Physics C-100

Topics: Velocity, Newton's laws of motion, Kinematics Pages: 6 (1941 words) Published: June 22, 2014
Physics C-110
Module 1

Chapter 1
1. What is science?
Science is a body of knowledge that is ever changing. It is made up of not only facts but also theories that are made up of well-tested hypotheses.

2. Distinguish among the scientific fact, hypothesis, law and theory As stated above, a theory is made up of well-tested hypotheses, which in themselves are well educated guesses yet to be proven. A fact is something that can change over time even though it was agreed upon by knowledgeable scientists. Scientific laws are not specific, are mostly principles and are the result of repeated observations.

3. Why do some people think they have to choose between science and religion? They are either uninformed or misinformed to believe that must choose. Science and religion are very different as the domain of science is nature’s order whereas religion’s domain is nature’s intent.

4. Clearly distinguish between Science and Technology.
Science is a body of knowledge that not only uses technology as a tool but also is used in the development of technology. As scientists make more and more breakthroughs, they are using the latest and greatest technology to do so and in turn more technological breakthroughs.

5. Why is Physics considered to be the basic Science?
Physics may be considered one of the physical sciences but it is the foundation that other physical sciences are built upon. It deals with forces, light, atoms and matter to begin with, which are the building blocks of all things, including other sciences.

Exercises
1. What is the penalty for scientific fraud in the science community? The punishment for scientific fraud is professional excommunication, or in simpler terms, their work is no longer recognized as that of a scientist.

2. Which of the following are scientific hypotheses? (a) Chlorophyll makes grass green. (b) Earth rotates about its axis because living things need an alternation of light and darkness. (c) Tides are caused by the moon. (a) is the only hypothesis because there is a test for falseness. Though the other examples may very well be true, there is either no true test to see if it is true or not, or they are a matter of opinion, like why does the Earth spin about its axis.

4. The great philosopher and mathematician Bertrand Russell wrote about ideas in the early part of his life that he rejected in the latter part of his life. Do you see this as a sign of weakness or a sign of strength? (Do you speculate that your present ideas about the world around you will change as you learn and experience more, or do you speculate that further knowledge and experience will solidify your present understanding?) I see that as a strength, many people just take for granted what was told to them as an unchanging fact, and it is the people who have questioned these facts that have truly reshaped our world in all aspects, not just science and mathematics.

6. When you step from shade into the sunlight, the Sun’s heat is as evident as the coals in a fireplace in an otherwise cold room. You feel the Sun’s heat, not because of its high temperature, but because the Sun is big. Which do you estimate is larger, the Sun’s radius or the distance between the moon and the Earth? Do you find your answer surprising? I estimated that the distance to the moon was slightly larger than the Sun’s radius, but in actuality the Sun’s radius is larger than the distance to the moon which was very surprising to me from the lower level science classes that I remember.

7. What is probably misunderstood by a person that says, “But that’s only a scientific theory”? The process of formulating a scientific theory is a very tedious process consisting of analyzing many well-tested hypotheses and facts.

Chapter 2
1. What are the three major items of Aristotle that Galileo nullified? The first was his idea of motion, proving that weight doesn’t matter on time of falling objects, proving this...
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