PHYS 1010 Final exam questions with answers

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




the study of motion, matter, energy and forces. This basically means figuring
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



out how things in our world work. - CORRECT ANSWERS ✔✔Physics
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\




Questions which we would now consider to be physics questions originally
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



fell within the field of ________________. - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\



✔✔philosophy



The Greek philosopher __________________(384 -322 B.C.) attempted to
|\ |\ |\ |\ |\ |\ |\ |\



describe the motion of objects. His theory was the predecessor to modern
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



physics, but was not really "physics" in the way we now think of it. -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



CORRECT ANSWERS ✔✔Aristotle |\ |\




Aristotle suggested that the world was composed of four elements in the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



order of? (from bottom to top) - CORRECT ANSWERS ✔✔earth, water, air,
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



fire



The natural state of objects was to be at rest in their proper order, and
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



objects would naturally move to achieve this natural state. Who said this? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



CORRECT ANSWERS ✔✔Aristotle |\ |\




What were the major weaknesses of Aristotelian physics? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\



ANSWERS ✔✔neglected friction and air resistance
|\ |\ |\ |\ |\

,________________ 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
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



the Heavenly Spheres - CORRECT ANSWERS ✔✔copernicus
|\ |\ |\ |\ |\ |\




Who is often referred to as the Father of Modern Science and why? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



CORRECT ANSWERS ✔✔Galileo because when he did not believe
|\ |\ |\ |\ |\ |\ |\ |\ |\



aristotelian physics to be correct, he conducted experiments and gathered
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\



data to find the truth, for this approach to answering questions, he is known
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



by this name.
|\ |\ |\




What experiment was used by Galileo to disprove Aristotle's ideas on an
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



objects "natural motion"? - CORRECT ANSWERS ✔✔balls rolled uphill and
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\



downhill on different inclines |\ |\ |\




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



CORRECT ANSWERS ✔✔force |\ |\




What did Galileo conclude considering the natural motion of objects? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



CORRECT ANSWERS ✔✔Objects will continue moving at a constant speed
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\



unless somethings acts to cause a change in the speed
|\ |\ |\ |\ |\ |\ |\ |\ |\




The property of an object to resist a change in its motion - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



ANSWERS ✔✔inertia |\




how quickly its position is changing with time. - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



✔✔speed

, when an object is moving at a constant speed, the distance versus time graph
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



is a straight line, and the speed of the object (cart in this case) is described
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



by the slope of the graph. Moving faster causes a _____________ slope, and
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



moving slower causes a shallower (less steep) slope. - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



✔✔steeper



What is the formula for speed? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\



✔✔speed=distance/time



So if a car is traveling down the highway at a constant speed from Ogden to
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



Salt Lake City, which is approximately 45 km away, and if it takes 45
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



minutes = 0.75 hours for the trip, then the speed of the car is? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



ANSWERS ✔✔60 km/h (speed=45 km/0.75 h) |\ |\ |\ |\ |\




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



CORRECT ANSWERS ✔✔accelerating |\ |\




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



ANSWERS ✔✔velocity |\




a change in velocity. - CORRECT ANSWERS ✔✔acceleration
|\ |\ |\ |\ |\ |\ |\




Every object continues in its state of rest, or of uniform motion in a straight
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



line, unless it is compelled to change that state by forces impressed upon it -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



CORRECT ANSWERS ✔✔Newton's 1st law |\ |\ |\ |\