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Force and Pressure - Coggle Diagram
Force and Pressure
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These kinds of forces are applied when the objects do not come in contact with each other and yet are exerting a force upon each other.
Example: Muscular Force, Frictional Force
Example: Magnetic Force, Gravitational Force, Electrostatic Force
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LIQUID PRESSURE
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The pressure that a liquid exerts on the bottom of the container is dependent upon the height of the liquid in the container.
The liquid exerts equal pressure on different points on the walls of the container having the same depth.
ATMOSPHERIC PRESSURE
A layer of gases is present around the earth’s surface. The air present in the atmosphere exerts a pressure on the earth which is called atmospheric pressure.
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When two forces act in opposite directions the net resultant force is the difference of these two forces. The force has a magnitude which describes its strength.
If two forces are acting upon each other having equal magnitudes (strength) and in opposite directions then the net force acting on the object will be zero.
A barometer is a scientific instrument that is used to measure air pressure in a certain environment.
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When two forces act in the same direction, the net resultant force on an object is the sum of these two forces.
The force acting upon a unit area is called pressure.
Hence, the pressure exerted by an object depends upon its surface area.