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19 Cards in this Set
- Front
- Back
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Force
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A push or a pull.
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Balanced Force
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Equal forces acting in opposite directions. Balanced forces acting on an object will not change the object's motion.
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Unbalanced Forces
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An unbalanced force is when net force is acting on an object. They can cause an object to start moving, stop moving or change the objects direction. An unbalanced force acting on an objects will change the object's motion.
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Net Force
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The overall force on an object when all the individual forces acting on an object are added together.
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Weight
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The force of gravity on an object.
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Inertia
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The tendency of an object to resist any change in its motion.
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Air Resistance
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The fluid friction experienced by objects falling through the air.
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Friction
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The amount of force makes on another when the two rub against each other.
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Sliding Friction
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When solid surfaces slide over each other.
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Static Friction
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The frictional resistance an object most overcome to move.
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Rolling Friction
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When an object rolls over another.
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Fluid Friction
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The friction that occurs when an object moves through a fluid.
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Gravity
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The force that pulls objects towards Earth.
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Free Fall
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When the only force acting on an object is gravity. Free fall accelerates an 9.8 m/s squared.
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Terminal Velocity
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The maximum velocity an object can go.
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Projectile Motion
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When the path of an object goes forward and then down.
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Law of Universal Gravitation
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The force of gravity acts between all objects in the universe.
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Newton's First Law
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An object at rest will remain at rest. An object that is moving at constant speed will continue moving at constant speed unless acted upon by an unbalanced force.
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Newton's Second Law
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The net force of an objects is equal to the product of its acceleration adn its mass.
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