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