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PHYS 1010 Final exam questions with answers

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PHYS 1010 Final exam questions with answers

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PHYS 1010 Final exam questions with answers|\ |\ |\ |\ |\ |\




the study of motion, matter, energy and forces. This basically means figuring
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out how things in our world work. - CORRECT ANSWERS ✔✔Physics
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Questions which we would now consider to be physics questions originally
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fell within the field of ________________. - CORRECT ANSWERS
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✔✔philosophy



The Greek philosopher __________________(384 -322 B.C.) attempted to
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describe the motion of objects. His theory was the predecessor to modern
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physics, but was not really "physics" in the way we now think of it. -
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CORRECT ANSWERS ✔✔Aristotle |\ |\




Aristotle suggested that the world was composed of four elements in the
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order of? (from bottom to top) - CORRECT ANSWERS ✔✔earth, water, air,
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fire



The natural state of objects was to be at rest in their proper order, and
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objects would naturally move to achieve this natural state. Who said this? -
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CORRECT ANSWERS ✔✔Aristotle |\ |\




What were the major weaknesses of Aristotelian physics? - CORRECT
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ANSWERS ✔✔neglected friction and air resistance
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,________________ published his theory that the Sun rather than the Earth |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



was in the center of the universe in his book entitled On the Revolution of
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the Heavenly Spheres - CORRECT ANSWERS ✔✔copernicus
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Who is often referred to as the Father of Modern Science and why? -
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CORRECT ANSWERS ✔✔Galileo because when he did not believe
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aristotelian physics to be correct, he conducted experiments and gathered
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data to find the truth, for this approach to answering questions, he is known
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by this name.
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What experiment was used by Galileo to disprove Aristotle's ideas on an
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objects "natural motion"? - CORRECT ANSWERS ✔✔balls rolled uphill and
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downhill on different inclines |\ |\ |\




For the speed of an object to change, a ___________ must act upon it -
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CORRECT ANSWERS ✔✔force |\ |\




What did Galileo conclude considering the natural motion of objects? -
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CORRECT ANSWERS ✔✔Objects will continue moving at a constant speed
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unless somethings acts to cause a change in the speed
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The property of an object to resist a change in its motion - CORRECT
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ANSWERS ✔✔inertia |\




how quickly its position is changing with time. - CORRECT ANSWERS
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✔✔speed

, when an object is moving at a constant speed, the distance versus time graph
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is a straight line, and the speed of the object (cart in this case) is described
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by the slope of the graph. Moving faster causes a _____________ slope, and
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moving slower causes a shallower (less steep) slope. - CORRECT ANSWERS
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✔✔steeper



What is the formula for speed? - CORRECT ANSWERS
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✔✔speed=distance/time



So if a car is traveling down the highway at a constant speed from Ogden to
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Salt Lake City, which is approximately 45 km away, and if it takes 45
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minutes = 0.75 hours for the trip, then the speed of the car is? - CORRECT
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ANSWERS ✔✔60 km/h (speed=45 km/0.75 h) |\ |\ |\ |\ |\




when an object's speed is changing we say that it is _________________. -
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CORRECT ANSWERS ✔✔accelerating |\ |\




your speed AND the direction you are going together. - CORRECT
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ANSWERS ✔✔velocity |\




a change in velocity. - CORRECT ANSWERS ✔✔acceleration
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Every object continues in its state of rest, or of uniform motion in a straight
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line, unless it is compelled to change that state by forces impressed upon it -
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CORRECT ANSWERS ✔✔Newton's 1st law |\ |\ |\ |\

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