Motion is the phenomenon in which an object changes its position.
Newton's first law states that I will stay here until another force affects me.
It also states that I will stay in motion (keep playing) until an unbalanced force acts on me.
An unbalance force could be mom scolding me.
Newton's first law is also known as the law of inertia, inertia describes how much an object like me will resist change to the motion of my mom.
Things become harder to accelerate when they have larger mass, mass is how much matter an object has this is why its easier to move a soccer ball than a goal.
Acceleration is the increase or rate of the speed of something like a soccer ball.
Newton's second law states that when a force is applied to an action it causes the object to accelerate.
Eventually no matter how hard I kick this soccer ball it will stop because of the friction on the ground and the air.
When I kick the ball it creates speed and velocity.
Newton's second law also has many other forms to measure it like speed and velocity
Speed is the just the rate at which something is traveling, velocity is very similar to this but it includes the direction the object is going.
Similar to a reference point a frame of reference is anything you see while in motion, so when I run down the field a frame of reference could be the people watching the game.
To do this we can find the distance the ball traveled and the time it took to stop.
The formula for this is speed = distance over time, to make this easier we can use a reference point such as the goal or a nearby tree.
But what if you wanted to calculate the speed of the soccer ball.
Possible directions could be North, East, South, and West.
Displacement is another way to measure only the distance and direction.
Since my head is applying force to the ball the ball applies the same amount of force back, this is why sometimes after I hit the ball my head hurts.
This is shown when I use my head to hit the ball.
Finally newton's third law states that for every action there is and equal and opposite reaction.