Physics Chapter 1
10. Outline the Steps of the classic Scientific Method.
1. State the question(problem) 2. Collect information(research) 3. Form a hypothesis 4. Test hypothesis(experiment) 5. Record and study data 6. Draw a conclusion (relate to hypothesis)
What is pseudoscience?
A "science" that lacks evidence. Example- astrology, big foot
11. Distinguish among a scientific fact, a hypothesis, a law, and a theory.
A fact is an observation that has been confirmed and is accepted as true. A law is a statement of fact meant to explain a phenomenon, and has been tested without being refuted. A theory is a hypothesis that has been supported through tests multiple times and is valid as long as no evidence disputes it. A hypothesis is an educated guess that is presumed to be true until it's supported or refuted by an experiment. While facts, laws, and theories are all true based on evidence and testing, a hypothesis is not alway true. A hypothesis is an educated guess, but can always be wrong and invalid.
12. In daily life, people are often praised for maintining some particular point of view, for the "courage of their convictions." A change of mind is seen as a sign of weakness. How is it different in science?
In science, a change of mind is seen as a sign of more advanced research. If a scientist changes his mind about something, that means he has found more information to support or go against his hypothesis. For example, when the world was thought to be flat, when evidence showed it was round it showed more extensive research and people supported that.
Metric Conversion units
Kilo Hecto Deka BASE(M,L,G) Deci Centi Milli
9. What is the role of equations in this course (Mathematics- The language of Science)
The purpose of equations in physics is to find the applied force and gravity for a single object. To tell how something is doing something and why it's happening. An equation, itself, can be proven.
Theory
a hypothesis that has been supported by repeated testing. It is valid until disputed
Law
a statement of fact meant to explain, in concise terms, a phenomenon. It was tested repeatedly without being refuted
independent variables
are manipulated (x-axis)
hypothesis
educated guess that is presumed to be true unless it is either supported or refuted by an experiment. it can be tested
Everything is made of...
matter and energy
Fact
observation that has been confirmed repeatedly and is accepted as true
dependent variables
observed and measured (y-axis)
Arts are concerned with
personal interpretation and creative expression
Religion addresses
source purpose and meaning
constants
stay the same
Science
the study of living and nonliving things
Physics
the study of motion, forces, energy, matter, heat, sound, light, and the structure of atoms
