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Force Quiz Review

Physics

TermDefinition
Weight Formula W=mg
Acceleration Formula Xf-Xi/t
Force Formula F=ma
Balanced Forces Fnet=0, no acceleration
Unbalanced forces Fnet is not = to 0, acceleration
Inertia The tendency of an object to resist change
Acceleration Change in speed, direction, or both (the rate velocity changes with time)
Mass Amount of matter in an objector the measure of inertia in an object, not dependant on location
Weight Measure of gravitational attraction or force or gravity pulling one object toward the center of another object (function of gravity, dependant on location.
Gravity The force that pulls on objects and causes acceleration if the objects are not balanced by an opposing force.
Friction A force that opposes motion between two surfaces
Sliding Friction Opposes motion once the object is moving.
Static Friction Opposes the start of motion, greater than sliding friction
Air resistance Friction between a surface and air during motion.
New Force The sum of all forces
Newtons unit for force and weight and is equal to 1 kg*m/s^2
Newton's 1st Law "Law of Inertia" An object at rest will remain at rest until a force is acted on it. Same goes for moving objects.
Newton's 1st Law Ex. Seatbelt stopping you from hitting the windshield when breaks go off or an apple falling of a tray when you stop
Newton's 2nd Law States, F=ma. Force is equal to the change in momentum per change in time. For constant mass, force equals mass times acceleration
Newton's 2nd Law Ex. Bowling, when you increase the mass of your ball from your normal one you will need to put more force on it to roll at the same speed as the normal one.
Newton's 3rd Law For every action there is an equal or opposite reaction (action/reaction)
2 things that determine the amount of gravity mass and distance
Created by: mep10836
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