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18 questions
Near the earth's surface, how much is the acceleration of gravity?
9.8m/s2
98.6m
100.1 mg
980 miles per second
Which of these forces opposes acceleration due to gravity?
momentum
air resistance
reaction force
terminal velocity
What force causes a leaf to fall more slowly than a penny?
gravity
momentum
inertia
air resistance
When an object is falling, what is is called when air resistance and acceleration due to gravity become equal?
negative acceleration
centripetal acceleration
terminal velocity
weightlessness
Which of the following does not affect the amount of air resistance that acts on an object?
mass
surface area
shape
speed
Do objects with greater mass fall faster than objects with less mass?
Yes - objects with more mass fall faster
No, all objects fall at the same rate regardless of mass
The amount of matter an object has is its ___________
force
mass
wieght
momentum
The force of gravity on an object is its __________
force
mass
weight
momentum
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