1.2 - kinematics Flashcards
(15 cards)
Speed?
The rate of change of distance.
Mean speed equation?
Mean speed = total distance travelled / total time taken (D=ST)
Displacement?
The displacement of a point B from a point A is the shortest distance from A to B, together with the direction.
Velocity?
The rate of change of displacement.
Acceleration?
The rate of change of velocity.
Mean acceleration equation?
Mean acceleration= change in velocity/ time taken
The gradient of a displacement-time graph gives the ??? of the body.
Velocity.
The gradient of a velocity-time graph gives the ??? of the body.
Acceleration.
Area under a velocity time graph?
Displacement.
If there is no air resistance,the body will fall with a?
Constant acceleration.
g?
9.81ms^-2
Horizontal and vertical motions are?
Independent of each other.
The four equations for uniformly accelerated motion can be applied to the ??? motion of a projectile.
Vertical.
During the motion of a projectile, what is the vertical component of velocity affected by?
Gravity.
During the motion of a projectile, what remains constant?
The horizontal component of velocity.
