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8th Physical Science
| Term | Definition |
|---|---|
| Qualitative | Made by gathering information that can be recorded using descriptive language. |
| Quantitative | 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 scientists 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 experimentation. |
| Variable | Part of an experiment that changes. |
| Manipulative variable | A factor in a controlled experiment that is intentionally changed by the experimenter |
| # 8 | |
| Question | To ask for 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. |
| Physical Properties | Characteristics of a pure substance that can be observed without changing into another substance. |
| Chemical Properties | A pure substance that cannot be broken down into other substances by chemical or physical. |
| Weight | A measure of the force of gravity on an object. |
| Mass | The amount of matter in an object. |
| Work | |
| Newton | A unit of force required to move 1 kilogram 1 meter squared. |
| Force | |
| Gravity | |
| Newton's Law 1 | 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 object acts on it. |
| Newton's Law 2 | The amount of force needed to make an object change it's speed depends on the mass of the object and the acceleration required. |
| Newton's Law 3 | For every action there is an equal and opposite action. |
| Mechanical Advantage | The ratio of the output force produced by a machine to the applied input force. |