Vectors

displacement

a vector quantity. the change in distance is known as displacement. xf-xi= displacement brick moved 5 meters to the north

arrowhead on top of d and v means it is a vector. tells you magnitude (length of arrow) and direction (direction of arrowhead)

are these quantities scalar or vectors? temperature - scalar force- vector (when apply a force, push the object in a direction. specify direction) acceleration - derivative of velocity so vector speed- scalar mass - scalar

scalar is to ______ as vector is to __________. a) distance, distance b) distance, displacement c) displacement, displacement d)displacement, distance

b) distance, displacement Displacement includes a direction and a quantity; therefore, it is a vector quantity. Distance, on the other hand, is a scalar quantity as it only entails a quantity.

acceleration

can be rewritten as: a*t=vf-vi a*t+vi = vf vf=vi+a*t

velocity

change in DISPLACEMENT/time ex: speed of brick is 5m/s TO THE RIGHT (gives you direction)

speed

change in distance/time ex: speed of the brick is 5m/s

distance

distance. scalar version. brick moved 5 meters

force of gravity

g = 9.8 m/s^2 known as lower case g

Scalar

has magnitude (size) brick moved 5 meters

Vectors

has magnitude (size) AND direction ex: brick moved 5 meters north

velocity

it tells you which direction you are moving in (positive or negative) v= veloctiy d= displacement t = time

displacement curve equation

links position, initial velocity and acceleration

are these quantities scalar or vectors? temperature force acceleration speed mass

temperature - scalar force- vector (when apply a force, push the object in a direction. specify direction) acceleration - derivative of velocity so vector speed- scalar mass - scalar

average acceleration

this is the definition of acceleration. constant acceleration equal change in velocity divided by chage in time

what is the difference between vector and a sector?

vector is magnitude AND direction. scalar is just magnitude