How fast do tectonic plates move on Earth?
A) quite fast, but only during earthquakes
B) a few centimeters per century
C) a few centimeters per year
D) a few kilometers per century
E) about 1 mile per hour
C
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If the frequency of a traveling wave train is increased by a factor of three in a medium where the speed is constant, which of the following is the result?
a. amplitude is one third as big b. amplitude is tripled c. wavelength is one third as big d. wavelength is tripled
Saturn's bands, oval storm systems, and turbulent flow patterns are powered by:
A) convective motion and rapid rotation. B) the Greenhouse Effect. C) a liquid metallic hydrogen interior. D) the fusion in Saturn's core. E) the tides of Titan.
A piece of aluminum has density 2.70 g/cm3 and mass 770 g. The aluminum is submerged in a container of oil of density 0.650 g/cm3 . A spring balance is attached with string to the piece of aluminum. What reading will the balance register in grams (g) for the submerged metal?
a. 955 g b. 185 g c. 585 g d. 2 430 g e. 1 010 g
Pu is unstable. Which of the following nuclei might be a possible outcome of a single-step decay process from this nucleus?
A. 
B. 
C. 
D. 
E. 