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Newton's 3 Laws

Laws of Motion

QuestionAnswer
Newton's 1st Law of Motion An object in motion will stay in motion, and an object at rest will stay at rest, unless some force causes it to change.
Newton's 2nd Law of Motion The acceleration of an object depends on the mass of the object (how heavy it is) and the amount of force pushing the object.
Newton's 3rd Law of Motion For every action, there is an equal and opposite reaction. The reaction is equal in force and opposite in direction.
force a push or a pull, usually measured in Newtons
mass the amount of matter inside an object, measured in grams or kilograms
friction a force caused when two things rub against one another
inertia the tendency of an object to resist change
acceleration a change in the speed of an object
True or False? All objects have inertia, whether they are moving or standing still. TRUE. Inertia depends on mass, and an object's mass remains the same whether it's moving or standing still.
True or False? The amount of inertia an object has depends on its mass. TRUE. The greater the object's mass, the greater its inertia.
True or False? Fast moving objects have more inertia than slow moving objects. FALSE. Inertia depends on mass, not speed.
According to Newton's 2nd Law, what is the formula for calculating force? F=ma
In the formula F=ma, what do the letters F, m and a stand for? F=ma Force = mass x acceleration
Created by: MrArchung
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