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Mastery Quiz
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1An object undergoing free fall experiences
A)an increase in its acceleration
B)a decrease in its acceleration
C)a constant acceleration.



2The value for the acceleration due to gravity is m/s2.



3Just after it is released an object thrown upward has
A)its velocity directed upward and its acceleration directed upward
B)its velocity directed upward and its acceleration directed downward
C)its velocity directed downward and its acceleration directed upward
D)its velocity directed downward and its acceleration directed downward



4Just before it reaches the peak of the path of its motion an object thrown upward has
A)its velocity directed upward and its acceleration directed upward
B)its velocity directed upward and its acceleration directed downward
C)its velocity directed downward and its acceleration directed upward
D)its velocity directed downward and its acceleration directed downward



5After it passes the peak of the path of its motion an object thrown upward has
A)its velocity directed upward and its acceleration directed upward
B)its velocity directed upward and its acceleration directed downward
C)its velocity directed downward and its acceleration directed upward
D)its velocity directed downward and its acceleration directed downward



6Galileo
A)performed experiments proving the theories of Aristotle about motion
B)showed that heavier objects fall at a faster rate than lighter objects
C)showed that in the absence of air resistance all objects fall at the same rate regardless of their weight



7A freely falling object (neglecting air resistance) has its velocity
A)increase linearly with time
B)remain constant
C)decrease linearly with time
D)increase as the square of the time



8A freely falling object (neglecting air resistance) has its displacement
A)increase linearly with time
B)remain constant
C)decrease linearly with time
D)increase as the square of the time



9During every second after an object is dropped from rest and experiences free fall its speed
A)decreases by 9.8 m/s
B)decreases by 4.9 m/s
C)increases by 9.8 m/s
D)increases by 4.9 m/s



10During the first second after an object is dropped from rest and experiences free fall its displacement
A)decreases by 9.8 m
B)decreases by 4.9 m
C)increases by 9.8 m
D)increases by 4.9 m







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