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Question 1: If the activity of a particular radioactive
sample is 20 Curies and its half-life is 100 years,
what activity would you expect after 200 years?
Question 2: The photoelectric
effect demonstrates that an increase in the brightness
of the light directed at a metal surface causes
an increase in the emitted electrons:
a. wavelength
b. speed
c. energy
d. number
Question 3: What is the power needed by a toaster
that draws a current of 9 amperes when plugged
into 120 volts?
Question 4: What is the resistance of an ideal
ammeter?
Question 5: In the CPU, the instruction register
holds the instruction which is doing what?
Question 6: Bacteria in the human body produce
vitamin K, which is important in the clotting of
blood. Where are these bacteria located?
Question 7: What nucleic base replaces thymine
in an RNA molecule?
Question 8: What are bacteria called that can
live without oxygen?
Question 9: In the ammonium ion, N-H-4-plus,
which hybrid bonding orbitals of nitrogen are used?
Question 10: How does electronegativity change
across the third period of the periodic table from
sodium to chlorine?
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