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19 Cards in this Set
- Front
- Back
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What is FORCE
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A push or a pull
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What is NET FORCE?
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The sum of all forces on an object.
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What are unbalanced forces?
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Unbalanced forces change the motion of an object.
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What are balanced forces?
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Balanced forces do not change the motion of an object.
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What is Inertia?
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Inertia is the tendency of an object to resist changes in motion.
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What is Mass?
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Mass is the amount of matter in an object.
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What is a newton?
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A newton is the unit of measure for force.
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What is friction?
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the force that one surface exerts on another when they rub against each other
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What is gravity?
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Gravity is an attractive force that pulls all objects together
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What is free fall?
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the motion of a falling object when gravity is the only force acting on the object
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What is weight?
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Weight is the force of gravity on an object
(mass x 9.8 m/s/s) |
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What is air resistance?
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A type of fluid friction that acts on objects as they fall through the air. This is an upward force.
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What is a projectile?
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Anything that is thrown
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What is Newton's First Law of Motion?
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An object at rest will remain at rest;an object in motion will remain in motion unless acted upon by an outside,unbalanced force
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What is Newton's Second Law of Motion?
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Force = Mass x Acceleration
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What is momentum?
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Momentum is the product of mass and velocity
(How much force does it take to stop something) |
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What is the law of conservation of momentum?
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states that the total momentum is the same before and after an event (as long as there are no other forces at work)
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What is a satellite?
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A satellite is any object orbiting another in space
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What is centripetal force?
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Centripetal force is a center seeking force (circular motion)
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