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| statement about what happens in nature that seems to be true all the time; does not explain why or how something happens |
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state the problem
research and gather information
Form a hypothesis
test the hypothesis
analyze the data
draw concusions |
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| exact, agreed-upon quantity used for comparison |
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| international system of units universally acepted version of the metric system that is based on the multiples of ten |
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| explaination of things or events that is based on knowledge gained from many obsevations and investigations |
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| the application of science to help people |
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amt. of space occupied by an object
L x W x H= VOLUME |
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| factor that can cause a change in the results of an experiment |
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| factor that can cause a change in the results of an experiment |
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| educated guess using what you know and what you observe |
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| factor that as it changes affects the measure of another variable |
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| factor that changes as a result in an experiment |
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| standard used for comaprison in an experiment |
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| In an experiment, a varible that does not change when other varibles change |
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| occurs when a scientists expectation change how the results of an experiment are viewed |
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| mass per unit volume of a material |
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| a visual display of data that can provide a quick way to communicate alot of information and allow scientists to observe patterns |
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| rate of change in velocity |
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| total distance an objacet travels divided by the total time it takes to travel that distance |
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| distance and direction of an objects change in poisition from the starting point |
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| forces on an object that combine to give a zero net force and do not change the motion of the object |
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| a push or pull exerceted on an object |
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| the resistance of an objects change in direction |
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| speed of an object at a given point |
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| sum of the forces that acting on an object |
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| distace an object travels per unit of time |
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| speed of an object in a given direction |
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| newtons second law of motion |
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| acceleration of an object in the same direction as the net force on the object and that the acceleration equals the net force divided by the object. |
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| force that opposes the sliding motion between two touching surfaces |
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| frictional force that prevents two surfaces from moving |
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| frictional force that opposes the motion of two surfaces sliding past each other |
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| force that opposes the moition of objects that move through the air |
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9.8m/s2
attractive force between two objects that depends on the masses of the objects and the distance between them |
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gravitational force exerted on an object
9.8m/s2 |
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| a net force that is dirceted toward the canter of a curved or circular path |
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| acceleration of an object toward the center of a curved path |
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| newtons third law of motion |
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| when one force is exerted on an object thr reaction is equal and opposite |
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| the product of mass and velocity |
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| energy a moving object has because of its motion; depends on the speed of the object |
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| energy stored when an object is compressed or streched |
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| stored energy due to position |
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| chemical potential energy |
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| energy stored in chemical bonds |
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| sum of potential energy and and kinetic energy in a system |
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| gravitational potential energy |
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| energy stored by objects due to their height above the earth and the objects mass |
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| a machine that does work with only one movement of the machine |
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| a bar that is free to pivot or turn ona fixed point |
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| a grooved whell with a rope, chain or cable running along the groove |
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| a simple machine consisting of a shaft or axel atachted to the center of a larger wheel |
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| an inclined plane wrapped around a cylinder like post |
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| an inclined plane with or two slopping slides |
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| two or more simple machines that opperate together |
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