questions (1 Viewer)

[Monsterman]

Laws of physics? what are they
in the text book (jacaranda), it says that Einstein proposed that the laws of physics hold in all frames of reference.
is that just referring to the principle of relativity or are there more?

and does constant velocity = constant acceleration?

 

[fallingstar]

Laws of physics? what are they
in the text book (jacaranda), it says that Einstein proposed that the laws of physics hold in all frames of reference.
is that just referring to the principle of relativity or are there more?

and does constant velocity = constant acceleration?

no no no no
acceleration is a change in velocity.
constant velocity = no acceleration

 

[fallingstar]

And i think Einstein is referring to all of the laws of physics in general. You don't have to know them, I don't think. Just know that they hold.

 

[Monsterman]

And i think Einstein is referring to all of the laws of physics in general. You don't have to know them, I don't think. Just know that they hold.

all the laws of physics in general meaning what? =S

and thank you for the acceleration. i should had thought of some mathematics..

 

[helper]

Conservation of momentum etc

 

[raniaaa]

einstein believed in the unity of physics, as in all physics principles from across the specialised fields. for our purposes only mention the principle of relativity as that's most relevant. but basically einstein believed that any physics law should uphold irrespective of the field it's applied in, for instance the principal of relativity upheld when tested mechanical physics, subsequently he believed it should prove true when applied for optical physics (hence you would see your reflection when in a train moving at relativistic speeds).

 

[x.Exhaust.x]

einstein believed in the unity of physics, as in all physics principles from across the specialised fields. for our purposes only mention the principle of relativity as that's most relevant. but basically einstein believed that any physics law should uphold irrespective of the field it's applied in, for instance the principal of relativity upheld when tested mechanical physics, subsequently he believed it should prove true when applied for optical physics (hence you would see your reflection when in a train moving at relativistic speeds).

Woah. I don't think you need to know it in that much detail (just a simple experiment of the relativity of simultaneity will do, as well as time dilation, length contracton, mass dilation etc).

To OP: Just remember his two postulates which where.

1. The laws of physics are the same for all inertial frames of reference.
2. The speed of light (c) is a constant.

That's all you need to know.

 

[Monsterman]

Woah. I don't think you need to know it in that much detail (just a simple experiment of the relativity of simultaneity will do, as well as time dilation, length contracton, mass dilation etc).

To OP: Just remember his two postulates which where.

1. The laws of physics are the same for all inertial frames of reference.
2. The speed of light (c) is a constant.

That's all you need to know.

What they said was Einstein's thought experiment which was the seeing reflection part..
and I think you are right. i doubt they would ask this question though.