Today's excerpt was from Hawking's A Brief History of Time. We read pp. 15-18. Based on those readings, answer the following questions.
1. What are the two requirements of a theory?
2. Aristotle's theory that everything was made of four elements: earth, air, fire, and water was decidedly NOT a theory. Why? What was it lacking?
3. Why can you never prove a theory to be correct?
4. What do you need in order to disprove a theory?
5. What led to a knowledge that Einstein's theory of relativity is more accurate than Newton's theory?
6. Why do we still use Newton's theory if Einstein's is more accurate?
7. What may be a problem with looking at theories in small parts instead of as a whole?
8. Which is more important when calculating gravitational pull: mass or what a body (planet, star, etc.) is made out of?
1. What are the two requirements of a theory?
2. Aristotle's theory that everything was made of four elements: earth, air, fire, and water was decidedly NOT a theory. Why? What was it lacking?
3. Why can you never prove a theory to be correct?
4. What do you need in order to disprove a theory?
5. What led to a knowledge that Einstein's theory of relativity is more accurate than Newton's theory?
6. Why do we still use Newton's theory if Einstein's is more accurate?
7. What may be a problem with looking at theories in small parts instead of as a whole?
8. Which is more important when calculating gravitational pull: mass or what a body (planet, star, etc.) is made out of?