3.1 Motion Flashcards
How is average velocity calculated?
v=d/t (velocity=displacement/time)
whats the difference between distance and displacement
distance has no direction whereas displacement does
how can you determine velocity from a displacement-time graph
the gradient
is velocity a vector or a scalar quantity
Vector
whats the difference between speed and velocity
speed only has magnitude whereas velocity also has a direction
define acceleration
the rate of change of velocity
define velocity
the rate of change of displacement
what are the units for velocity
ms-1
what are the units for acceleration
ms-2
how can acceleration be calculated
a=v/t (acceleration= velocity/ time)
is acceleration a scalar or vector quantity
vector
how can acceleration be determined from a velocity-time graph
the gradient
how can displacement be determined from a velocity-time graph
the area under the line
what kind of motion can suvat equations be used for
vector with uniform acceleration
state the 4 suvat equations
v=u+at
s=1/2(u+v)t
s=ut+1/2at^2
v^2=u^2+2as
