Classify the following simple machines :
(a) a railway signal
(b) A door knob
(c) A jack screw
(d) a staircase
(e) a bread knife
(f) a wheel barrow
Classify the following simple machines :
(a) a railway signal
(b) A door knob
(c) A jack screw
(d) a staircase
(e) a bread knife
(f) a wheel barrow
- Simple machine: A machine is a device that helps us with its heavy loads, speeds up the motion, and changes the direction of a force in the desired direction.
- Inclined Plane, Wheel and Axle, Pulley, Lever, Screw, and Wedge are examples of simple machines.
(a) A railway signal - It is an example of a Lever of first-order because the fulcrum is in between load and effort.
(b) A door knob - It is an example of a lever of second order because the load is in between effort and fulcrum.
(c) A jack screw - a big lever
(d) A staircase - It is an example of an inclined plane because any sloping flat surface along which a load can be easily pushed or pulled is called an inclined plane.
(e) A bread knife - It is an example of a lever of third-order because the effort is in between the load and effort.
(f) A wheel barrow - It is an example of a wheel and axile because Wheelbarrows have a wheel at the fulcrum with a smaller, cylindrical axle at the center. The wheelbarrow's wheel and axle help it move without friction, making it easier to push and pull.
- Simple machine: A machine is a device that helps us with its heavy loads, speeds up the motion, and changes the direction of a force in the desired direction.
- Inclined Plane, Wheel and Axle, Pulley, Lever, Screw, and Wedge are examples of simple machines.
(a) A railway signal - It is an example of a Lever of first-order because the fulcrum is in between load and effort.
(b) A door knob - It is an example of a lever of second order because the load is in between effort and fulcrum.
(c) A jack screw - a big lever
(d) A staircase - It is an example of an inclined plane because any sloping flat surface along which a load can be easily pushed or pulled is called an inclined plane.
(e) A bread knife - It is an example of a lever of third-order because the effort is in between the load and effort.
(f) A wheel barrow - It is an example of a wheel and axile because Wheelbarrows have a wheel at the fulcrum with a smaller, cylindrical axle at the center. The wheelbarrow's wheel and axle help it move without friction, making it easier to push and pull.
