N. e.o. collisions quiz

1. newton’s second law (force = mass x acceleration) describes the ability of an object to move something. which part of the equation is the same for all free falling objects?
a. massb. accelerationc. both
2. why do all free falling objects accelerate toward earth the same?
a. earth has constant gravityb. all objects have the same massc. all objects have the same amount of force
3. according to newton’s second law, how many newtons of force did your largest object have the ability to create?
4. how much times more mass did your larger impactor have compared to the smaller one?
5. how much times bigger of a crater did your larger impactor create compared to the smaller one?
6. what does the data reveal about the relationship between crater size and mass of the impactor?
a. more mass = larger craterb. more mass = smaller craterc. mass has little or no effect on impact craters.
7. how much times bigger of a crater did your higher impactor create compared to the lower one?
8. what does the height of the impactor affect?
a. massb. accelerationc. velocity (speed)
9. what does the data reveal about the relationship between crater size and speed of the impactor?
a. more speed = larger craterb. more speed = smaller craterc. speed has little or no effect on impact craters.
10. the size of a crater made during impact depends on the amount of kinetic energy possessed by the impacting object. kinetic energy =
calculate the kinetic energy of a 5 gram marble falling at a speed of 626 m/s.

11. what would happen to the kinetic energy of the same marble if it fell from a higher distance than before?
a. increaseb. decrease c. stays same
12. based on newton’s second law, (f = m x a) which data is most important in determining how much impact force from an n. e.o.?
a. massb. accelerationc. none
13. based on your previous answer, explain why there is a size requirement for monitoring n. e.o. s
14. based on the kinetic energy equation (ke), which data is most important in determining the damage done in a car collision?
a. massb. velocityc. none
15. based on the kinetic energy equation, what should you be very aware of as a driver of a vehicle?
16. what do you think would happen to the craters in this lab if we added force with a slingshot?
a. largerb. smallerc. same
17. what do scientists call the debris and dust that gets thrown around during a crater impact?
18. what do you think would happen to the ejecta from the craters if the object hit the sand at an angle from left to right and not straight on?
a. it would mostly go leftb. it would mostly go rightc. it would go evenly in all directions.
19. an n. e.o. would most likely hit earth at an angle and not straight on like we did in our lab.
a. trueb. false
20. according to the article, if an asteroid hit earth it would have the energy of a bomb?
a. tonb. hundred tonc. thousand tond. megaton
21. cite a quote from the article to describe the damaging effects of an asteroid impact.