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