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