kinematics (physics ch 1) - reyes

one-dimensional

straight line (left, right, up, down, NESW)

kinematics

the study of motion using words, numbers, graphs, and equations

scalar

a quantity that has only a magnitude (number or value)

vector

a quantity that has both a magnitude and a direction

distance

a scalar quantity that refers to how much ground an object has covered during its motion

displacement

a vector quantity that refers to how far your ending point is from your starting point

speed is

the ratio of distance and time

speed can be negative (t/f)

false

avg speed =

distance traveled / time

velocity is the

ratio of displacement and time

velocity be negative (t/f)

true

avg velocity =

displacement / time

s = d/t

speed

vavg = △x/t

velocity