Post on 21-Mar-2016
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What does state of motion mean?
0This is defined by its velocity – the speed with a direction. 0Thus inertia could be redefined as follows:
0Inertia: tendency of an object to resist changes in its velocity.
0So… an object at rest has ______ velocity0And in the absence of an unbalanced force, it will __________ with a
________ velocity.0An object in motion with a velocity of 2 m/s East will (in the
absence of an unbalanced force)remain in motion with a velocity of 2 m/s, East
0AND if an object is not changing its velocity, then it is said to have no __________________.0 Inertia: tendency of an object to resist accelerations.
Mass as a measure of the Amount of Inertia
0Mass is that quantity that is solely dependent upon the inertia of an object.0The tendency of an object to resist
changes in its state of motion varies with mass.
Inertia lab
0Conduct the lab and explain each in your notebook.
0Paper ring/penny0Paper under beaker0Candy inertia
0A more massive object has a greater tendency to resist changes in its state of motion.
02 brick example. How could we determine the lighter brick
0Give them an identical push. The brick that offers the least resistance is the brick with the least inertia – and therefore the brick with the least mass.
Newton’s first law
0Sometimes referred to as the law of inertia0Official: An object at rest and an object
in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.0Write your own definition…