Spring 2003

Inquiry in the Natural World

Student Guide, Topic 3 (Motion)

 

Topic Objectives

 

Wednesday Reading Assignment

Trefil and Hazen, The Sciences, 3rd ed. Ch 2 pp. 36 to 49

 

Wednesday Active Learning Exercises

 

1)How could you use Newton's 1st law to explain to a friend why we don’t feel the Earth’s motion?  Can you cite any examples that would support your explanation?

 

2)   How would you distinguish between weight and mass?  How could you use Newton's gravitational law to help explain the difference?

 

3)  Estimate the acceleration due to gravity on the Moon using Newton’s Universal Law of gravitation.  Using this, estimate your weight.  What about on Jupiter?

 

Info: MassJupiter=360 Earth masses, RadiusJupiter=12 Earth radii

      MassMoon= 1/80 Earth masses, RadiusMoon= ½ Earth radii

 

Reading for Friday

Excerpts from: Physics for the Inquiring Mind E. Rogers (1960).

http://web.sbu.edu/physics/faculty/dimattio/Clare102/physics.dimattio-sp03.htm

 

Questions for discussion:

 

1.   How does Galileo's description of motion differ from that of Aristotle?

2.   How does Newton's theory of motion compare to that of  Galileo?

3.   Why is Newton's theory of motion a good example of what a  scientific theory should be?