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Definition
A push or a pull on an object. |
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Definition
The overall force on an object when all the individual forces acting on it are added together.
(if the net force is not zero - the object will move) |
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Definition
| A non-zero net force which changes an object's motion. |
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Term
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Definition
Equal forces acting on an object in opposite directions.
(balanced force = no movement) |
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Definition
A unit of measure that equals the force required to accelerate 1 kg of mass at 1 m/s2.
(kg m/s2) |
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Definition
A measure of the force of gravity acting on an object.
W = M x A (due to gravity) |
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Definition
The tendency of an object to resist a change in motion. |
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Term
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Definition
The amount of matter in an object. |
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Term
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Definition
| An object at rest will remain at rest and an object in motion will stay in motion unless acted upon by an unbalanced force. |
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Definition
The product of an object's mass and velocity.
p = m v |
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Definition
| The force that two surfaces exert on each other when they rub against each other. |
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Definition
| The motion of a falling object when the only force acting on it is gravity. |
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Definition
An object that is thrown. |
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Term
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Definition
The fluid friction experienced by objects falling through the air.
(an upward force) |
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Term
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Definition
| Friction that occurs as an object moves through a fluid (air or water). |
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Definition
| Friction between objects that are not moving. |
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Definition
| Friction that occurs when one solid surface slides over another. |
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Definition
| Friction that occurs when an object rolls over a surface. |
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Term
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Definition
| The force that pulls objects towards each other. |
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Term
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Definition
| Any object that orbits around another object in space. |
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Term
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Definition
The maximum velocity a falling object can achieve.
When air resistance equals the force of gravity, the object continues to fall but eventually keeps a constant velocity. |
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Term
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Definition
| A force that causes an object to move in a circle. |
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Term
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Definition
An object's acceleration depends on its mass and on the net force acting on it.
F = MA |
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Term
24. Law of Universal Gravitation |
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Definition
The force of gravity acts between all objects in the universe.
Any two objects in the universe attract each other. |
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Term
25. Law of Conservation of Momentum |
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Definition
| The total momentum of any group of objects remains the same unless outside forces act on the object (such as friction). |
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Term
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Definition
| For every action there is an equal but opposite reaction. |
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