What is the thermosphere?
A) the lowest layer in the atmosphere
B) the part of the atmosphere that absorbs optical light
C) the part of the atmosphere that absorbs ultraviolet
D) the part of the atmosphere that absorbs X-rays
E) the highest layer in the atmosphere
D
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Electromagnetic radiation with a wavelength of 700 nm would be:
A) X-rays. B) red light. C) violet light. D) ultraviolet light. E) microwaves.
During an isothermal process, 5.0 J of thermal energy via the process of heating is removed from an ideal gas. What is the change in internal (thermal) energy of the gas?
A) 0 J B) 2.5 J C) 5.0 J D) 10 J
If you quickly run toward the orchestra at a concert, the frequency of the sound you hear will be
A) decreased. B) increased. C) neither of these
As the solar nebula contracts, it
A) cools due to condensation. B) reverses its direction of rotation. C) loses angular momentum. D) spins faster due to conservation of angular momentum. E) flattens out into the ecliptic plane around the Sun's poles.