motion test Flashcards
average acceleration=
final speed-starting speed divided by time
how do you find velocity from displacement graph
gradient
how do you find acceleration from velocity graph
gradient
how do you find displacement from velocity graph
area
how do you find velocity from acceleration graph
area
why does area provide displacement and velocity in their respective graphs
velocity=displacement divided by time and acceleration=final velocity-starting velocity divided by time
why does gradient provide velocity in displacement graph
it displays the rate at which displacement changes over time which relates to velocity = displacement divided by time
why does gradient provide acceleration in velocity graph
The gradient shows the rate at which velocity increases over time which relates to final velocity-starting velocity divided by time=acceleration
what does an exponential mean on a distance/displacement graph
an exponential that has its end facing down or right is slowing down while an exponential that has its end facing up is speeding up
difference between scalar and vector quantities
scalar provides magnitude only eg speed distance time length while vector provides magnitude and direction eg displacement, velocity acceleration.
what are vector quantities represented by
arrows which have length determined by magnitude and direction determining the way it is pointing
velocity formula
v=s divided by t, s is displacement
speed formula
v=s divided by t, s is distance
symbol for distance/displacement
s
symbol for speed/ velocity
v
