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Vocab ch. 6
Vocabulary 1-7
Question | Answer |
---|---|
When two values change in opposite directions, so that if one increases the other decreases. | inversely |
The accelaration produced by a net force on a body is directly proportional to the magnitude of the net force, is in the same direction as the net force, and is inversely proportional to the mass of the body. | Newtons second law |
Anything that flows; in particular, any liquid or gas. | fluid |
friction, or drag, that acts on something moving through air | air resistance |
a diagram showing all the foorces acting on an object. | free body diagram |
force per unit of surface area where the force is perpendicular to the surface; meausred in pascals | pressure |
the SI unit of pressure. one pascal of pressure exerts in normal force of one newton per square meter. | pascal |
The speed at which the acceleration of a falling object is zero because friction balances the weight. | terminal speed |
Terminal speed together with the direction of motion(down for falling objects). | terminal velocity |