force vs work vs power
The common interpretation of force is the ability to do work. You must have energy to accomplish work - it is like the currency for performing work.
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Their range is infinite and like gravity decreases at the square root of distance between charges.
. If youre seeing this message it means were having trouble loading external resources on our website. Work is force times distance. This is easier to understand if you realize that Work Force x Distance.
For a conservative force field the work done can be taken as a state function. The SI unit of work is Joule J. Power vs Work Power and work are two very important concepts discussed in mechanics.
Electromagnetic force is caused by electrical charge and can attract in the case of opposing charges or repel where charges share the same polarity. A force of 20 newtons pushing an object 5 meters in the direction of the force does 100 joules of work. Power F d t F v N m s W J s kgm2 s3.
Work is the area under the curve of the force vs. Power is the rate of energy consumed in a unit of time Power Work time. To get both moving at a speed of 30 ms requires the same amount of work.
The force applied to an object can be graphed as a function of the position of the object. If the force is not constant we can divide the graph into sections with simpler shapes and add. The work done is equal to the area under the force vs.
However since the racing car has more power it can reach. In exercise its the rate of performing muscular work with potential energy becoming work aka moving weight or heat aka you getting warm. Work describes the.
Definition and Mathematics of Work. While power is the amount of energy consumed during an action over the body. Power is the amount of energy that is transferred in a unit of time.
Work can also be measured in units like electron volt eV kWh MWh and GWh. As an example a racing car and a family sedan might have the same mass. No movement no work same force bigger distance more work etc Power is work divided by time.
An object with kinetic energy can do work by colliding with something Share. The CGS unit for work is erg. Work is a scalar quantity.
Science Class 11 Physics India Work energy and power Introduction to work. The major difference between force and power is that force is an action on a body or interaction of two bodies. Shows you how to determine the amount of work done on a object from the force vs.
Calculating work done by a. This energy is then transferred to the object which the force is acted upon. The SI unit of power is Watt W.
Work F d N m J kgm2 s2. Lesson 2 - The Work-Energy Relationship. Lesson 1 - Basic Terminology and Concepts.
Work Force Displacement. To do 100 joules of. Work is referred to as the process of energy that is transferred to an objects motion by applying force.
Exchange particles photons have a relative strength of 10 -2 and a range m of. It must be noted that to do work a force is required but every force does not necessarily do work. The equation to calculate power is.
Each has given a. Prior to Weber English philosopher Thomas Hobbes argued the necessity of state power and force calling his theory The Leviathan. Calculating the Amount of Work Done by Forces.
This force does work on the second object. Power describes the rate of energy transfer. It is generally represented as the product of displacement and force.
Consider the example of two labors A and B. The equation to calculate work is. Is the capacity for doing work.
The SI unit of work is Joule named in honor of the English physicist James Joule. Areas above the position axis are positive work and areas below the axis are negative work. Same work done in a shorter time higher power Energy is the capacity to do work.
Practice calculating the work done by a force from a force vs. To apply a force an amount of energy is required. Thus we can say that 1 watt is the power that does work at the rate of 1 Joule per second.
Power is a scalar quantity.
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