Chapter 1, About Science Video Solutions, Conceptual Physics Fundamentals

01:07

Problem 1

What is the penalty for scientific fraud in the science community?

Eduard Sanchez

Numerade Educator

00:36

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.

Abhishek Jana

Numerade Educator

01:27

Problem 3

In answer to the question, when a plant grows, where does the material come from? Aristotle hypothesized by logic that all material came from the soil. Do you consider his hypothesis to be correct, incorrect, or partially correct? What experiments do you propose to support your choice?

Salamat Ali

Numerade Educator

00:46

Problem 4

The great philosopher and mathematician Bertrand Russell (1872-1970) 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 as a sign of strength in Bertrand Russell? (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?)

Keshav Singh

Numerade Educator

00:43

Problem 5

Bertrand Russell wrote, "I think we must retain the belief that scientific knowledge is one of the glories of man. I will not maintain that knowledge can never do harm. I think such general propositions can almost always be refuted by well-chosen examples. What I will maintainand maintain vigorously - is that knowledge is very much more often useful than harmful and that fear of knowledge is very much more often harmful than useful." Think of examples to support this statement.

Keshav Singh

Numerade Educator

00:52

Problem 6

When you step from the shade into the sunlight, the Sun's heat is as evident as the heat from hot coals in a fireplace in an otherwise cold room. You feel the Sun's heat not because of its high temperature (higher temperatures can be found in some welder's torches), but because the Sun is big. Which do you estimate is larger, the Sun's radius or the distance between the Moon and Earth?

Abhishek Jana

Numerade Educator

01:26

Problem 7

What is probably being misunderstood by a person who says, "But that's only a scientific theory"?

Eduard Sanchez

Numerade Educator

01:40

Problem 8

Scientists call a theory that unites many ideas in a simple way beautiful. Are unity and simplicity among the criteria of beauty outside of science? Support your answer.

Morgan Cheatham

Numerade Educator

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