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