During a phase change the temperature of a system will be ________ as heat is added.
What will be an ideal response?
constant
the same
uniform
unchanged
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In the Sun, rising currents of hot gas below the photosphere cause granulation
a. True b. False Indicate whether the statement is true or false
A ball is thrown upward and caught when it returns. When air resistance affects the ball, compared with the initial upward speed, the speed of the ball when caught is
A) less. B) the same. C) more.
The fact that desert sand becomes very hot in the day and very cold at night is evidence that sand has a
A) low specific heat capacity. B) high specific heat capacity. C) none of the above
Which of the following is FALSE?
a) Light, radio, ultraviolet, and gamma rays are all forms of electromagnetic radiation. b) Emission spectra are characterized by narrow, bright lines of different colors. c) An absorption spectrum appears as a continuous spectrum interrupted by a series ofdark lines. d) The energy of a photon is inversely proportional to the wavelength of the radiation. e) The wavelengths of the emission lines produced by an element are different from thewavelengths of an absorption line produced by the same element.