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8th Physical Science
8th Physical Science flash cards on matter
Term | Definition |
---|---|
Qualitative Observation | Made by gathering 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 the experiment that changes |
Manipulated Variable | A factor in a controlled experiment that is intentionally changed by the experimenter |
Theory | A well tested explanation for a wide range of observations or experimental results |
Inquiry | To ask for information |
Mechanical Advantage | The ratio of the output force produced by a machine to the applied inputforce |
Work | Force exerted on an object that causes it to move |
Force | A push or pull exerted on an object |
Newton (N) | A unit of force required to move 1 kilogram 1 meter squared |
Gravity | The force tat pulls objects toward each other |
Physical Propertiy | Does not change the substance, only the for |
Chemical Property | A change that produces one or more new substances |
Mass | Amount of matter in an object |
Weight | The gravity on an object |
Unit of Mass | Grams |
Newton's first law | An object at rest stays at rest or an object that is moving at a volocity unless another force acts on it |
Newton's second law | The amount |