The force and some technological applications depend in their motion on the effect of force
The force is the effect that changes the state of the object , The measuring unit of the force is ” Newton “ related to the scientist ” Isaac Newton “ , The motion of any object and its stopping need an effect which is the force , The motion increases by increasing the force .
At normal conditions , some objects are at rest , The object needs an effect to change its state from the rest to the motion and also from the motion to the rest , this effect is called the force .
The lever is a simple method to rise an object by the effect of the force , The weight acts as a force , So , when you hang a weight on a spring , you observe that the length of the spring increases by increasing the weight .
The technological applications depend in their motion on the effect of the force
A lot of home equipment that depend on motor pushing force in motion as the blender ( mixer ) , the electric fan , the washing machine and the electric sewing machine , Some means of transport that depend on hand pushing force in motion as the wheelbarrow .
The technological applications depend on the effect of force in rising heavy objects
The crane , the escalator ( a movable electric ladder ) , the fishing tool ( pulleys ) and the electric lift contain the pulleys that make the motion easy and the gears that transfer the motion .