click below
click below
Normal Size Small Size show me how
8th Science Vocab
Term | Definition |
---|---|
Speed | The rate at which an object moves |
Average Speed | Speed=Difference/ Time |
Velocity | Tells the rate an object moves and in which direction it moves Think of a air traffic controller |
Acceleration | Change in velocity (speed and direction) and direction of an object **A car going at the same speed but turning* |
Force | The push or pull between objects |
Mass | The amount of matter making up an object |
Independent Variable | What you change in your experiment or it´s the variable that you´re testing |
Dependent Variable | It´s what we measure: the information you put in the data table *changes the independent variable doesn´t depend on anything else (stands alone) |
Inertia | 1)The tendency of ALL objects to RESIST a change in motion 2) the MORE mass an object has the the MORE INERTIA IT HAS |
Newton's First Law | Effect of balanced and unbalanced forces on an object at rest ans on an object in motion |
Newton´s Second Law | The amount of force needed to accelerate an object. It depends upon a mass of the object. |
Mass VS. Weight | Mass: Does not change with location Weight: It does change with location. A measure of the force of gravity. |
Balanced Forces | There is no motion |
Unbalanced Forces | One side powers the other *So it will move to he side that pushes harder. |
Energy | Ability to do work or to cause. Exists in many forms. |
Frame of reference | The point of view which you observe motion Example: ¨You are traveling north and your friend are not moving. That's because you and your friends are in the same reference frame. |
Resultant | Occurring or produced as a result or consequence of something |
Vectors | Magnitude & the direction of the force 10 N R (vector) |