressed? (a) a tilt switch (b) a reed switch (c) a toggle switch (d) a push button
- 22.🔘 Which kind of switch slides side to side? (a) a slide switch (b) a push button (c) a reed switch (d) a toggle switch
- 23.🔘 Two switches are in series. When does the bulb glow? (a) when either is ON (b) when both are ON (c) when both are OFF (d) never
- 24.True or false: a tilt switch stays where you flip it. (a) False (b) True
- 25.What does a push button do? (a) stays where you flip it (b) closes when tipped over (c) flips up or down (d) works only while pressed
- 26.🔘 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) Yes (b) No
- 27.🔘 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
- 28.🔘 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) No (b) Yes
- 29.🔘 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 ON. Does the bulb glow? (a) No (b) Yes
- 30.🔘 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
- 31.🔘 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 ON and B is OFF. Does the bulb glow? (a) Yes (b) No
- 32.🔘 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 ON. Does the bulb glow? (a) Yes (b) No
- 33.🔘 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
- 34.🔘 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?
- 35.🔘 A bulb and a cell are joined through 2 switches one after another in a single loop (series). What is the smallest number of switches that must be ON to light the bulb?
- 36.🔘 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
- 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 ON. Does the bulb glow? (a) No (b) Yes
- 38.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
- 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 OFF. Does the bulb glow? (a) Yes (b) No
- 40.🔘 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
Answer key
- closed
- False
- Yes
- False
- False
- slides side to side
- Yes
- True
- closes when tipped over
- 1
- flips up or down
- No
- a toggle switch
- a toggle switch
- opens or closes the loop
- True
- False
- a tilt switch
- when either is ON
- False
- a push button
- a slide switch
- when both are ON
- False
- works only while pressed
- No
- a push button
- No
- Yes
- No
- Yes
- No
- No
- 5
- 2
- Yes
- No
- stays where you flip it
- No
- Yes
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