- #1

- 259

- 16

Does the mass-energy equivalence mean that if we heat a body then its mass will increase?

- B
- Thread starter Robin04
- Start date

- #1

- 259

- 16

Does the mass-energy equivalence mean that if we heat a body then its mass will increase?

- #2

CWatters

Science Advisor

Homework Helper

Gold Member

- 10,532

- 2,298

Yes. Google will find an explanation.

- #3

CWatters

Science Advisor

Homework Helper

Gold Member

- 10,532

- 2,298

I should add it's a very small effect. E=mc^2 so m=E/c^2 and c is big.

- #4

- 259

- 16

So this means that the mass is not only dependent on the quantity of matter in that object, right?

- #5

- 663

- 491

E and p are of course frame-dependent, but it turns out that m is not, so it is a good and non-problematic generalisation of Newtonian mass. Contrary to what is known as "relativisitc mass"...

- #6

anorlunda

Staff Emeritus

- 9,137

- 6,120

https://en.m.wikipedia.org/wiki/Invariant_mass

Warning, some of that article is more advanced than B level.

- Last Post

- Replies
- 14

- Views
- 3K

- Last Post

- Replies
- 10

- Views
- 2K

- Last Post

- Replies
- 5

- Views
- 3K

- Last Post

- Replies
- 1

- Views
- 2K

- Last Post

- Replies
- 7

- Views
- 5K

- Last Post

- Replies
- 12

- Views
- 3K

- Replies
- 1

- Views
- 2K

- Replies
- 18

- Views
- 2K

- Replies
- 3

- Views
- 2K

- Replies
- 4

- Views
- 3K