Newton's Laws of Motion

Hey guys, today I'll be talking about Newton's Laws of Motion. Newton's First Law of Motion is the Law of Inertia. Newton's Law of Inertia states that an object at rest tends to stay at rest, unless an unbalanced force acts on the object and causes the object to move. An example of Newton's Law of Inertia is a ball at rest doesn't have any inertia until an unbalanced force acts on the ball and causes the ball to be put in motion.

Another example of Newton's Law of Inertia is shown in the picture below.

 



 
Newton's Second Law of Motion is the acceleration of an object equals the net force divided by the mass and is in the direction of the net force. An example is a soccer ball sitting still and then somebody goes and kicks it.




Now lets talk about Newton's Third Law of Motion. Newton's Third Law of Motion is that forces always act in equal but opposite pairs. Another way of saying this is for every action there is an equal, but opposite reaction. This means that when you push on a wall, the wall pushes back on you with a force equal in strength to the force you exerted.
That's all for today guys, see you next time. Wait quick question.

Gravity

Hey guys I'm back, and today I'll be talking about gravity. Gravity is the force that is pulling you towards the center of the Earth and that keeps you from flying off into space. Except gravity isn't the only force acting on you. In 1589, there was a scientist named Galileo Galilei who had done an experiment that is still known to people now. He created an experiment where he dropped two balls of different masses from the top of the Leaning Tower of Pisa, to show that their time of descent was independent of their mass.
The day that Galileo died, Isaac Newton was born, which was kind of ironic because when one great scientist died, another was born. The once to be great scientist, and that was Sir Isaac Newton.

That's all for today guys, sorry it was short this time.

Force

Hey guys I'm back, and I'll be talking about force. Force is a push or a pull. There are so many different ways force is used, (not the force from the Star Wars Saga). There are so many different examples for force, but I'm only listing three. Let's say a ball is on the ground, motionless, then you pick it up and throw it, you just used force to throw the ball.

I know I don't ever put puns in my blog, but I'm bored so may the force be with you. Anyways back to what I was talking about. There isn't just one type of force, there are way more, but I'm only going to talk about a few different ones. There is balanced force, unbalanced force, net force, and centripetal force. A balanced force when two or more forces push on an object and the object doesn't move or change in velocity, then the forces are balanced.

An unbalanced force is when two people are pushing on both sides of a door. One person is stronger than the other person. The person with more strength will begin to move the door towards the other person. Therefore, the force is unbalanced or is an unbalanced force. Now let me tell you what a Newton is. 

(Again, not used to doing puns) and no, not Fig Newtons. A Newton is the SI unit of force. It's equal to the force that would give a mass of one kilogram an acceleration of one meter per second per second, and is equivalent to 100,000 dynes. Now let me talk about net force. Net force is the overall force acting on an object. 

For example, two people could push on a book at the same time, but in opposite directions. If the guy on the left was pushing the book with more force, then the prevailing force would be on the left and in this case, prevailing force is called the net force. Now that's what I call Big Data! Well guys, that's all for today see you next time.