Does Life Really Need Gravity?
- Well of course! Life does need gravity.
What Can Gravity Cause?
What Causes Gravity?
- If there was no gravity, our bones and muscles would be out of place including our internal organs
- Gravity can cause health problems such as bone loss, muscle atrophy, and fluid shifts
- Physicists have only partially answered how gravity is caused.
- Eggs would fail to hatch without gravity to keep the yolks near the shell
- Humans will have trouble breathing without gravity
- Gravity makes stars burn by squeezing their matter together
- Scientists think that gravity is caused by carrier particles called "Gravitons"
Why is the Mystery of Gravity
Unsolved?
- Gravity can also cause potential energy
- Though the cause of gravity is unsolved, Issac Newton was the first to comprehensively describe it
How are We Relevant?
Physicists have not solved the mystery of gravity yet because they recall it as one of the most profound mystery in all of science.
- Well, gravity effects us everyday but in a good way. Gravity keeps us from floating off into space and suffocating.
Though physicists & astronomers have not solved the mystery of gravity, they are now asking a new question: What is the fate of the universe?
Who was Sir Issac Newton?
How Powerful Can Gravity Really Be?
Gravity holds together everything in the entire universe
What is Gravity?
- Gravity is a non contact & fundamental force
- Gravity affects everything with mass in the universe
The sun's gravitational pull keeps the planets, comets, asteroids, meteors, everything in our solar system in orbit because of its enormous size.
Gravity is one of the weakest
forces
Basically everything is held together by gravity
Sir Issac Newton was an intelligent physicist and mathematician who lived 300 years ago and came up with Newton's Three Laws of Motion. He realized that there was a force, pulling objects of mass to the ground when he saw an apple fall out of a tree
What Causes Gravity?
Newton's First Law
of Motion
The Mysterious Force
1. Every object in a state
of uniform motion tends
to remain in that state of motion
unless an external force
is applied to it
Newton's Third Law of Motion
Information You Probably Want to Know About
Newton's Second Law of Motion
- Black holes(matter squeezed together into a tiny space) have the strongest gravitational pull in the entire universe
- Gravity helps the growth of plants and vegetation
- For every action there is an equal and opposite reaction
- The relationship between an object's mass, its acceleration, and the applied force
- Our weight varies on every planet depending on its gravitational pull
- A better word for gravity is "dark energy"
Reaction force of
table on book
Force of attraction
between book and Earth