force
TRANSCRIPT
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What’s Force?
Force is associated with push or pull resulting in motion of a body.
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Force can be divided into two types: i) Contact Force ii) Non Contact Force
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Contact Force
The source of force that comes from contact with the object on which the the force is applied.
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Muscular Force
The muscular force comes from muscles of man or animals. Every physical activity comes with a use a muscle , Hence they are muscular forces.
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Running
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Cutting of vegetables.
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Frictional Force
friction is the force which comes into play when
an moves in contact with the surface of the other.
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Walking.
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Non Contact Force
The source of force and the object on which the
force acts may remain distance from another.
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There are three types of non contact
force: i) Gravitational Force ii) Magnetic Force iii) Electro Static Force
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Gravitational Force
The pull force of the earth is called gravity.
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Apple falling from a tree…
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Catching a ball
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Magnetic Force
Magnetic force is a force which is exerted when a magnet pulls something.
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Horse shoe magnet…
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Bar Magnets.
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Electro Static force
If you rub a comb in your head and place it near some bits of paper, the papers gets raised.
This electro static pull exerts a force.
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Famous People..
Sir Issac Newton :
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Aristotle :
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Galileo Galilei :
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gravitational pull differs from place to place.
The level of pull for Tamil Nadu is….
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Input interpretation:
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