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.🔘 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
- 2.What does a tilt switch do? (a) stays where you flip it (b) springs back when let go (c) closes when tipped over (d) closes near a magnet
- 3.🔘 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
- 4.🔘 Which kind of switch closes when tipped over? (a) a reed switch (b) a push button (c) a toggle switch (d) a tilt switch
- 5.🔘 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) Yes (b) No
- 6.🔘 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
- 7.🔘 Two switches are in series. When does the bulb glow? (a) when both are ON (b) never (c) when either is ON (d) when both are OFF
- 8.🔘 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
- 9.True or false: a toggle switch flips up or down. (a) True (b) False
- 10.🔘 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
- 11.🔘 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) only when both are OFF (d) never
- 12.True or false: a push button stays where you flip it. (a) True (b) False
- 13.True or false: a slide switch flips up or down. (a) True (b) False
- 14.True or false: a toggle switch slides side to side. (a) False (b) True
- 15.🔘 What does a switch do in a circuit? (a) stores current (b) opens or closes the loop (c) changes the voltage (d) makes electricity
- 16.True or false: a push button flips up or down. (a) False (b) True
- 17.What does a slide switch do? (a) flips up or down (b) works only while pressed (c) stays where you flip it (d) slides side to side
- 18.True or false: a tilt switch slides side to side. (a) False (b) True
- 19.🔘 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
- 20.What does a toggle switch do? (a) works only while pressed (b) springs back when let go (c) flips up or down (d) slides side to side
- 21.🔘 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?
- 22.🔘 Which kind of switch stays where you flip it? (a) a slide switch (b) a push button (c) a toggle switch (d) a reed switch
- 23.True or false: a push button works only while pressed. (a) True (b) False
- 24.What does a reed switch do? (a) flips up or down (b) slides side to side (c) stays where you flip it (d) closes near a magnet
- 25.🔘 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?
- 26.What does a toggle switch do? (a) closes when tipped over (b) works only while pressed (c) springs back when let go (d) stays where you flip it
- 27.🔘 Which kind of switch flips up or down? (a) a tilt switch (b) a reed switch (c) a slide switch (d) a toggle switch
- 28.🔘 When a switch is ON, the circuit is … (a) closed (b) open (c) cut (d) broken
- 29.🔘 Which kind of switch closes near a magnet? (a) a reed switch (b) a push button (c) a tilt switch (d) a toggle switch
- 30.True or false: a slide switch works only while pressed. (a) False (b) True
- 31.What does a push button do? (a) closes when tipped over (b) stays where you flip it (c) flips up or down (d) springs back when let go
- 32.True or false: a reed switch closes when tipped over. (a) False (b) True
- 33.True or false: a tilt switch stays where you flip it. (a) False (b) True
- 34.🔘 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 ON, C is ON and D is OFF. Does the bulb glow? (a) Yes (b) No
- 35.🔘 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
- 36.🔘 Which kind of switch works only while pressed? (a) a tilt switch (b) a push button (c) a toggle switch (d) a reed switch
- 37.🔘 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?
- 38.🔘 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?
- 39.🔘 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
- 40.True or false: a toggle switch stays where you flip it. (a) True (b) False
Answer key
- No
- closes when tipped over
- Yes
- a tilt switch
- No
- Yes
- when both are ON
- No
- True
- No
- when either is ON
- False
- False
- False
- opens or closes the loop
- False
- slides side to side
- False
- No
- flips up or down
- 4
- a toggle switch
- True
- closes near a magnet
- 2
- stays where you flip it
- a toggle switch
- closed
- a reed switch
- False
- springs back when let go
- False
- False
- Yes
- No
- a push button
- 3
- 6
- No
- True
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