When a force of F is applied to an object with a mass of M it causes an acceleration of A. If the applied force is doubled (2F) what is the acceleration?
2A (double)
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10
Are acceleration and mass of an object directly or inversely related? (hint: F=ma)
inversely
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10
T/F: An object's acceleration is ALWAYS in the same direction as the net force.
True
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15
When an object is dropped what is the initial velocity?
0 m/s
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20
What must be true about acceleration and velocity if an object is slowing down?
acceleration and velocity must be in opposite directions
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25
At what time(s) did the object turn around (change direction)?
1s and 7s (whenever the line for the v-t graph crosses the x-axis the object is changing direction)
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15
The acceleration of an object directly relates with the ____ of the object.
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10
If the frictional force is greater than the applied force is the object speeding up or slowing down?
slowing down
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20
What must be true about acceleration and velocity if an object is speeding up?
acceleration and velocity must be in the same direction
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10
What is 112 cm in meters?
1.12 m
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20
If a baseball is thrown into the air, is the displacement positive or negative when the velocity is zero?
velocity is zero at the peak of the path (parabolic curve), at this point displacement is positive
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10
What does the slope of a velocity v. time graph tell you?
