A satellite revolves around the Earth in a circular orbit with a mechanical energy of 
J. What is its kinetic energy?
A.
B.
C.
D.
E.
Answer: C
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___________is the process of forming a sheet or film of thermoplastic polymer into a shape with heat and force.
Fill in the blank(s) with the appropriate word(s).
What is the direction of 
at point O?
A. A B. B C. C D. D E. E F. F T. Zero
The orbit of the Solar System around the Galaxy is similar to that of a planet, almost circular and in the galactic plane
Indicate whether the statement is true or false
Imagine that you touch the ball of an electroscope with your finger while a positive rod is near the ball. What causes the flow of negative charge into the electroscope?
a. You have an excess of negative charge on your hand, which you transfer to the electroscope. b. The positively charged rod attracts negative charge to the nearby parts of the electroscope and nearby parts of your hand. c. Both a. and b. d. The rod attracts negative charge from the atmosphere. e. The negative charge is attracted because your hand and the electroscope shaft are conductors.