Great Gravity

Well done to Anjli, Dhriti, Diljot and Maya for their submission on the importance of gravity. Take a look at their cover letter below:

Gravity is an essential part of our lives; this is why we believe it is the most important part of physics. The sun’s gravity keeps us from floating around space. Without gravity humans and all other objects would become weightless. Gravity also makes the moon orbit us which in turn creates tides and waves. It might seem like a fantasy to float weightlessly through the air but practically, the human body would go through negative change, such as muscle and bone atrophy while living in zero gravity. Even the rivers, lakes and oceans on Earth wouldn’t stand in zero gravity, without which humans cannot survive. Gravitational field strength (g) is measured in newtons per kilogram. The Earth’s gravitational field strength is 9.8 N/kg. This means that for each kg of mass, an object will experience 9.8 N of force. Where there is a weaker gravitational field, the weight of an object is smaller.

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