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