Motion along a straight line (2) by wenda.pptx

motion along a strighat line is one of physics course

1. Motion along a straight line motion

2. Change of place or position All of the change of the world as result of motion Example:- day and night-earth motion on its axis :- seasons- earth motion on its orbits :- wind – motion of air Motion expermental physics by wenda 2

3. Uniform rectilinear motion Speed It’s the rate of motion, capacity for rapid motion Speed related to distance and time Speed vs distance :- the speed doubles at equal interval of time the distance also double v~s means directly proportional Speed vs time:-if the speed doubles the time taken to will be halved v~ Means inversely proportional   expermental physics by wenda 3

4. The si unit of speed is meter per second (m/sec). Non si unit of speed is km/ hr,mi / hr …etc . Speed has no direction it’s a scalar quantity.   expermental physics by wenda 4