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16 Cards in this Set
- Front
- Back
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The pushing or pulling action of one object upon another is called a ____.
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force
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___ can change the shape or motion of an object.
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Forces
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_____ is the resistance caused by moving one object against another.
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Friction
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____ is the attraction two objects have for each other.
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Gravity
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The __ __ ___ ___ that a particle in the universe will attract another particle with a force known as gravity.
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Law of Universal Gravitation
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The measurement of gravity is _____.
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weight
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A _____ is the metric unit of force and weight.
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newton
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The law of gravitation states the ___ and ___ are two factors that determine the strength of gravity.
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mass and distance
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The force of attraction is ____ related to the mass of the objects; that is, the heavier the object, the greater the gravity.
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directly related
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The force of attraction is ____ related to the square of the distance between the two objects.
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inversely directed
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Matter is ____, that is, it resists change in motion.
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inert
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______ is the tendency of matter to stay at rest if at rest, or to continue moving if in motion.
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Inertia
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Newton's first law of motion states:
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The velocity of an object is not changed unless it is acted upon by an outside force.
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Newton's second law of motion states that the acceleration of an object is ____ related to the strength of the force and _______ related to the object's mass.
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directly related
indirectly related |
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The formula of acceleration:
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Acceleration = force/mass
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Newton's third law:
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For every action there is an equal and opposite reaction.
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