Thin Lenses: A lab specimen is 15.2 mm from a converging lens. The image is 4.0 mm tall and 9.0 cm from the lens. How tall is the specimen?
A. 6.8 mm
B. 5.4 mm
C. 1.7 mm
D. 0.68 mm
Answer: D
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A boat is traveling at 4.0 m/s as it passes the starting line of a race. If the boat accelerates at 1.0 
for 6.0 seconds, then the average velocity of the boat for the 6.0 seconds is
A. 21 m/s. B. 9.0 m/s. C. 13 m/s. D. 10 m/s. E. 7.0 m/s.
An atom gains one extra electron. How does the resulting ion behave when it is near a positively charged transparency? How does the ion behave when it is near a negatively charged tissue?
A) The ion is attracted to the positively charged transparency, but repelled from the negatively charged tissue. B) The ion is repelled from both the transparency and from the tissue. C) The ion is repelled from the positively charged transparency, but attracted to the negatively charged tissue. D) The ion is attracted to both the transparency and to the tissue.
Explain how gravity is used to explain the presence of the tides we experience on Earth
What will be an ideal response?
What is the Sun's outermost atmosphere called?
A. the radiative zone B. the photosphere C. the corona D. the chromosphere