Gravity

Gravity is the mysterious force that makes everything fall down towards the Earth. Gravity is a force which tries to pull two objects toward each other. Anything which has mass also has a gravitational pull. It turns out that all objects have gravity. The more massive an object is, the stronger its gravitational pull is (like the Earth and the Sun, have a lot more gravity than others).Earth’s gravity is what keeps you on the ground and what causes objects to fall. Gravity is what holds the planets in orbit around the Sun and what keeps the Moon in orbit around Earth. The closer you are to an object, the stronger its gravitational pull is. Gravity is what gives you weight. It is the force that pulls on all of the mass in your body.

Earth-Moon-system-and-gravity20150925-22503-1j7na2m

Gravity between Earth and Moon

Is gravity important?

Gravity is very important to our everyday lives. Without Earth’s gravity we would fly right off it. We’d all have to be strapped down. If you kicked a ball, it would fly off forever. While it might be fun to try for a few minutes, we certainly couldn’t live without gravity.

Gravity also is important on a larger scale. It is the Sun’s gravity that keeps the Earth in orbit around the Sun. Life on Earth needs the Sun’s light and warmth to survive. Gravity helps the Earth to stay just the right distance from the Sun, so it’s not too hot or too cold.

Gravity was first mathematically described by the scientist Isaac Newton. His theory is called Newton’s law of universal gravitation. Later, Albert Einstein would make some improvements on this theory in his theory of relativity.

So, now we know what exactly is gravity. To learn some of the fun facts about gravity see-

Gravity

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