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Force high school
Forces are interactions that can change the motion or shape of an object. A force is defined as having both magnitude and direction, making it a vector quantity. Forces can be contact forces, such as pulling on a spring or stopping a football, or non-contact field forces that act over a distance. When multiple forces act on an object simultaneously, the net force is the sum of all the individual forces and determines the object's motion. Free-body diagrams are used to analyze the different forces acting on a single object as a vector diagram.
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Force high school
- 1.
- 2. FORCE An action exerted on an object which may change the object’s state of rest, its shape or motion is called force.
- 3. The SIunit of force is the Newton and it is denoted by N. 1 N = 1 kg.1 m/s2
- 4. Forces can actthrough contact or at a distance If you pull on a spring, the spring stretches. If you pull on a wagon, the wagon moves. When a football is caught, its motion is stopped. These pushes and pulls are examples of contact forces. Another class of force is called field force that does not involve physical contact between two objects.
- 5. Force is avector Because the effect of a force depends on both magnitude and direction, force is a vector quantity.
- 6. Net Force If more than one force acts simultaneously on the same object, net force is the one that determines motion of the object.
- 7. Free-body diagram Afree-body diagram is used to analyze only the forces affecting the motion of a single object. Free-body diagrams are constructed and analyzed just like other vector diagrams.