P12 Newton's law of motion Flashcards
what does Newton’s first law say?
velocity of an object will only change if a resultant force acts on it
what is meant by the term intertia?
the tendency of an object to remain in a steady state
(at rest or in uniform motion)
what is the resultant force on a stationary object?
zero
what is the resultant force of an object moving at steady speed in a straight line?
zero
what will an object experience if a resultant force is added?
acceleration
change in velocity
what is newtons second law?
acceleration of an object is proportional to the resultant force and is inversely proportional to the mass of the object
what is the inertial mass of an object?
how difficult it is to change an objects velocity
what is newtons third law?
when two objects interact they exert equal and opposite forces on eachother