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# Physics Ch 6

Is acceleration directly or inversely proportional to force? Directly
Is acceleration directly or inversely proportional to an object's mass? Inversely
What is the equation between mass, force and acceleration? F=MA
What is terminal velocity? Constant velocity due to air resistance
If a heavy person and a light person are falling at the same time who will fall faster? The heavy person.
Why will to objects of different mass hit the ground at the same time? The object smaller in mass has a proportionally small force acting upon it, it's easier to move. The object with more mass has a proportionally bigger force pulling on it, it's harder to pull.
What must the net force be for an object to be traveling at a constant velocity? Net Force=0
What does free fall mean? It means falling with no air resistance.
What does constant force on an object produce? Constant acceleration.
How do friction and weight relate? As weight increases, so do friction forces (directly proportional). The friction forces will always be slightly less than the weight at constant velocity.
What are the units for pressure? Newtons per meter squared or pascals.
What is the terminal velocity of a person with their parachute open? 15 km/h down.
Created by: f3ldman