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Newton's Laws and Examples
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Gravity
Terms in this set (21)
an object at rest will stay at rest, an object that is moving will stay moving unless disturbed by an unbalanced force.
Newton's First Law
States that acceleration depends on the object's mass and on the net force acting on the object (F=ma)
Newton's Second Law
For every action there is an equal and opposite reaction
Newton's Third Law
the tendency of an object to resist change in its motion
Inertia
a measure of how hard it is to stop a moving object
p = mv
Units: kg * m/s
Momentum
the measure of how much the force changes the momentum of an object
____ = F ∙ ∆t
Ft=m∙∆V
Units: N(s)
Impulse
forces acting on an object that combine and form a net force that is not equal to 0
Unbalanced Forces
A fireman turns on his hose & is knocked backwards
Newton's 3rd Law
It takes less force to move a DVD than a DVD player
Newton's 2nd Law
You have to push a heavy ball harder to get it to move as fast as a small one
Newton's 2nd Law
A soccer ball will not move until a player kicks it
Newton's 1st Law
If air is let out of a balloon quickly, air pushes down & balloon goes up
Newton's 3rd Law
It takes less force to push a bike than a motorcycle
Newton's 3rd Law
A bowling ball hits the pins sending the pins flying
Newton's 1st Law
Feet push down on the floor & the floor pushes up at feet as you walk
Newton's 3rd Law
12 lb bowling ball goes faster down the lane than a 15 lb bowling ball
Newton's 2nd Law
In a plane taking off you feel pushed back into your seat
Newton's 1st Law
Push a large box & a small box with the same force, the small box will go faster
Newton's 2nd Law
seatbelt stops you from hitting the windshield if you hit the brakes quickly
Newton's 1st Law
A boy can throw a football farther than his friend because he uses more force
Newton's 2nd Law
Someone crashes their bike into a rock & is thrown over it to the ground
Newton's 1st Law
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