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PS100 Questions from Chapter 2 Comprehension true/false The laws of nature are treated differently for an object in uniform motion and an object at rest. true false If an object changes its state of motion (i.e. its direction or speed) then it must be accelerating. true false When an astronaut travels to the moon, his or her weight changes. Therefore, the astronaut's mass must also change. true false For an object to change its state of motion, an unblanaced force must act on it. true false Objects that interact always exert the same force on one another. true false matching Choose the law that is most apparent in each scenario. A boat glides through the water on a lake at constant speed in a straight line. An airplane circles the airport at a constant speed while waiting to land.
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A marathon runner begins running faster just before crossing the finish line. Comparing all forces that arise when a book sits on a table.
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