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.True or false: a toggle switch flips up or down. (a) True (b) False
- 2.What does a push button do? (a) flips up or down (b) works only while pressed (c) stays where you flip it (d) closes when tipped over
- 3.What does a reed switch do? (a) closes near a magnet (b) flips up or down (c) stays where you flip it (d) works only while pressed
- 4.What does a toggle switch do? (a) slides side to side (b) closes when tipped over (c) closes near a magnet (d) flips up or down
- 5.What does a tilt switch do? (a) stays where you flip it (b) closes when tipped over (c) flips up or down (d) springs back when let go
- 6.🔘 A bulb and a cell are joined through 2 switches on 2 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?
- 7.🔘 Which kind of switch stays where you flip it? (a) a toggle switch (b) a tilt switch (c) a slide switch (d) a push button
- 8.What does a toggle switch do? (a) slides side to side (b) works only while pressed (c) stays where you flip it (d) closes when tipped over
- 9.🔘 Two switches are in series. When does the bulb glow? (a) never (b) when both are ON (c) when either is ON (d) when both are OFF
- 10.🔘 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?
- 11.🔘 Which kind of switch slides side to side? (a) a slide switch (b) a reed switch (c) a push button (d) a tilt switch
- 12.🔘 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 ON, C is OFF and D is OFF. Does the bulb glow? (a) No (b) Yes
- 13.🔘 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
- 14.True or false: a push button springs back when let go. (a) True (b) False
- 15.🔘 What does a switch do in a circuit? (a) makes electricity (b) changes the voltage (c) opens or closes the loop (d) stores current
- 16.🔘 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
- 17.🔘 Which kind of switch springs back when let go? (a) a reed switch (b) a tilt switch (c) a toggle switch (d) a push button
- 18.🔘 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
- 19.🔘 When a switch is ON, the circuit is … (a) open (b) broken (c) closed (d) cut
- 20.🔘 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
- 21.True or false: a reed switch closes near a magnet. (a) False (b) True
- 22.🔘 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
- 23.What does a push button do? (a) closes when tipped over (b) springs back when let go (c) flips up or down (d) closes near a magnet
- 24.True or false: a push button closes near a magnet. (a) True (b) False
- 25.True or false: a slide switch slides side to side. (a) False (b) True
- 26.🔘 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
- 27.What does a slide switch do? (a) slides side to side (b) springs back when let go (c) works only while pressed (d) closes near a magnet
- 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 ON and B is ON. Does the bulb glow? (a) No (b) Yes
- 29.🔘 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) Yes (b) No
- 30.🔘 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
- 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 OFF and B is ON. Does the bulb glow? (a) Yes (b) No
- 32.🔘 Which kind of switch closes near a magnet? (a) a reed switch (b) a tilt switch (c) a slide switch (d) a toggle switch
- 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 OFF. Does the bulb glow? (a) Yes (b) No
- 34.True or false: a toggle switch closes when tipped over. (a) True (b) False
- 35.True or false: a tilt switch closes when tipped over. (a) True (b) False
- 36.🔘 Which kind of switch flips up or down? (a) a toggle switch (b) a push button (c) a slide switch (d) a tilt switch
- 37.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
- 38.True or false: a tilt switch springs back when let go. (a) False (b) True
- 39.🔘 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?
- 40.🔘 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
Answer key
- True
- works only while pressed
- closes near a magnet
- flips up or down
- closes when tipped over
- 1
- a toggle switch
- stays where you flip it
- when both are ON
- 2
- a slide switch
- No
- Yes
- True
- opens or closes the loop
- Yes
- a push button
- No
- closed
- Yes
- True
- Yes
- springs back when let go
- False
- True
- No
- slides side to side
- Yes
- No
- No
- Yes
- a reed switch
- No
- False
- True
- a toggle switch
- No
- False
- 1
- Yes
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