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16 Cards in this Set
- Front
- Back
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Acceleration
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Rate at which velocity changes over time
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Air resistance
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Force that opposes the motion of objects through air
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Terminal velocity
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Falling at a constant velocity since air resistance equal to downward gravity force
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Free fall
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Gravity is pulling object down and no other forces are acting on it;motion of a body when only the force of gravity is acting on the body
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Weight
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Measure of gravitational force
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Orbiting
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An object travels around another object in space
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Spacecraft orbiting
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Moving forward but also in free fall toward Earth
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Centripetal force
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Unbalanced force that causes objects to move in a circular path due to gravity
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Projectile motion
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Curved path an object follows when it is thrown or propelled near the surface of the earth
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Horizontal motion
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Motion ll(parallel)to the ground
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Vertical motion
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Motion that is perpendicular to the ground
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Inertia
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Tendency of all objects to resist any change in motion
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Momentum
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Depends on the objects mass and velocity
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Newton's Laws of Motion
1s Law |
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
(Law of Inertia) |
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Newton's Laws of Motion
2nd Law |
Acceleration of an object depends on the mass of the object and the amount of force applied
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Newton's Laws of Motion
3rd Law |
Whenever one object exerts a force on a 2nd object, the 2nd object exerts an equal and opposite force on the first
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