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