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. 

Newtons Laws and Mechanical motions

I learned a lot about Newtons laws.
I learned that Newtons first law of motion says "An object in motion stays in  motion unless acted upon another object

I also learned that the second law of motion says "an object will accelerate in the direction of the net force, like what we did in class this week

The next thing i learned is about newtons 3rd law that says for every action, there is an equal and opposite reaction.

All of these Laws are used in the daily lives of every single person in the world.



Proving Newton's Second Law

Question: How does mass and acceleration relate to force

 



Materials used:

• wood track
• spring scale
• weights
• car

Hypothesis: The larger the mass on the car the more force it takes to move it

Steps:
1) Get supplies, stop watch, weights, spring scale, car, and wood track
2) Go over to the station you will be preforming experiment in
3) Put the wood track flat then put a weight in the car, then pull the car with a spring scale to record its force
4)Preform experiment when track and everything is set up
5) After that raise the wood track, angling track at desired angle
6)Record data throughout experiment
7)get graph paper
8) on the X-axis put force (N) on Y-axis put acceleration
9) Plot data, use a line graph
10) Get another piece of graph paper
11) On X- axis put acceleration (m/s2) on the Y-axis put mass (G)
12)Using a line graph plot the data