Effects of Forces Change shape
Effects of Forces Change shape
Change of Shape
Force is directly proportional to extension
Force is directly proportional to extension When force doubles, the extension doubles F α x F = constant x Hooke’s Law
Force is directly proportional to extension = x1 x2 m1 m2 = x1 x2
What if we put more weights than we did? Elastic Limit
Effects of Forces Change the state of motion Move from rest Speed up Slow down Stop Change its direction
Balanced forces
Balanced Forces The book stays still!
The airplane moves forwards at constant speed! Balanced Forces The airplane moves forwards at constant speed!
The car moves at constant speed! Balanced Forces Thrust Drag Friction The car moves at constant speed!
Unbalanced Forces The car moves from rest. The car speeds up.
Unbalanced Forces The car slows down to stop. The car slows down.