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Newton's First Law of Inertia
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Gravity
Terms in this set (10)
Force
A force is a push or a pull, and is a vector quantity. The metric unit of force is the Newton (N), the English unit of force is the pound (lb).
Net Force
The combination of all the forces acting on an object. A net force on an object changes its motion.
Normal (Support) Force
The upward force that balances the weight of an object on a surface.
Friction
The force that acts between materials that touch as they move past each other.
Inertia
The property of a body to resist changes to its state of motion.
Newton's First Law
A body at rest stays at rest, or of uniform speed in a straight line, unless acted on by a nonzero net force. (Sometimes called the Law of Inertia) (Things tend to keep doing what they're already doing unless a force acts on them!)
Equilibrium
A state where the sum of the forces acting on an object is equal to zero.
Kilograms
The metric measure of mass. (1000 grams = 1 kilogram)
Mass
The quantity of matter in an object. The measure of the inertia, or "laziness" an object to a change in its state of motion.
Weight
The force of gravity on an object.
Calculate weight using the formula: w = m∙g
(weight = mass x acceleration due to gravity)
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