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19 Cards in this Set
- Front
- Back
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force
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A push or pull exerted on an object
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contact force
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A force that is exerted only when two objects are touching.
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noncontact force
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a force exerted when objects are not touching
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balanced force
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Equal forces acting on an object in opposite directions
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unbalanced force
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two or more forces that are not equal and opposite of one another; can cause change in motion
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gravity
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A force of attraction between objects that is due to their masses.
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mass
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A measure of the amount of matter in an object
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weight
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A measure of the gravitational force exerted on an object.
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friction
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A force that opposes motion between two surfaces that are in contact
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net force
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The combination of all forces acting on an object
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inertia
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Resistance of an object to a change in its motion
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circular motion
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any motion in which an object is moving along a curved path
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centripetal force
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A force that causes an object to move in a circle
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force pair
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The action and reaction pair of forces that occur in an interaction.
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momentum
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Mass x Velocity A quantity defined as the product of the mass and velocity of an object
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law of conservation of momentum
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Matter is not created nor destroyed in any chemical or physical change
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Newton's 1st Law of Motion
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An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force
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Newton's 2nd Law of Motion
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The acceleration of an object depends on the mass of the object and the amount of force applied.
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Newton's 3rd Law of Motion
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For every action there is an equal and opposite reaction
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