see attachment
Name _________________________________
SCI 101 HOMEWORK ASSIGNMENT #4
DUE: Session 5 (11 Pts)
1. In which classification of waves are radio waves? (1-pt)
a. Mechanical transverse
b. Mechanical longitudinal
c. Emag transverse
d. Emag longitudinal
e. Emag diagonal
2. Based on their frequencies, which carries more energy? (1-pt)
a. FM radio wave
b. Infrared light
c. Microwave
d. Visible light
e. Newtonian wave
3. Count the light bulbs in your house. (4-pts)
a. How much total wattage do you have?
b. How much would it cost to leave all of them on for 1 day? Assume the cost is 12 cents/kw-hr.
4. Based on what we have studied about electrical charges and separations, which of the following are attracted to each other the strongest? (2-pts)
a. A +1 sodium atom separated by 4.0 distance units from a –2 oxygen atom.
b. A +1 hydrogen atom separate by 2.0 distance units from a +4 silicon atom.
c. A -2 oxygen atom in glass separated by 3.0 distance -1 chlorine atom.
d. A +1 sodium atom separated by 2.0 distance units from a -1 oxygen atom.
e. A +4 silicon atom separated by 2.0 distance units from a -2 oxygen atom.
5. If you are standing on a beach and waves come in every 10 seconds, with crests spaced 20 meters apart, what is the frequency of the waves? (3-pts)