Force Class6(adarsh Nagar)
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The Meaning of Force A force is a push or pull upon an object resulting from the object' s Interaction with another object. Whenever there is an interaction between two objects, there is a force upon each of the objects.When the interaction ceases, the two objects no longer experience the force.Forces only exist as a result of an interaction. Force is acting on a body causes that body to accelerate, that is, to change its velocity. The SI unit used to measure force is the newton (symbol N), which is equivalent to Kg.m.s-2. It is usually expressed by the equation F=m.a Where F is the force, measured in newtons m is the mass, measured in Kilograms
a is the acceleration, measured in metre per second squared
Categories: For simplicity sake, all forces between objects can be divided into two Categories:1. Contact forces, and 2. Forces resulting from action- at-a-distance 1. Contact forces:- Contact forces are types of forces in which the two interacting objects are physically contacting each other . 2. Action-at-a-distance forces:- Action-at-a-distance forces are types of forces in which the to interacting Objects are not in physical contact with each other, yet are able to exert a push or pull despite a physical separation
Contact Forces
Action- at- Distance Forces
Frictional Force
Gravitational Force
Tensional Force
Electrical Force
Normal Force
Magnetic Force
Air Resistance Force Applied Force Spring Force
Fundamental Forces:The 4 fundamental forces in nature are: 1.The Strong Nuclear Force –operates only over distances less than about 10-16 meters. It holds protons and neutrons together to make nuclei and Is responsible for nuclear fusion and fission.
2.The Electromagnetic Force - responsible for all electrical and magnetic phenomena, holds electrons in orbit around protons to make atoms, atoms together to make molecules, etc.
3.The Weak Nuclear Force - operates only over distances of nuclear dimensions. It is responsible for radioactive decay.
4.The Gravitational Force - responsible for ``weight'', holds the planets in orbit around the Sun, the Sun in orbit around the center of the galaxy, etc.
Devolped By: Govt. Girls Sec. School,Adarsh Nagar,Jal. Bibliography:1. 2.
www.asknumbers.com/WhatisForce.aspx www.glenbrook.k12.il.us/GBSSCI/PHYS/Class/newtlaws/u2l2a.html
Student's Name : 1. Anu 2. Bhawna
a is the acceleration, measured in metre per second squared
Categories: For simplicity sake, all forces between objects can be divided into two Categories:1. Contact forces, and 2. Forces resulting from action- at-a-distance 1. Contact forces:- Contact forces are types of forces in which the two interacting objects are physically contacting each other . 2. Action-at-a-distance forces:- Action-at-a-distance forces are types of forces in which the to interacting Objects are not in physical contact with each other, yet are able to exert a push or pull despite a physical separation
Contact Forces
Action- at- Distance Forces
Frictional Force
Gravitational Force
Tensional Force
Electrical Force
Normal Force
Magnetic Force
Air Resistance Force Applied Force Spring Force
Fundamental Forces:The 4 fundamental forces in nature are: 1.The Strong Nuclear Force –operates only over distances less than about 10-16 meters. It holds protons and neutrons together to make nuclei and Is responsible for nuclear fusion and fission.
2.The Electromagnetic Force - responsible for all electrical and magnetic phenomena, holds electrons in orbit around protons to make atoms, atoms together to make molecules, etc.
3.The Weak Nuclear Force - operates only over distances of nuclear dimensions. It is responsible for radioactive decay.
4.The Gravitational Force - responsible for ``weight'', holds the planets in orbit around the Sun, the Sun in orbit around the center of the galaxy, etc.
Devolped By: Govt. Girls Sec. School,Adarsh Nagar,Jal. Bibliography:1. 2.
www.asknumbers.com/WhatisForce.aspx www.glenbrook.k12.il.us/GBSSCI/PHYS/Class/newtlaws/u2l2a.html
Student's Name : 1. Anu 2. Bhawna
