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  1. #1 theory of relativity 
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    hello i am a 9th grader in a physical science class. as a project i did a report on einstein. i got the basics of the theory of relativity, but i just couldnt understand some of it. can someone explain it to me on a 9th grade level. also some details on how quantum physics works. much appreciated.


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  3. #2  
    Comet Dust Collector Moderator
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    Welcome.

    I don't think it's realley explainable on a 9th grade level...It's damn complicated and make your brain hurt even after your read it a few dozen times. Maybe some of the other posters can give it a shot. I wouldn't even try


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  4. #3  
    Moderator Moderator Markus Hanke's Avatar
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    Quote Originally Posted by billy joe View Post
    hello i am a 9th grader in a physical science class. as a project i did a report on einstein. i got the basics of the theory of relativity, but i just couldnt understand some of it. can someone explain it to me on a 9th grade level. also some details on how quantum physics works. much appreciated.
    Is it Special Relativity that you are interested in, or General Relativity ?
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  5. #4  
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    special relativity. i just need it put in a way that i might be able to understand. after all i do have a college grade reading level.
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  6. #5  
    Quagma SpeedFreek's Avatar
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    Hi there Billy,

    For starters, you could have a look at this thread:
    http://www.thescienceforum.com/physics/14884-special-relativty-primer.html

    And post any questions you have about that thread here:
    http://www.thescienceforum.com/physi...iscussion.html

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  7. #6  
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    I am 39 years old, and I can only understand a few simple parts of it.

    There are many documentaries, people, and books that try to explain relativity. (but I believe only a fairly small % of people can fully understand it.)


    And to be able to (fully) understand relativity, you may need to know advanced (college) level math. And you may need to know about many other scientific theorys as well.


    I have looked at a few books and websites, in order to try to understand relativity, and I have noticed there are many diferent methods used to try to explain it.



    You could try Googling things like "how to understand relativity" or "what is relativity" and maybe some website will explain relativity in the way, that you are looking for.

    Or you could google " free documentaries online" and watch a documentary about relativatity. These documentarys may explain relativity in a way you can understand.

    Or maybe you could goto youtube, and search things like "understanding relativity" ex. ex. Maybe you could find a video about relativity, that was made by someone your age, you may relate to them better than us

    And if you dont find the understanding you are looking for, dont feel bad about it. Like MeteorWayne said "I dont really think its explainable on a 9th grade level."


    My personal feeling is, if you really want to understand this stuff, and you spend some time studying about relativity, in a few years you would be able to understand a good amount of the thing called relativity.


    I have a familly friend who is older than me, and he claims to understand relativity, and I believe him. (But he had to read a WHOLE bunch of science books to understand it)
    Last edited by chad; March 20th, 2012 at 01:22 AM.
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  8. #7  
    Moderator Moderator Markus Hanke's Avatar
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    Quote Originally Posted by billy joe View Post
    special relativity. i just need it put in a way that i might be able to understand. after all i do have a college grade reading level.
    Well, you could start with some basic ideas :

    1. Special relativity (SR) is valid for reference frames that move at a uniform speed, i.e. there is no acceleration of any kind. These frames are called inertial frames.
    2. All inertial frames observe the same laws of physics
    3. All inertial frames measure the same speed of light ( this is probably the core idea of SR )
    4. All inertial frames are equivalent - without any external reference point, two inertial frames cannot tell which one is moving and which one is stationary
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  9. #8  
    Moderator Moderator Markus Hanke's Avatar
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    Quote Originally Posted by chad View Post

    And if you dont find the understanding you are looking for, dont feel bad about it. Like MeteorWayne said "I dont really think its explainable on a 9th grade level."
    I would tend to disagree a little. Once you understand the basic idea, and apply some logic, the rest falls into place naturally. You wouldn't need years to learn relativity ( unless you want to get into the nitty gritty details of the maths ).
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  10. #9  
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    Really nice thread you have started here i got some useful points, thanks.
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