P9 - Motion graphs Flashcards
gradient on distance-time graphs
-gradient = speed
Distance-time graphs lines meaning
-horizontal = stationary
-straight line that slopes = constant speed
speed formula
distance/time
speed unit
m/s
velocity
-speed in a given direction
Difference between speed and velocity
-velocity depends on direction
-same speed but diff direction = diff velocity
velocity of a circle is…
constantly changing
-speed is the same
-direction changes
displacement
distance travelled in a given direction
acceleration
change of velocity per second
acceleration equation
change in v/time
deceleration
slows down
-negative acceleration
Gradient in velocity-time graph
-acceleration
Technology to measure velocity changes
-motion sensor detects it
Velocity-time graphs - area under graph
-distance travelled
average velocity formula
total distance (area under graph)/time
