Gravitational forces and how they can effect space & time
Tiffany Schiwy
Grade 9
Presentation
No video provided
Problem
How gavitational forces affect space & time
Method
RESEARCH: Do studing and research on search engines and use chat gpt to simplify it in a way I will be able to understand it since im only grade 9 and we have not discussed astrophysics or phyics or anything related to it in that matter. However, I personally find it cool and the research behind it is even better. This allows me to gradually get a hold of the information on my level so I can rewrite it in my words in my presentation. (Sites visited: https://chatgpt.com/, https://en.wikipedia.org/wiki/General_relativity, https://www1.grc.nasa.gov/beginners-guide-to-aeronautics/newtons-laws-of-motion/, https://en.wikipedia.org/wiki/Newton%27s_laws_of_motion, https://en.wikipedia.org/wiki/Dark_matter)
VISUAL: I plan to demonstate a interactive visual on general relitivity by using a fabric cloth over the top of a bowl and place something with more weight in the centre and roll marbles on it to demonstrate the fabric of space-time. (search up "general relitivity demo" on any search engine or media since there are many examples online! it usually consists of a large trampoline for it but i had to improvise because I'm not buying a whole trampiline, mostly because i have no where to put it.)
PAMPHLETS: just mostly to advertise my booth / trifold but also to educate and give a simple explaination on what my project is about in simple terms. (you can few it at: https://www.canva.com/design/DAGfq_uj7mQ/qI7_h0JJcc5z8PjV_GI2yA/view?utm_content=DAGfq_uj7mQ&utm_campaign=designshare&utm_medium=link2&utm_source=uniquelinks&utlId=hd98dbba761.)
ESSAY PORTION: a 1818 word essay on Astrophyics, Netwons laws of gravity, Albert Einstien and general relitivity and lastly, how dark matter may affect gravity.
TRIFOLD: not done yet, I was planning of working on it during the spring break.
Research
mass and gravity, feneral relitivity, Newtons laws of motion, frabic of space, gravitational waves in space, gravitational lensing, time dialation, curvature of space time, gravitational redshifting (a phenomonon of light bending), and dark matter
other concepts to explore: the differences in mass between stars and how they effect their gravitational pull, how the moon effects tidal waves on earth, how the sun takes up 99% of the total mass in the solar system and how the orbit of the earth around the sun effects time.
Sites visited:
https://en.wikipedia.org/wiki/General_relativity, https://www1.grc.nasa.gov/beginners-guide-to-aeronautics/newtons-laws-of-motion/
Data
Words from my own essay on data from scientists:
" This first test was to bend light by the use of gravity, in which Einstein predicted that if his theory was correct, light would bend around a massive object such as the sun; This was the first major experimental confirmation of the theory in 1919, and it explained phenomena like Mercury’s orbit, which Newtonian laws simply couldn’t solve. More tests in this time period involving the sun predicted that light emitted from a physical body would be redshifted (the act of something emitting light away from its core as it slowly loses energy the further it gets away causing longer wavelengths), which was proved to be correct in the experiment." -Einstien's experiments and data
"three laws of motion, those laws being the: “law of inertia” that explains that if an object is at rest it will remain in rest and if a body is in motion it will remain in motion unless acted upon by an external force. Secondly, the “law of acceleration” explains that the force that is acting upon an object will equal the mass times the acceleration (F=ma or Force= Mass x Acceleration). Lastly, the “Law of action and reaction” being that every action has an equal and opposite reaction, such as the earth pulling the moon and the moon pulling the earth." -Newtonian laws of motion
" experiments are needed and many lovely scientists have already done as much as to prove it! For starters, it explains the irregular rotation of stars moving way faster than they should according to Newtonian law which states that stars further from the galaxy's core would spin significantly slower but that just doesn’t seem to be the case in certain situations when they orbit the galaxy at a constant speed, which means that there is another mass producing its own gravitational pull that we can't quite see for ourselves. This was proved in the 1970’s by Vera Rubin, an american astronomer with mathematics found out further stars were travelling in an orbit just as fast as the ones near the centre! In the 1930’s, the first discovery of dark matter was by Fritz Zwicky, a Swiss astronomer, that came up with it due to observing the formation of galaxy clusters and the significance of the evidence on dark matter was particularly because most scientists and astronomers did not approve of the idea at the time, therefore, when it was proved, the news became widely spread since no one expected it to be true." -Data presented from Vera Rubin & Fritz Zwicky
"Other experiments include gravitational lensing, or simply the bending of light through a high-density object; This plays a role because of the galaxy clusters we talked about, it is easy to observe gravitational lensing within them which also proves the existence of dark matter." - Both Vera Rubin and Fritz Zwicky again
"Lastly, for the last piece of evidence, it is possible to see the leftover energy from the big bang (basically looking into the past due to time dilation and gravitational redshift and blueshift factors), there are tiny temperature fluctuations which can also further help prove its existence." - Also Vera Rubin and Fritz Zwicky.
Conclusion
Gravity and mass aren’t just simple forces that keep us stuck with our toes glued to the rocky floors of our home planet, it is the very fabric responsible for shaping the things within our cosmos like galaxies, time and the universe itself. Whether it be the Newtonian three laws of motion, Einstein's genius idea of the curvature of space-time or the unexplainable phenomenon of dark matter, scientists across the world currently and in the future strive to continue understanding the unexplainable that is gravity and mass and how it affects space and time for many generations more to come with more advanced technology. Who knows how far humanity will have advanced by then? But one thing remains certain: the concept of gravity will forever stay one of the most bizarre and fascinating things humanity has ever possibly discovered as it holds together the most fundamental forces within our galaxies and beyond.
Citations
Chat gpt (for research, I wrote this in my own words while still following the concept), wikipidea (https://en.wikipedia.org/wiki/General_relativity & https://en.wikipedia.org/wiki/Newton%27s_law_of_universal_gravitation)
Acknowledgement
Issac Newton, Albert einstien, Gallileo Galilei, etc.