physics 'work' notes

Question	Answer
Work	work=energy transferred work=force x distance j n m
stretching springs	force(f)=spring constant(k) x extension(x) f k x
stopping distance ( greater the speed the greater the force to stop)	stopping=thinking + braking m m m
Resultant force ( if an object is accelerating, there MUST be a resultant force acting on it) ( the picture with the boxes)	resultant force= mass x acceleration n m a
velocity (the speed in a direction)	change in velocity= acceleration x time
weight= force of gravity mass= quantity of matter	weight= mass x gravitational field
speed	distance(m) ----------------- time(s)
acceleration	change in velocity(m/s) -------------------------------- time taken(s)
forms of energy	thermal kinetic electric nuclear light sound elastic gravitational

Resource summary

	Created by elainemcging almost 9 years ago