May the FORCE be with you...

Hello to all the people reading this! I'm not really the one to write puns... So... yeah... I used one in my title and that's it. Sorry! It might sound like I am a couple times though. :D Anyways, this week we are learning about... The force. Not the Star Wars force, just the scientific force... Okay, lets move on.

Force is basically a push or pull. Right now you have a force holding you down on the earth, *says hoping you know what it is* gravity. Another force that you have is reaction force. This is the force that keeps you upright standing so you don't sink into the ground. Also, when you are walking, you have a driving force that pushes you forward.

Did you know that Isaac Newton discovered all these facts about force? Well, that's probably why force is measured by Newtons. A newton is the standard measurement of force. That's probably the only way to describe it. An object can have multiple forces acting on it at once. A net force is the combination of all of the forces combined. For example, when you are driving in a car, the engine is pushing you forward, but the air resistance is slowing you down.

You measure net forces with Newtons. If both forces go in one direction, then you add the two together. If the forces are in opposite directions of each other, then you subtract the two and the larger amount of force wins. If they are equal forces, the net force is zero.

Remember that example I used with a car moving forward for net forces, well, it can be something else as well. If the air resistance has 20 Newtons going against the car and you are driving with 20 Newtons, the force is balanced and you stay stationary or at a constant speed. That is when you have a net force of zero. But, if the air resistance is 20 Newtons and you are driving with 50 Newtons, the force in unbalanced. The net force would be 30 Newtons to the direction the car is going.

Now let's talk about thrust. Yes, thrust... You read correctly. Thrust is a push of something suddenly or violently in one direction. How does this relate to force? Good question, person that doesn’t exist. Thrust relates to force because a force is a push or pull, so thrust falls into this category. Just look above for an example.

Wow, this was a long post this week. Oh! I almost forgot about something. Fun fact time! Centripetal force is when it forces something to follow a curved path. An example of that would be like when you are driving and have to make a U-Turn. You turn your car in a curved path. Easy! 

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xoxo Teemster! :D

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