ch 5&6 vocab quiz Word Scramble
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Question | Answer |
motion | an objects change in position relative to a reference point |
speed | the distance traveled divided by the time interval during which the motion occurred |
velocity | the speed of an object in a particular direction |
acceleration | the rate at which velocity changes over time |
force | a push or a pull exerted on an object in order to change the motion of the object |
newton | the SI unit for force |
net force | the combination of all of the forces acting on an object |
friction | a force that opposes motion between two surfaces that are in contact |
gravity | a force of attraction between objects that is due to their masses |
weight | a measure of the gravitational force exerted on an object |
mass | a measure of the amount of matter in an object |
terminal velocity | the constant velocity of a falling object when the force of air resistance is equal in magnitude and opposite in direction to the force of gravity |
free fall | the motion of a body when only the force of gravity is acting on the body |
projectile motion | the curved path that an object follows when thrown, launched, or otherwise projected near the surface of Earth |
inertia | the tendency of an object to resist a change in motion unless an outside force acts on the object |
momentum | a quantity defined as the product of the mass and velocity of an object |
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