P9 Motion Flashcards
what is velocity?
speed in a direction
how do you find the speed on a d-t graph?
the gradient of the line
what does a horizontal line with no gradient mean on a d-t graph?
stationary
how do you find the acceleration on a v-t graph?
the gradient of the line
how do you find the distance/displacement on a v-t graph?
the area under the graph
what does a horizontal line mean on a v-t graph?
constant speed/velocity
what does a curve on a d-t graph mean?
increasing or decreasing speed
what is the formula for acceleration?
a = v - u / t
what is the formula for velocity?
v = s / t
what is acceleration?
the rate of change of velocity of an object per second
what is speed?
the magnitude of the change of an object’s position over time
what is decceleration?
change in velocity per second when the object is slowing down
what is displacement?
distance in a given direction
