Download Laws of Motion Notes

Laws of Motion and Energy Notes
Sir Isaac Newton
 1. Described 3 laws that relate forces to motion
 2. _____________-a push or a pull, all forces have size and direction
Vocabulary
 1. _____________- a force that opposes motion between 2 objects
that are touching
 2. Inertia-tendency of all objects to stay at _________ or in
_________
 3. _____________- the amount of matter an object is made of
Newtown’s 1st Law of Motion
“Law of Inertia”
 An object at _____________remains at ___________ and an
object in _____________ remains in _____________ at constant
speed and in a straight line unless acted on by an unbalanced force
Examples of Newton’s 1st Law of Motion
 1. Car suddenly ___________ and you strain against the
__________
 2. Car turns ___________ and you appear to slide to the ________
 3. The difficulty of pushing a car that won’t __________
Newton’s Second Law of Motion
 The _______________ of an object depends on the _______ of the
object and the amount of the ___________ applied
 1. Force = mass x acceleration F=m x a
 2. Force- a ____________ or ___________, all forces have size and
direction
 3. _____________- the amount of _____________ an object is
made of
 4. ____________________-the rate at which velocity changes; and
object accelerates if it speed changes, if it’s direction changes and if
both speed and direction changes
Examples of Newton’s 2nd Law
 1. Hitting a softball, the harder the hit, the faster the ball goes
 2. Football players and their positions
 3. Loaded versus an unloaded truck
Newton’s Third Law of Motion
 1. For every ____________, there is an ___________and opposite
___________
 2. Action and Reaction
Examples of Newton’s 3rd Law
 1. 2 cars hit head on
 2. Jumping out of a boat onto a dock
 3. Astronauts in space