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science chapter 1 section 2
Terms in this set (8)
What causes tides?
the gravitational pull of the moon and sun
The magnitude of gravitational force between two objects is
Proportional to their masses and Inversely proportional to the square of the distance between them
What is terminal velocity?
the constant velocity of a falling object when the force of air resistance is equal in magnitude and opposite in direction to the force of gravity so a falling object will travel at a constant speed.
The Earth's gravitational force...
1. Pulls objects downward, toward the center of Earth.
2. Is approximately constant over the range of heights encountered in everyday life.
3. Causes a downward acceleration of 9.8 m/s2
The center of mass is:
is the average location of the mass in a system.
center of mass and the center of _______ may not be in the same location.
True or False: The center of mass and the center of gravity of an object may lie outside the objects boundaries.
What is the equation for Force? (F is force m is mass and a is acceleration)
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