Thursday, June 11, 2020

Gravity

WALT organise text into paragraphs.
We are learning about gravity in writing.
Here is my explanation.

Imagine you tripped up and your lunchbox flies out of your hand. What happens to it?

The lunchbox falls down. Why? The lunchbox fell down because of gravity. Gravity is a force that pulls us back down to earth, unlike space. For example, pretend you have a slinky attached to your shoes. It allows you to jump up! But… eventually fall back down. 

Gravity is a natural force that keeps us on the ground instead of floating off into space. A force pushes or pulls when it acts against an object. It can cause an object to move or change direction.  
Gravity is like invisible super glue that keeps us all on earth. You can’t see it, but it’s always there.

There once was a man called Isaac Newton.
He was the first person to really study gravity.
You might’ve heard this story when Sir Isaac Newton was sitting under an apple tree and an apple fell and hit him on the head. Boink! He wondered, why doesn’t the apple float up, or fall sideways? That’s when he made up the three laws of Newton. 
The first law was that an object will stay there unless an unbalanced force acts upon it. The second law  is force equals mass equals acceleration, meaning the more force, there’s more mass, which is the object of matter, equals more speed. The 3rd law of motion is for every action there is an opposite reaction, like if you push a chair, it will move, which is the reaction.

Squash a boink down and will bounce up. The more pressure you put on it the higher it will bounce but also,  fall back down because of the cause of gravity.


If you invert a dropper popper, it will activate it. Dome-down, with a ping pong ball, it will fly into the air when it hits ground, it will revert and launch the ping pong ball. It will go in the air but gravity will still take hold of it and fall back down.

What happens when you throw a ball up, sideways, or down? The answer is the same. It will still stay in the air for a while, but then, once again, go back down.

So, no matter where you throw a ball, its going down. Gravity is cause and effect. It will cause objects on earth to stay on the ground, like us!.  You will get an opposite reaction, which is Newton’s 3rd law of motion. An object comes back down on earth, no matter what.

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