Motion

14 cards·by faithochs

frame of reference

a system of objects that are not moving with respect of one another

relative motion

movement in relation to a frame of reference

distance

the length of the path between two points

vector

a quantity that has a direction associated with it

resultant vector

the vector sum of two or more vector

speed

is the ratio of the distance an object moves to the amount of time the object moves.

average speed

is the total distance travled, d, divided by the time, t it takes to travel that distance this can be written as an equation

Instantaneous speed

v, is the rate at which an object is moving at a given moment in time

Velocity

is the description of both speed and direction of motion. Velocity is a vecctor

acceleration

can be described as changes in speed, changes in direction, or changes in both.

free fall

movement of an object toward earth solely because of gravity

constant acceleration

steady change of velocity

linear graph

a graph that uses lines to represent data

nonlinear graph

curve that connects data points