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The combination of all the forces acting on an object. |
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Two or more forces whose effects cancel each other out AND do not change the motion of the object. |
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Two or more forces acting on an object that DO NOT CANCLE EACH OTHER OUT – and cause the object to accelerate (+)/(-)/Change directions. |
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NEWTON’S 1St LAW (Part 1) |
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Definition
If the net force acting on an object is zero, the object will remain at rest. |
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NEWTON'S 2ND LAW OF MOTION |
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The acceleration of an objects equals the net force divided by the mass - and is in the direction of the net force. |
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NEWTON’S 1ST LAW (Part 2) |
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If the object is already moving, it will continue to move in a straight line with a constant speed. |
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The attraction between the atoms of two surfaces that are touching and are not moving. |
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Forces always act in EQUAL but OPPOSITE pairs. (or equal but opposite reactions). |
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The friction between two surfaces that are sliding past each other and act in the direction OPPOSITE to the motion. |
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The force that acts to resist movement between two surfaces that are rolling (one or both surfaces may be round/roll) |
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The force that brings nearly everything to a stop and opposes sliding between two surfaces that are touching. |
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A force of attraction between any tow objects that have mass. The closer the objects the more attraction. The greater the mass the greater the attraction. |
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Mass(gravity) Measured in NEWTONS! Measured with a spring scale. |
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The net force cause by an object moving in a circular motion. |
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A form of friction that acts to slow down any object moving in the air. |
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The point in an object that moves as if the entire object’s mass were concentrated at that point. |
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The tendency of an object to resist a change in its motion. |
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The measure of the amount of matter in an object. Measured in grams. Measured on a tri-beam scale. |
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