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