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Forces can be classified under two types: contact and non-contact force
1.Contact forces: frictional force,tension force, air resistance force,
applied force (mascular force) and spring force.
2.Non contact forces: gravitational force, electrostatic force, magnetic force
Applied force: forces that we apply with our hands, legs are applied force such as weight lifting or pulling an object
Gravitational force: the force with which objects pull each other.
For example earth exerts a gravitational force on us that is strong enough to keep us bound to it.
Electrostatic force: the force between electric charges.
This method is used in electric air purifiers and in factories to purify air in chimneys before letting it escape into the atmosphere.
Magnetic force:the force exerted by magnets on each other and on metals such as iron, cobalt and nickel is called magnetic force.
Since magnets attract iron they are used to separate waste iron objects or scrap iron from garbage dumps so that they can be recycled.
1.Contact forces: frictional force,tension force, air resistance force,
applied force (mascular force) and spring force.
2.Non contact forces: gravitational force, electrostatic force, magnetic force
Applied force: forces that we apply with our hands, legs are applied force such as weight lifting or pulling an object
Gravitational force: the force with which objects pull each other.
For example earth exerts a gravitational force on us that is strong enough to keep us bound to it.
Electrostatic force: the force between electric charges.
This method is used in electric air purifiers and in factories to purify air in chimneys before letting it escape into the atmosphere.
Magnetic force:the force exerted by magnets on each other and on metals such as iron, cobalt and nickel is called magnetic force.
Since magnets attract iron they are used to separate waste iron objects or scrap iron from garbage dumps so that they can be recycled.
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