An object at rest stays 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.
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Example of an unbalanced force
gravity, friction, ect.
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inertia
The tendency of an object to resist a change in motion
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what is Newtons second law also known as?
law of force and acceleration
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What is Newton's second law?
Force = mass x acceleration
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what is the formula for force?
F=ma
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what is the formula for acceleration?
a=f/m
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mass
the amount of matter in an object and measure of inertia
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weight
the force of gravity on an object
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what is the formula for gravity?
mass x acceleration due to gravity (9.8 m/s2)
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What is Newton's third law?
For every action there is an equal and opposite reaction
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if equal and opposite forces act on the same object, what is the net force?
0
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Momentum
The product of an object's mass and velocity
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an object with larger momentum=
harder to stop
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formula for momentum?
mass x velocity
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law of conservation of momentum
if no net force acts on a system, then the total momentum of the system does not change
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