PHSC1023 Practice Exam3 Dr. Logan Multiple Choice: Select the BEST answer for ea
ID: 1782267 • Letter: P
Question
PHSC1023 Practice Exam3 Dr. Logan Multiple Choice: Select the BEST answer for each question and mark your answer on your scantron (3 points each). 1. How fast do electromagnetic waves travel in a vacuum? A. 3.00 x 108 m/s B. 344 m/s C.9.80 m/ D. 3.44 x 106 m/s 2. Heat cannot flow spontaneously from a colder body to a hotter body is based on what law of A. First B. Second C. Third D. Fourth 3. The temperature on the Celsius scale is -40°C. What is the temperature on the Fahrenheit scale? (T1.8Tc+32) B. 233 F C-40° F D. answer is not listed 4. Freezing a flower to -1 K would violate which law of thermodynamics? A. First 5. A has a definite volume but no definite shape. A. solid 6. Systems left to themselves tend to become more ordered as far as the concept of entropy is concermed A. True 7. The number of cycles that pass through a stationary point in a given period of time is B. Second C. Third D. no law would be violated B. gasC. liquid D. plasma B. False C. wavelength D. cannot be determined A. frequency 8, which color has the shortest frequency? (Electromagnetic spectrum after #20) A. yellow 9. Sound waves propagate in which of the following? A. solids B. liquids 10. Radio waves are sound waves. A. True B. amplitude B. green C. violet D. red C. gases D. all of these B. FalseExplanation / Answer
1) A.
2) B
3) C
4) B
5) C
6) A
7) A
8) B
9) A
10) B
11) D
12) C
13) B
14) D
15) A
16) A
17) A
18) D
19) A
20) A.
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