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