Chapter 9 Flashcards
(18 cards)
no change in displacement over time
the object is stationary
displacement increases at a constant rate over time
the object is moving with constant velocity
displacement is increasing at a greater rate as time increases
the velocity is increasing and the object is accelerating
velocity on a displacement time graph
gradient represents velocity
if it is a straight line, velocity is constant
average velocity
displacement from the starting point/time taken
average speed
total distance travelled/time taken
velocity is 0
the object is stationary
velocity is unchanging
the object is moving with constant velocity
velocity is increasing at a constant rate
the object is moving with constant acceleration
acceleration on a velocity-time graph
the gradient of the line represents the acceleration if the line is straight the acceleration constant. is the rate of change in velocity
distance/displacement on a velocity-time graph
the area between the axis and the graph itself. under the graph. velocity x time
suvat
displacement initial velocity final velocity acceleration time
v=
u+at
s=
0.5(u+v)t
ut+0.5at^2
vt+0.5at^2
v^2=
u^2+2as
gravity
cause objects to accelerate towards the earth. has a downward acceleration of 9.8 m/s^2
Acceleration
Is the rate of change of velocity
Gradient represents acceleration on a velocity time graph and if it is a straight line then it is constant
Area under a velocity time graph
Velocity x time
Represents the distance travelled or displacement
