Ch 6 - Acceleration

acceleration

rate of change of velocity with respect to time

what quantity is acceleration

vector quantity

SI unit of acceleration

m/s2

average acceleration formula

change in velocity/time taken

displacement

shortest distance between 2 points in a certain direction

velocity

rate of change of displacement with respect to time

distance

actual length travelled between 2 points

vector quantities

size and direction is given

scalar quantity

only size is given

e.g of scalars

speed, time, mass

e.g of vectors

displacement, velocity, acceleration

constant acceleration

average acceleration between any 2 points in a journey stays the same

area under a velocity-time graph

is the distance travelled

slope of a velocity-time graph

is the acceleration

slope formula

y2-y1/x2-x1

acceleration due to gravity

rate at which objects accelerate when they fall towards earth under the influence of gravity