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8th Physical Science

TermDefinition
qualitative observation made by gathering information that can be recorded using descriptive language.
quantitative observation made by gathering information that can be recorded as a number with a measurement unit.
inference not a fact, but an interpretation of what the direct observations mean.
scientific law describes what scientist expect to happen every time under a particular set of conditions.
constant part of an experiment that is held in the same condition for control and experiment.
variable part of an experiment that changes.
manipulated variable M.V. a factor in a controlled experiment that is intentionally changed by the experimenter.
scientific therory a well tested explanation for a wide range of observations of experimental results.
inquiry to ask of information.
responding variable a resulting factor in a controlled experiment that is observed and measured to see if it changes due to the manipulation of another variable.
experiment a course of action completed in order to test a hypothesis .
control a standard to which all other levels are compared in a scientific experiment.
Newton's A unit of force required to move 1 kilogram 1 meter squared.
Newton's First Law An object at rest stays at rest or an object that is moving at a velocity in a straight line keeps moving at that velocity unless another force acts on it.
Newton's Second Law The amount of force needed yo make an object change its speed depends on the mass of the object and the acceleration required.
Newton's Third Law For every action (or force) there is an equal and opposite action (or force).
Mechanical Advantage The ratio of the output force produced by a machine to the applied input force.
Work Force exerted on an object that causes it to move.
Force A push or pull on an object.
Gravity The force that pulls objects toward each other.
Created by: 3062397
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