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| The distance an object travels per unit of time and the direction in which it moves. |
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| The rate of change of velocity |
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Forces on an object that are equal in size and opposite in direction. |
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| The sum of two or more forces- the overall force. |
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| The tendency of an object to resist change in its motion. |
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| An object moving at a constant velocity keeps moving at that velocity unless acted upon by an unbalanced force. |
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| Real-life example of Newton's First Law |
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Definition
| The use of seat belts to reduce injury. |
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Term
| Changes of speed or direction result in this. |
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| Used to determine an object's position |
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| Walking with a constant speed away from the sensor. |
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| Line that is linear and positive on a position-time graph. |
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| Horizontal line on a position-time graph |
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| No movement (no change in position). |
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The acceleration of an object is in the same direction as the net force on the object. |
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The force that opposes the sliding motion of two surfaces that are touching each other. |
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The dips and bumps on the surface of objects smooth or rough which cause friction. |
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The force which must be overcome before an object can move. |
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| Results when two surfaces are moving past each other. Also called kinetic. |
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| A friction-like force which opposes falling objects. |
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| Depends on speed, size and shape of an object |
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The force of air resistance is equal to the force of gravity of a falling object. |
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Definition
| The attractive force between any two objects |
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| Depends on the distance apart and mass of two objects |
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| The gravitational force exerted on an object |
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| Newton's Third Law of Motion |
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Definition
| For every action, there is an equal but opposite reaction |
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Term
| An example of Newton's Third Law |
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Definition
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| An example of Newton's Second Law |
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Definition
It takes 50N of force to accelerate a 1000Kg car to .05m/s2 |
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Term
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Definition
A change in an object's position determined by using reference point |
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Definition
| The speed and direction of an object |
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| Newton's First Law of Motion |
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Definition
| An object not being subjected by a force will continue to move at a constant speed in a straight line or stay at rest. |
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| Having a net force of zero |
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| Everything on or around the Earth is pulled towards Earth's center. |
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| The cause of an acceleration |
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| Distance per unit of time |
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| The location of an object as measured from its starting point. |
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| A measurement of how far an object has moved. |
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| Describes an object which is moving without accelerating. Forces are balanced. |
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Definition
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Definition
| The sum of all forces acting on an object. |
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| The property of an object to resist change in its motion. |
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| A push or a pull. Measured in Newtons. |
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| The rate at which velocity changes with time. |
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Definition
| A resistive force which opposes motion. |
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Definition
| The amount of matter in an object. Measured in grams or Kilograms. |
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| The force upon an object due to gravity (mass X gravity). Measured in Newtons |
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Definition
| The acceleration of an object is directly proportional to the net force acting on the object and inversely proportional to the object's mass. |
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| Newton's Third Law of Motion |
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Definition
| Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first. |
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Definition
| The speed at which a falling object has no net force because the gravitational force pulling down is equal to but opposite the force of air resistance pushing up on the object. |
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