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