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