8-23-2016 -Welcome to class, teacher went over syllabus (attendance mandatory)
Physics Laws of Motion
1st Law of Inertia
Mass- scalier quantity (only# ie. Weight scale)
Weight vector quantity (# and a direction down b/c gravity)
Mass vs Weight w is a forc

-Through Chapter 5 important equations
a~Fnet (acceleration is directly proportional to net force)
a~1/m (acceleration is inversely proportional to mass)
m~w (mass and weight are directly proportional)
a=Fnet /m
OR
a=(mg-R)/m
w=mg
v=at
a=v/t
s=d/t
R2=X2+Y

-9-6-2016
Motion is relative to the observer
(Avg speed = total distance covered / time)
Velocity change is faster or slower or there is a change in direction
Checkpoint pg 44
1. 9 km/h
2. 2 km/h for both
DISTANCE FALLEN
d=1/2(g)t2
TIME VELOCITY
v=at
Use

-Quick Review
Describe Momentum (p)
Mass*velocity=momentum
Define impulse
Force*time
What is the relationship of impulse and momentum
Impulse = the change in momentum
State the law of conservation of momentum
In absence of an external force, momentum in a

-Quick Review/Highlights for Exam I
Ch2
Neutons 1st law formulas
Pythagorean theorem
Equilibrium: Up forces=Down forces
Speed=distance/time
Average speed = total distance / time interval
Ch3
Distance Fallen
Distance=1/2(acceleration)(time)2
Note: if in FR

-Going over Problems
Book: Conceptual Physics 12th edition by Paul G Hewit
Ch 1 pg 17
1 reasoning of nature mathematically. Forming a hypothesis and experimenting concequinces
2 most of the early truths werent generally excepted until centuries later
4 Be

-CH 5
Newtons 3rd law: when an object exerts a force on a2nd object, the 2 nd object
exerts an equal and opposite force on the 1st
Pg 77
Actions and reaction:
1. Tire pushes on the road : the road pushes on the tire
2. Earth pulls on ball (using gravity a

8-25-2016-Aerostotal & motion
Violent motion pushing and pulling outside force
Natural motion natural movement
Idea examples: Clay falls b/c it is earth and attracted to the ground. Vapor rises b/c it is air and
longs to be with air. Feathers fall slowly