Post: The Invisible Force

We have gone over the conservation of energy. Now, it is time for the next level: gravity. You might have heard of it before, but this post will briefly remind you of this invisible force and how it acts. The next post will go more deep into gravity and explain how to find the gravitational force. But for now, let’s dive into what gravity is.

What is Gravity?

In simple words, gravity is an invisible force that makes objects fall towards Earth. Try jumping up. The fall that you experience is caused by gravity. If there was no gravity, we would all be floating. Different planets have a different gravitational force, so you can last longer in the air or vise versa. Anywhere you go, you will experience gravity. Your house, the moon, mars, etc.

Everyday Objects

Gravity works on every object with mass - if you drop a stick, it will fall down. When an astroid enters Earth’s atmosphere, it falls down and crashes. Or if you throw a basketball, it comes back down. Isaac Newton discovered gravity in the 17th century. An apple fell down, and he wondered why the it fell directly down instead of up or sideways. That was the beginning of universal gravitation.

Gravity on Particles

You might be thinking, “If particles don’t fall, there is no gravity acting on them.” Particles don’t drop down. But there is still gravity acting on them. That is because particles are so light that other forces can beat gravity. The less heavy an object is, the weaker the gravitational pull. But, if they are lighter, wind can easily pick them up. To conclude, gravity works on particles, but they have a small mass so other forces can act on them much stronger than gravity.

Conclusion

Again, gravity works on all objects with mass, including me and you. It even works on particles, but other forces that are stronger with lighter objects beat gravity. Gravity works better on objects with more mass. This concludes my introductory post on gravity. You can check out other posts on this website and in the physics section. Thank you for reading!