Does energy gravitate

  • Thread starter wolram
  • Start date
  • #1
wolram
Gold Member
4,267
557
I know this question has been asked before but i can not find it, if energy is effected by gravity how does it scale.
 

Answers and Replies

  • #2
mathman
Science Advisor
7,904
461
Light rays are affected by gravity. 1919 Eddington experiment matched a prediction of general relativity.
 
  • #3
marcus
Science Advisor
Gold Member
Dearly Missed
24,738
787
I know this question has been asked before but i can not find it, if energy is effected by gravity how does it scale.
Energy contributes to a thing's inertia, and to the amount is pulled by gravity, exactly in the proportion you would expect. energy = c2 times inertia
inertia = energy/c2

So if you have an iron canonball and you heat it, so it absorbs a little energy. Then its weight will increase proportionally by that amount. (that is, how much it is pulled)
and its inertia will increase in the same proportion as its weight does
 
  • #4
wolram
Gold Member
4,267
557
Thanks.
Mathman, Marcus
 

Related Threads on Does energy gravitate

  • Last Post
Replies
12
Views
1K
Top