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.🔘 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 ON, C is ON and D is ON. Does the bulb glow? (a) No (b) Yes
- 2.🔘 Which kind of switch springs back when let go? (a) a slide switch (b) a toggle switch (c) a push button (d) a reed switch
- 3.🔘 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?
- 4.🔘 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
- 5.What does a reed switch do? (a) springs back when let go (b) flips up or down (c) closes near a magnet (d) stays where you flip it
- 6.What does a push button do? (a) stays where you flip it (b) flips up or down (c) closes when tipped over (d) springs back when let go
- 7.What does a tilt switch do? (a) flips up or down (b) stays where you flip it (c) closes near a magnet (d) closes when tipped over
- 8.🔘 What does a switch do in a circuit? (a) makes electricity (b) changes the voltage (c) opens or closes the loop (d) stores current
- 9.🔘 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 ON and D is ON. Does the bulb glow? (a) Yes (b) No
- 10.🔘 When a switch is ON, the circuit is … (a) closed (b) broken (c) open (d) cut
- 11.🔘 Which kind of switch works only while pressed? (a) a tilt switch (b) a toggle switch (c) a push button (d) a slide switch
- 12.🔘 Which kind of switch closes near a magnet? (a) a toggle switch (b) a tilt switch (c) a push button (d) a reed switch
- 13.🔘 Which kind of switch slides side to side? (a) a tilt switch (b) a toggle switch (c) a push button (d) a slide switch
- 14.🔘 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) Yes (b) No
- 15.🔘 Which kind of switch flips up or down? (a) a push button (b) a slide switch (c) a toggle switch (d) a reed switch
- 16.🔘 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
- 17.What does a toggle switch do? (a) slides side to side (b) springs back when let go (c) stays where you flip it (d) closes near a magnet
- 18.🔘 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
- 19.True or false: a toggle switch flips up or down. (a) True (b) False
- 20.What does a toggle switch do? (a) slides side to side (b) closes when tipped over (c) flips up or down (d) works only while pressed
- 21.🔘 Which kind of switch closes when tipped over? (a) a slide switch (b) a tilt switch (c) a push button (d) a toggle switch
- 22.True or false: a toggle switch stays where you flip it. (a) False (b) True
- 23.🔘 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
- 24.True or false: a push button stays where you flip it. (a) False (b) True
- 25.What does a slide switch do? (a) flips up or down (b) closes near a magnet (c) springs back when let go (d) slides side to side
- 26.True or false: a push button closes near a magnet. (a) True (b) False
- 27.🔘 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 ON, C is ON and D is OFF. Does the bulb glow? (a) Yes (b) No
- 28.🔘 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
- 29.🔘 Which kind of switch stays where you flip it? (a) a tilt switch (b) a toggle switch (c) a slide switch (d) a reed switch
- 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 ON and C is ON. Does the bulb glow? (a) Yes (b) No
- 31.True or false: a reed switch stays where you flip it. (a) False (b) True
- 32.🔘 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) Yes (b) No
- 33.🔘 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) No (b) Yes
- 34.True or false: a reed switch slides side to side. (a) False (b) True
- 35.🔘 A bulb and a cell are joined through 5 switches on 5 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?
- 36.🔘 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 OFF. Does the bulb glow? (a) No (b) Yes
- 37.True or false: a slide switch closes when tipped over. (a) True (b) False
- 38.🔘 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?
- 39.What does a push button do? (a) closes when tipped over (b) works only while pressed (c) stays where you flip it (d) flips up or down
- 40.True or false: a slide switch works only while pressed. (a) True (b) False
Answer key
- Yes
- a push button
- 4
- when either is ON
- closes near a magnet
- springs back when let go
- closes when tipped over
- opens or closes the loop
- Yes
- closed
- a push button
- a reed switch
- a slide switch
- No
- a toggle switch
- No
- stays where you flip it
- Yes
- True
- flips up or down
- a tilt switch
- True
- when both are ON
- False
- slides side to side
- False
- Yes
- No
- a toggle switch
- No
- False
- No
- No
- False
- 1
- No
- False
- 3
- works only while pressed
- False
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