Introductory Physics Worksheet With Answers - Mcas Review Packet #1 - Nnhs Page 17
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NNHS Introductory Physics: MCAS Review
Packet #1
1. Motion and Forces
Broad Concept: Newton’s laws of motion and gravitation describe and predict the motion of
most objects.
31.) One 7.0 kg bowling ball is lifted to a
32.) Tides, such as those along the coast of
storage shelf 1.0 m above the floor. A second
Massachusetts, are caused by gravitational
7.0 kg ball is lifted to a storage shelf 2.0 m
attractions acting on Earth. Why is the
above the floor.
gravitational attraction of the Moon a greater
Which of the following best explains why the
factor in determining tides than the
measured force of gravity on each ball is nearly
gravitational attraction of the much larger Sun?
identical?
A. Earth is much closer to the Moon than to the
A. The final potential energy of each ball
Sun.
B. The Sun’s gravity is a factor only during the
increased.
B. The amount of work required to lift each
day.
C. The Moon’s core has a much greater density
ball is identical.
C. The distance of each ball from Earth’s
than the Sun’s core.
D. The Sun’s mass is smaller than the mass of
center of mass is almost identical.
D. The gravitational force of each ball on the
the Moon.
other cancels out the force of Earth’s gravity.
My Answer and Explanation:
My Answer and Explanation:
C. Measured force of gravity depends
A. The distance between the centers of
on the distance between the centers of
the two planetary objects is an
the two objects. Since the radius of the
important factor in tides.
Earth is far, far greater than 1m, it is
much more important than the 1m
difference in height. Statement A is
true but does not answer the question
asked.
Correct Answer and Explanation:
Correct Answer and Explanation:
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