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