NATS-101 Introduction to Global Change- Pretend Quiz 1  ____________________  ____________________________

                                                                                                First Name                    Family Name

FOR M/C SELECT SINGLE BEST ANSWER AMONG CHOICES, AND PLACE LETTER OF BEST ANSWER IN BLANK TO LEFT OF QUESTION NUMBER.

(Quiz 1 will be based on lectures through 1/24, Mackenzie readings pp. 1-8, 197-221, 11-35, 43-69 with emphasis on materials covered in class)

 

      1. Evidence for the Big Bang comes from         .

A. the subatomic structure of atoms                   C. layered structure of the Earth

B. distance and speed of galaxies                       D. nebula from which our solar system formed  

 

___2.  You can earn up to _____ extra credit points toward your final grade.

A. 3                  B. 5                  C. 7                  D. 10

 

___3. The universe is made up of galaxies, and                           .

A. galaxies are made up of stars                        C. our solar system is made up of galaxies

B. galaxies are made up of planets                     D. our planet is at the center of the universe                  

 

      4. Newton's second law states that         .

A. gravity can hurt your head     C. hit with the same force, a nerf ball would move faster than a bowling ball

B. energy is always conserved   D. your room will get messier and messier                                

      5. 42He represents        .

A. helium with 2 neutrons & 2 protons                C. hydrogen with 4 neutrons and 2 protons

B. helium with 4 neutrons & 2 protons                D. helium with 4 protons and 2 neutrons             

 

      6. Earth belongs to a group of planets ("terrestrial") with        .

A. high density and lots of Mg, Si, Fe, O             C. low density and lots of N, H, C

B. high density and lots of N, H, C                      D. low density and lots of Mg, Si, Fe, O             

 

      7. (1)        reactions involve electrons and are relatively low energy compared to (2)        reactions that involve neutrons and protons.

A. 1-nuclear      2-chemical                                C. 1-gravitational           2-chemical

B. 1-nuclear      2-gravitational                           D. 1-chemical               2-nuclear                     

 

___8. Most of the mass (matter) in our solar system is               .

A. in the sun                             C. in the Earth's core

B. in the planets                                    D. in Jupiter                 

                                                           

___9. Amazing as it may sound, the lowest final grade in this class that is still passing is ________.

A. 40                B. 50                C.60                 D. 70

 

      10. The Earth's core is made up primarily of         .

A. helium                      C. iron

B. oxygen                     D. hydrogen                                                                                         

 

      11. Evidence that the nebula from which our solar system came at least, in part, from the remnants of earlier stars.

A. the Hubble constant              C. the carbon and oxygen making up most of your body

B. the red shift                          D. helium balloons on your birthday                                           

 

____12. Electromagnetic radiation with a wavelength of 1.23 x 10-4 meters would be _______ in expanded general notation.

A. 1,234m                     B. 0.01234m                 C. 12,300m                   D. 0.000123m               E. –12,300m

                                   

____13. 10 inches is __________  centimeters. (1in=2.54cm; 1foot=12in; 1cm=0.394cm)

A. 3.94             B. 0.254            C. 0.833            D. 120              E. 25.4 

 

____14. The Doppler effect results in which of the following observations when distant galaxies are viewed?

A. hot spots      B. red shift        C. Big Bang      D. fusion           E. thermodynamics                   

 

15. If someone showed you a ring and said the silver came from the mines in Potosi, Mexico, and an ore deposit dated at 25 million years old, what could you tell him/her about where/how those silver atoms themselves originated? (3 or 4 well-written sentences)