Air currents are sensitive to changes in pressure and temperature. In general, air moves from regions of
A) high pressure to regions of low pressure.
B) low pressure to regions of high pressure.
C) high temperature and low pressure to regions of low temperature and high pressure.
D) low temperature and high pressure to regions of high temperature and low pressure.
Answer: A
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The terrestrial planets in our solar system are
A) Mercury, Venus, Earth, and Mars. B) Jupiter, Saturn, Uranus, and Neptune. C) Pluto and Eris. D) Mars, Jupiter, Saturn, Uranus, and Neptune.
All jovian planets have rings around their equators and at least eight moons
Indicate whether the statement is true or false
An ideal gas is at a pressure 1.00 × 105 N/m2 and occupies a volume 2.00 m3. If the gas is compressed to a volume 1.00 m3 while the temperature remains constant, what will be the new pressure in the gas?
A) 2.00 × 105 N/m2 B) 4.00 × 105 N/m2 C) 1.00 × 105 N/m2 D) 0.500 × 105 N/m2 E) The answer depends on the mass of the gas particles.
A hydrogen atom is in its n = 2 excited state when its electron absorbs a photon of energy 8.5 eV. What is the energy of the resulting free electron?
The lowest level energy state of hydrogen is -13.6 eV. (h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J) A) 5.1 eV B) 6.6 eV C) 6.9 eV D) 7.6 eV