Motion Flashcards
Scalar meaning
A quantity with a magnitude only
Vector meaning
A quantity with a magnitude and direction
Acceleration unit
M/s2
Average speed equation
Average speed = distance/time
Velocity equation
Velocity = displacement/time
Distance time graph
/ = constant speed
— = stationary
Curve = accelerating
Gradient equation
Gradient = rise/run (y/x)
Instantaneous speed = gradient of a distance time graph
Acceleration meaning
The acceleration of an object is a measure of how quickly its velocity changes in a period of time.
Acceleration equation
A = v-u/t
Acceleration = final velocity - initial velocity/time
Velocity-time graphs
— (on zero) = stationary
— (not on zero) = constant velocity
/ = constant acceleration
Curve = increasing acceleration
Area of bottom of graph equation
Area of the bottom of the graph = displacement/distance travelled
