13. What affect does doubling the mass of an egg have upon the force that the egg experience?
 a. Doubling the mass makes the force twice as large.
 b. Doubling the mass makes the force one-half as large
 c. Doubling the mass makes the force larger, but less than two times larger
 d. Doubling the mass seems to have no affect upon the force experienced by the egg.

14. Which one of the following questions cannot be answered by the Egg Drop Interactive?
 a. What affect does rebounding have upon the safety of an egg as it lands?
 b. What affect does the size of an egg have upon its impact force upon landing?
 c. What affect does the nature of a surface have upon the impact force of an egg that lands upon it?
 d. What affect does the height from which an egg falls have upon the velocity change it will encounter upon impact?

Background: This Interactive involves observing the results of dropping an egg onto a surface. The size of the egg, the height from which it is dropped, and the characteristics of the landing surface can be varied. The interactive is based on the impulse-momentum change theorem