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