Sunlight and gravity are not considered matter because sunlight does not have a rest mass that is characteristic of matter while gravity is just a vector component of matter.
<u>Explanation:</u>
Sunlight has energy and momentum that makes it similar to matter but it cannot be considered matter when you consider all the factors that are characteristic of matter. Light is an electromagnetic wave that is made up of photons and the protons do not have rest mass.
Gravity is a vector component of matter that has both magnitude as well as direction and the gravity increases with increase in mass of an object.
Sunlight and gravity are not considered matter because they don't have mass or take up space.
Explanation:
Gravity is a basic and innate element of matter. If there is no matter then there won't be gravity.
But gravity is not considered to be matter because it is actually a force that attracts the matter. So basically gravity is a sort of force affecting the matter.
Sunlight has so many properties to be called as a matter like it has energy and momentum. But it consists of photons which do not have any rest mass, hence sunlight is not considered as matter.
