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