GRAVITY

How Does

Affect

Like when a star looks different when it is

close to the Sun…

Light?

Why does Gravity affects light? I found out that gravity affects things that has mass. Now since light is made out of photons and since they have no

mass at all, how does gravity affect them?

QUESTIONS…

I needed a reason.

SO I FOUND THE REASON…

The easiest way of looking at it, is that light does not have mass, but it does have pure energy, instead.

According to a special relativity, energy is the same with mass, so even though photons do not have a rest mass, they have energy that gives them some "effective" mass which can be affected by any type of gravity.

It is also because gravity “bends” space while light only goes “straight” so that is why it looks like the star is moving when we are looking at it from Earth’s surface.

The technical answer to this question is that, no matter what happens, photons will follow a geodesic, which means “pertaining to the geometry of curved surfaces”. That geodesic object will make the light look like it is curved. Get it?

THANKS FOR WATCHING

WOOO HOOOOOOOO!!!!

Bend Light - http://www.ap.smu.ca/~ishort/ASTR1000/Images/StelEvol/Remnants/BHole/ Mice(part of gravity) - www.physicsclassroom.com/class/1dkin/u1|5a.cfm Lightning Energy - en.wikipedia.org/wiki/Electric_potential_energy Mass of Matter - www.propertiesofmatter.si.edu/massofmatter.html Nuclear Energy Power Plant – en.wikipedia.org/wiki/Nuclear_power Thinking Kid - http://www.empowermentresources.com/info2/childrenlearn-long_version.html Space Time Warp - http://uw.physics.wisc.edu/~himpsel/107/Lectures/Phy107Lect19.pdf