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8th science vocab
Term | Definition |
---|---|
Speed | The rate at which an object moves. |
Avenge Speed | Distance divided by time. |
Velocity | Tells the rate of the object moves and witch direction it moves. |
Acceleration | Change in velocity (speed and direction) of an object. - Think like of a car |
Force | In science the push or pull between object. |
Mass | The amount of matter making up an object. |
Independent variable | what you change in your experiment or its variable that your testing. |
Dependent variable | its what you measure: the information you put in the data table * changes the independent variable * does not depend on anything else (stands alone) |
Inertia | 1) the tendency off all objects to resist a change in motion 2) the more mass an object has the more inertia it has |
Newton's 1st law of motion | effect of balanced and unbalanced forces on an object at rest and on an object in motion |
Newton's 2nd law of motion | The amount of force needed to accelerate an object. It depends upon the mass of the object |
Mass v.s. Weight | Mass: does not change with location Weight: it does change with location. A measure of the force of gravity |
Frame of Reference | a framework that is used for the observation and mathematical description |
Assumption | a thing that is accepted as true or as certain to happen, without proof. |
Vector | Magnitude and the direction of the force |