The Earth does not crash into the Sun because
A. Sun's gravitational field is weak at Earth's distance.
B. Earth has sufficient tangential speed.
C. Earth has less mass than the Sun.
D. the gravitational pull of other planets keeps the Earth in orbit.
Answer: B
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How would you classify the following material? milk
A) a suspension B) a heterogeneous mixture C) a solution D) an element E) a compound
According to the equation of state p = ?RT, if pressure remained constant and the temperature increased
A) the density would have to remain constant B) the density would have to increase C) the density would have to decrease D) the constant R would have to change
Which of the following is not true regarding hurricanes and tornadoes?
A) The pressure gradient is strong. B) The pressure at the center of the storm is very low. C) Tremendous amounts of condensation occur in the center of the storm. D) There is very limited wind shear.
What is the boiling point of water?
a. 212°F (100°C) b. 414°F (212°C) c. 32°F (0°C) d. 100°F (38°C)