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### 22 Cards in this Set

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 Force An action that has an affect on another object's motion, either by pushing or pulling. Mass The amount of "stuff" or matter in an object. Velocity Speed with direction. Weight A force, which depends on the amount of pass pulling on the object or mass. Force Meter (Meter is Measure in Greek) Used to measure a force. Newton Unit used to measure the amount of force an object exerts. 100 g of mass equals 1 newton (n) Measuring Force A newton (n) is equal to the force that a 100g mass exerts on the earth. Motion A change in an objects position when compared to a reference point. Speed Distance traveled in a given amount of time. v=d/t (v=speed d=distance t=time) Acceleration A change in speed or direction. Agent The object that exerts the force. Receiver The object receiving the effect. Effect What happens. Non-contact Force One that doesn't come in contact with the object. Ex. Gravitational, Centripetal Contact Force One that does come in contact with the object. Newton's First Law (The law of Inertia) Objects at rest, remain at rest. Objects in motion, remain in motion-unless acted by an outside or unbalanced force. Newton's Second Law The change in motion (acceleration) of an object corresponds to the amount of force exerted on the object and takes place in the same direction. Newton's Third Law For every action, there is an equal but opposite reaction. (Forces come in pairs) Contact Force One that does come in contact with the object. Ex. Frictional, Buoyant Inertia (Property of Matter) the resistance of an object to change its motion. Newton's Law of Gravitation Gravitational attraction between two objects depend upon... 1)the mass of the two objects 2)the distance between the two objects Types of Forces Frictional- Carnival~bottle and book Centripetal- Ferris Wheel Magnetic- Carnival~Magnets and paper clips Gravitational- Carnival~Paper Electrical- Carnival~Socks and plastic Buoyant- Carnival~Water and jar Elastic- Carnival~Weights, Rubber band, and ruler