Lesson 14.2 Make-up lab

INVESTIGATING MASS AND WEIGHT

Use the following internet sites to help answer the questions listed below.

Internet sites:

http://www.nyu.edu/pages/mathmol/textbook/weightvmass.html

http://www.physlink.com/Education/AskExperts/ae321.cfm?CFID=17052405&CFTOKEN=10731699

http://www.hitxp.com/phy/cph/020902.htm

http://ourworld.compuserve.com/homepages/Gene_Nygaard/weight.htm

1. How are mass and weight related?

2. What is the force that makes an object have weight?

3. What two factors affect the gravity at a planet’s surface?

4. If Mars has more mass than Mercury, why is the force of gravity on the surface of Mars nearly the same as the force of gravity on the surface of Mercury?

5. Why is it necessary to know the difference between mass and weight?

6. How does the difference affect space travel?