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Types of contact and non-contact forces

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Marie Catiis

on 23 September 2012

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Transcript of Types of contact and non-contact forces

Contact and Non-contact forces
by group 2 What is a contact force?

contact force is a force that acts at the point of contact between two objects, in contrast to body forces... ...While a non-contact force is a force applied to an object by another body that is not in direct contact with it. The vehicle in the illustration has broken down and cannot move by itself. The tow truck has to pull it. Many younger students are yet to form strong views or in many cases any views at all about how magnets interact with matter or each other. They do not see the need to discriminate between magnetic forces and electrostatic forces (or gravity). To them, these often appear to be common experiences of the same invisible non contact force, usually only attraction. types of contact forces Frictional force is a force exerted by a surface as an object moves across is or makes an effort to move across it. tension force transmitted through a string, rope, cable, or wire when it is pulled tight on the opposite ends. Normal force force exerted on an object that is in contact with another stable object air resistance force
frictional force that acts upon objects in the air. Applied force forced applied to an object by a person or another object. Spring force force exerted by a compressed or stretched spring upon any object that is attached to it. types of non-contact forces gravitational force force of attraction between all masses in the universe Magnetic force associated with electric currents as well as magnets What is force? it is the influence that produces a change in a physical quantity examples of forces
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