dose ENERGY have WeIGHT?

Answer 1

No,
the ability to do work is a sign of energy, but energy can't be translated into weight.

Answer 2

Energy comes in many forms. For an instants Sound is a form of energy it has no weight it is the same in the case of Heat energy and like. Light is a form of energy but does it has weight a hot controversy yet to have a breakthrough. Wind energy is a sort of energy of course it has mass.

Answer 3

The simple answer is no.

The complicated answer is 'in some ways, yes'.

However, for energy to have weight, it first needs to have mass.

Take the case of light, as an example of energy.

Light is made up of particles called photons.

The consensus among physicists is that photon does not have mass.

But it is possible to look upon photons as having 'relativistic mass'. Relativistic mass is always measured in the context of the particle's velocity. This idea's flip side is called 'rest mass' or the mass of a body independent of an observer. Relativistic mass should never be confused with rest mass because it cannot be used in the sense mass is used in Newtonian physics.

Einstein's famous equation, E=mc2 (squared), is used to derive 'relativistic mass' by carrying m to the left side of the equation. This gives us m=E/c2. And now, you may go ahead and calculate the mass of light!

However, if you are really interested in pursuing this question, try reading it up on the Web. A good starting point should be http://en.wikipedia.org/wiki/Rest_mass

All the best.

Answer 4

Energy comes in several forms and for some the answer is, "Yes."

Weight is a measure of the gravitational tug produced by a large object like a planet or star. You weigh more on Earth than you would on Mars because the gravity is different. In space, away from other objects, you would be weightless. Light passing a large object like a star is bent by the gravitational field just like a comet or other object would be.

An interesting application of this phenomenon is the "gravitational lens" which occurs when light is bent around a massive object in space and brings the dispersing light back together to form an image of the distant object... second reference below.

Aloha

Answer 5

Mass has weight ans since the mass is proportional to the energy divided by the speed of light square...E=mc^2 or m=E/c^2.
Mass is potential energy.
ie: Hold a ball the mass of the ball is represented by "m"= (the ball has mass, right?)
You are holding the potential energy that is within the mass of the ball.
Now throw the ball againts a window...The speed of the ball goes from 0km/ sec (the potential energy of the ball you were holding) to Xkm/sec
(the energy of your throw and the mass of the ball determines its speed)
The ball then hits the surface of the window...The kinetik energy of the mass either brakes the glassor bounces back on it(depending on the strenght of the glass, the mass of the ball and the speed of the ball)

*DO NOT TRY THIS AT HOME! LOL

Answer 6

No - energy and mass (weight) are two seperate things. As shown in the equation E = MC^2, Energy is actually equal to mass multiplied by the speed of light squared. In other words, they are different forms of the same thing, and cannot have similar properties.

Answer 7

if your question was 'does energy have weight?' then my answer would have been"mass is a form of energy cos,if the mass were to to be completely dissappear at an instant huge amt of energy will be generated.this shows that mass is a form of energy."does this satisfy you,or you still have doubt that you asked about weight then,you do one thing just try to know the difference between mass & weight.......that's it.

Answer 8

Energy does not have weight per sa but it can effect the measurement of weight

Answer 9

energy can be changed to mass and mass to energy.happens all the time.so the answer is yes.besides everything is energy when you come down to it(in one form or the other).your question might be does anything have weight?

Answer 10

Yes. Energy has mass (Not really 'weight')

The conversion factor is rather famous.

E = mc^2

or, m = E/c^2

Where m = mass
E = Energy
C = the speed of light