Newton's Laws
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Last updated 10:01 PM on 1/30/23
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13 Terms
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What is Newton's First Law (when an object is stationary)
if the resultant force acting on an object is zero and the object is stationary it will remain stationary
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What is Newton's First Law (when an object is moving)
if the resultant force acting on an object is zero and the object is moving the object continues to move at the same velocity
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When a vehichle travels at a steady speed what happens
the resistive forces balance the driving force
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When does velocity of an object change
if a resultant force is acting on the object
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What is inertia
the tendency of objects to continue in their state of rest or uniform motion (to continue what they're doing)
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What is Newton's Second Law
acceleration of an object is proportional to the resultant force acting on that object but inversely proportional to the objects mass
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What equation is used in Newton's Second Law
resultant force \= mass x acceleration (F \= ma)
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What is force measured in
newtons (N)
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What is mass measured in
kilograms (kg)
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What is acceleration measured in
metres per second squared (m/s^2)
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What is inertial mass
a measure of how difficult it is to change the velocity of an object
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What is inertial mass defined as
the ratio of force over acceleration
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What is Newton's Third Law
When two objects interact the forces they exert on each other are equal and opposite
