When mass make space curved then why not energy ?

Question

matter and energy ultimatly the same thing then if matter makes space curved then why the energy not if due to energy space also effected then the space must be having some properties alike matter or energy , can these three are the form of energy?( space energy and matter)

thats why speed of light is limited because light effects space and make it curved so light speed is limited as like friction does on earth .

Answer 1

energy does curve space and create gravity. but it takes a lot of energy to create a tiny amount of mass.

example. neither bomb dropped on japan converted more than a gram of mass into energy. so all that energy in the atomic bombs dropped on japan is equivalent to a single gram of mass. its easy to see why scientists dont pay attention to energies gravitational effects. any you dont just see free energy. energy is either contained in a massive particle, and therefore its energy adds to the total energy of the particle and therefore its total mass.

or the energy is contained in a photon. this is the really cool part. the photon has 0 rest mass. but it has energy, so it should have some mass. so according to relativity, the photon has relativistic mass. that should explain why the photons speed is limited.

and no, space doesnt have to have properties like mass or energy. this is the second question youve posted about this, it makes no sense! there is no need whatsoever for spacetime to have properties of matter or energy. it has very few properties, the most noticeable of which is the curving of spacetime in the presence of mass.

Answer 2

you are incorrect about why the speed of light is what it is.  One photon doesn't bend space to any significant degree at all.

Answer 3

It does. In fact, dark energy is the mysterious missing stuff that is supposed to explain some of the weird things about the expansion of the whole universe (although I still don't know what the exact difference is between dark matter and dark energy ::)

Answer 4

You are right.

Energy does bend space. However, in comparison to the massive amounts of energy stored in matter energy such as photons have no where near enough oomph to bend space to any considerable degree.

I posted a few questions a while back like this because I wondered the same thing. If light is affected by the gravity produced by matter, than matter must be affected by light. The answer I got out of my searching was that all energy has gravity and therefore bends space.