Newton's Laws Assessment

1. What are the relationships between forces and motion? 
2. What are the variables that affect motion and force? 
3. How does Newton’s three laws describe the motion of a moving 
object? 
4. How does gravity impact objects?

1) the relationship between forces and motion is simple. with out a force acting on the object the object would not be able to change its speed and direction. The best way to explain the relationship is Issac newtons 3rd law. Newtons 3rd law states for every reaction there is an equal and opposite reaction. For example, when a rocket ship takes off all the force is being hurled down towards the ground causing the rocket ship to be thrown into space. 

2) There are a lot of variables that affect motion. Such as, Gravity- the gravity is pulling everything down towards the earth. And friction- when driving a car there is friction between the air and the ground acting on the car. Both Gravity and Friction play a role in affecting an objects motion. 

3) Newtons three laws describe the motion of a moving object in many ways. when a soccer ball is kicked by a player the force of the kick sends the ball in the direction of the kick (newtons first law). when an object is at rest will stay at rest until acted upon by an unbalanced force. newtons second law applied to destroying a wall. when people destroy walls they either use explosives or a wrecking ball because the walls mass is huge and the bigger the mass the greater the force you will need to break it. the third law can be showed by a rocket the thrust of the rocket ship towards the ground will move the rocket in the other directions towards space. 

4) gravity greatly impacts objects. One thing gravity affects is our weight. for example, on the moon you would weigh less because the moon has less of a gravitational pull. but on the earth there is a greater pull because of the earths iron core causing you to weigh more on earth. the moons gravitational pull causes us to have waves on earth.