Physics -Newton's Second Law

What is is about?

Acceleration, Force, Mass

Force & Acceleration Relationship

Direct; force goes up so does acc, force goes down so does acc

Mass & Acceleration Relationship

Inverse; Mass goes up, acc goes down; mass goes down, acc goes up

Newton’s 2nd Law

Force has a direct relationship with acceleration.  Mass has an inverse relationship with acceleration.  

Equations

F/M=A ; F=m*a

Does it take more to push or pull an object?

Depends on the situation; however, pushing takes more work because when you push an object you push an object towards the ground more which causes more friction.

Equation friction force

F=uN (Friction Force=Coefficient of friction * Normal Force

Force

Push or pull

Unbalanced Force

a force that has no equal force in the opposite reaction

Balanced Force

A force that has an equal and opposite force

Socrates

philosopher that believed objects need force to continue moving

Galileo

Scientist that first hypothesized that if friction were absent, a ball would roll down an incline and keep moving forever

Friction

A force resulting from surfaces sliding against eachother

Air Resistance

If you drop a paper, this force would cause it to hit the ground