Kinematics Flashcards
What is speed
speed is the rate of change of distance or how fast an object moves
is speed a scalar or a vector quantity and why
speed is a scalar quantity as it doesn’t have a direction
what is the speed si unit
m/s
what is the formula for speed
speed= distance/time (s=d/t)
what is velocity
it is the rate of change of displacement
is velocity a scalar or a vector quantity and why
it is a vector quantity as velocity has a direction
what is the velocity si unit
m/s
what is the velocity formula
velocity=displacement/time (v=s/d)
what is acceleration
it is the rate of change of velocity
how does acceleration occur
it occurs when there is a change in speed or in direction
what is the formula for acceleration
acceleration= change in velocity/time (a=v-u/t)
what is deceleration or retardation
it is the rate of change in velocity when an object slows down.
what is uniform acceleration or constant acceleration
it is when speed increases uniformly in equal interval of time
what is distance and is it a scalar or vector quantity and what is its si unit
distance is the total length covered by an object it is a scalar quantity and its si unit is m
what is displacement and is it a scalar or vector quantity and what is its si unit
displacement is the shortest and the straightest length from the initial position to the final position in a given direction it is a vector quantity and its si unit is m
