with our free apps for iPhone, iPad and Android

Get StartedAlready have an account? Log In

Chapters 3 and 4
by Melissa Schultz
#
Chapters 3 and 4

##
Acceleration

###
rate of change of motion; change in velocity, m/s^2

###
a = change in velocity / change in time

###
9.8 m/s^2 in free fall

###
mass is indirectly proportionate; mass can be defined as amount of resistance to change in motion

###
F = ma is definition of acceleration; F is in Newtons and a is m/s^2

##
Newton's 2nd Law

###
Force vector = mass scalar * acceleration vector

##
Velocity

###
avg v = displacement / time

###
instantaneous velocity: at a given moment, speed as time approaches 0

###
mass is not a factor

##
Position and Displacement

###
position needs origin, not always directional

###
displacement is vector, change in position

###
can be found using vectors and x and y components

##
Words of the Day

###
Ithaca

###
Modus Operandi

###
Ne Plus Ultra

###
Panacea

###
Explore

###
Red Herring

###
Mash-up

##
1-D Motion

###
v(f) = v(0) + at

###
x = x(0) + v(0)t + 0.5at^2

###
v^2 = v(0)^2 + 2a(x(f) - x(0))

###
Examples: free fall, car moving in x or y direction only

##
Lab

###
Acceleration graphs

###
Velocity graphs

##
2-D Motion

###
same equations as for 1-D, but with velocity and position for x and y separately

###
Examples: catapault, kicking a soccer ball

5.0 stars - 1 reviews
range from 0 to 5