Forces, Physics

Forces:

If a Force is applied to a body, it will cause that body to move.  A body that is already moving will change its speed or direction.  Note that the term 'change its speed or direction' implies that an acceleration has taken place.

This is usually summarised in the formula;

                            F  = ma

Where F is the force,  m = mass of body and a = acceleration.

The units of force should be kg.m/s2 but this is replaced by the Newton.

Hence, "A Newton is the unit of force that when applied to a mass of 1 kg. causes that mass to accelerate at a rate of 1 m/s2.

Forces can also cause changes in shape or size of a body, which is important when analysing the behaviour of materials.

 

Posted Date: 9/14/2012 7:14:19 AM | Location : United States







Related Discussions:- Forces, Assignment Help, Ask Question on Forces, Get Answer, Expert's Help, Forces Discussions

Write discussion on Forces
Your posts are moderated
Related Questions
A helium nucleus and a neon nucleus are separated by a distance of 3.0 nm. The charge of the helium nucleus is +2e while that of a neon nucleus is + 10e .Find the magnitude of the

Gravitational field can also be shown by lines of force. This is same in several ways as that of electric lines of forces. With one dissimilarity, electric charges are negative and

There exist two types of charges in nature:- (i) Positive charge         (ii) Negative charge Charges with the same electrical sign repel each other, and charges with oppo

illustrate the parts and function of motor

Methods of Demagnetization: 1. A magnet loss it's magnetic properly when it is heated strongly. 2. Practically a magnet can be demagnetized by hammering when it is placed in

What is the means in which light waves travel? Ans: Light is the only type of wave that doesn't require a medium. Confirmation that light will travel through vacuum is the

You design a ¼-arm bridge circuit that provides the maximum possible efficiency, using a 15 V constant voltage power supply you have in your lab.  The circuit you design is shown a

Explain Centripetal force?? Sir Isaac Newton suggested that motion in a straight line is most natural, and that deviations from this type of motion are caused by a force pullin

The measurements taken in Ramdesns eyepiece more worthy (reliable) than Huygens eyepiece. Why? Describe critical angle. show its relationship with refractive index.

Planck equation The quantum mechanical equation relating to the energy of a particular photon E to its frequency nu: E = h nu.