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Scince test VOCAB

chapt 2 test on vocab

Streamline To design smooth, rounded surfaces on an object so it slips through the air with the least possible possible resistance
Interia The tendecy of an object to stay at rest or to remain inmotion unless an outside force causes a force.
Air resistance Friction caused by gas molecules in the air hitting an object and slowing it down
Friction A force that resist the movement of one surface past another surfaec
Kilometers per hour The number of kilometers something can travel in a hour.
Speed A mesure of how far something something travels in a matter of time.
Velocity a Measure of speed in a certain diretion
Weight The force gravity exerts on an object mass
Mass The amount of matter in an object
Gravity A force that acts to pull pairs of objects together
Acceleration Rate of change in speed or direction of movement