# Shared Flashcard Set

## Details

Chp. 13
Chp. 13
14
Science
05/05/2009

Term
 Gravity
Definition
 a force of attraction between objects that is due to their masses
Term
 weight
Definition
 a measure of gravitational force exerted on an object; its value can change with the location of the object in the universe
Term
 Mass
Definition
 a measure of the amount of matter in an object
Term
 Terminal Velocity
Definition
 the constant velocity of a falling object when the force of air resistenceis equal in magnitude and opposite in diriction to the force of gravity
Term
 free fall
Definition
 the motion of a body when only the force of gravity is acting on the body
Term
 Projectile Motion
Definition
 the curved path that an object follows when thrown, launched, or otherwise projected near the surface of Earth
Term
 Inertia
Definition
 the tendency of an object to resist being moved or, if the object is moving, to resist a change in speed or direction until an outside force acts on the object
Term
 Law of Universal Gravitation
Definition
 states that all objects in the universe attract each other through gravitational force
Term
 Newton's 1st Law of Motion
Definition
 states that the motion of an object will change only if unbalanced forces act on the object
Term
 Newton's 2nd Law of Motion
Definition
 states that the acceleration of an object depends on the objects mass and on the force exerted on the object
Term
 Newton's 3rd Law of Motion
Definition
 states that whenever one object exerts a force on a second object the second object exerts an equal and opposite force on the first object
Term
 Falling objects accelerate towards the Earth at a rate of...
Definition
 9.8 m/s
Term
 All matter has
Definition
 mass
Term
 ________ is a result of mass
Definition
 gravity
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