Motion by Jess

I’m going to talk about motion. Motion is a very pretty important thing in physics right? It’s the way things move, stop and turn. Without motion we would just be sitting here not moving at all: that would be pretty boring. In class we are building a self- propelled vehicle and you need to know a lot about motion in order to make your car go. In this brief post I will tell you all i have gathered about motion.   

Motion is a change in position of an object. Motion is described as displacement, direction, velocity, acceleration, and time. Like if a car is going down hill the car will pick up velocity and start going faster the weight has a lot to do with it to. If there was a lighter car going downhill it wouldn’t go as fast as a heavier car because an object that is in motion tends to stay in motion unless acted upon by an opposing force. The longer a car is going down hill the faster it will go.

Sir Isaac Newton was one of the greatest scientists ever. According to a story, Newton saw an apple fall to the ground and he thought that the same force which caused the apple to fall was also the motion of the Moon and the planets. In 1687 Newton published his three laws of motion In 1687. His three laws explained how the concepts of force and motion work.

Newtons first law I already told you was a object in motion tends to stay in motion unless acted on by an outside force.

Newton's second law of motion states that a force, acting on an object, will change its velocity by changing either its speed or its direction or both If your basketball rolls into the street and is hit by a bike, either the ball will change direction or its speed or both. It will also be the same for the bike.

The third law is probably the best known of Newton's laws. It states that for every force and action, there is an equal and opposite reaction. Like when you are shooting a gun and it kicks back because of its power.

Why is motion essential to life? Why do lighter things move slower than heavier things? Some questions for you to ponder on.

Like I said motion is very important and somethings are still difficult to process about motion because its such a complex topic. So many things to learn!