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Whats speed
how quickly an object can move from one place to anothe
How do we calculate speed
speed = distance/time
what is displacement
distance in a given direction/ shortest distance between two points in a given direction and independent of the pathway taken
what is velocity
velocity is speed ina given direction
How does one calculate velocity
change in displacement / time taken
what does slope tell you in a distance time graph
tells you the speed !
what is the acceleration of an object
Acceleration is the change in velcoity in one second , accelerate in science means to speed up or slow down
how does one calculate acceleration
change in velocity / time taken
whats the unit of acceleration
ms^-2 or m/s/s
what does the slope in a velocity time graph tell is
the acceleration
how does gravity effect acceleration
on earth, a falling bodyt qill accelerate at a rate of 10 ms^-2 every second, in reality a falling body might not accelerate at thisrate due to air resistance. (eg stone will fall faster than a feather unless dropped in a vacuum.
