[physics] kinematics Flashcards
what is distance
the total length covered by a moving object regardless of the direction of motion
si unit for distance
metre (m)
what is displacement
the distance measured in a straight line from a fixed reference point
si unit for displacement
metre (m)
what is speed
the distance travelled per unit time
si unit for speed
metre per second (ms-1)
what is velocity
the rate of change in displacement
si unit for velocity
metre per second (ms-1)
what is average speed
total distance travelled per unit time
si unit of average speed
metre per second (ms-1)
what is instantaneous speed
the speed of an object at a particular instant
si unit for instantaneous speed
metre per second (ms-1)
what is acceleration
the rate of change of velocity
si unit for acceleration
metre per second per second (ms-2)
