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Physics-unit 1

Terms in this set (14)

Which of these questions can NOT be directly answered by Physics?
A. Should the government promote nuclear power?
B. How does uranium produce nuclear power?
C. What are the byproducts of a nuclear reaction?
D. How much energy is released in a nuclear reaction?
A.
Which of the following does NOT describe Physics?
A. It is a human attempt to understand the world.
B. It uses math to understand nature.
C. It deals with basic questions, like "Why is the sky blue?"
D. It is a collection of theories that are impossible to prove.
D.
Which of these numbers has the most significant digits?
A. 0.005
B. 0.050
C. 0.500
D. 5.000
D.
Which of these numbers has the fewest significant digits?
A. 2200
B. 0.006
C. 33.30
D. -0.100
B.
Calculate the answer to the correct number of significant digits. 2.5306 + 0.83=
3.36
Calculate the answer to the correct number of significant digits. 15.3 + 1.285
16.6
What is this number in scientific notation? 0.000000000386
3.86x10^-10
What is this number in scientific notation? 1250000000000
1.25x10^12
How many meters are in a kilometer?
A. 10
B. 100
C. 1000
D. 1,000,000
C.
Which prefix stands for 109 (one-billionth)?
A. k
В. m
С. с
D. n
D.
Which UNIT will the answer to this operation have? If the units cancel out, choose "No Unit" If the operation is not valid, choose "Not Valid"
5 kg/2s
A) kg
B) No Unit
C) kg•s
D) Not Valid
A.
Which UNIT will the answer to this operation have? (We're only interested in the units, not the number.) If the units cancel out, choose "No Unit" If the operation is not valid, choose "Not Valid" 5 m^2/2m
A) m
В) m^2
C) No Unit
D) Not Valid
A.
Convert 2.37 days into minutes. (You may have to break the conversion into several steps.)
A. 142 min
B. 56.9 min
C. 3410 min
D. 5.93 min
C.
Convert 9.25 lb into kg. (You may have to break the conversion into several steps.)
A. 204 kg
B. 148 kg
C. 7.04 kg
D. 4.19 kg
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