PHYS 123 EXAM 1 TAMU QUESTIONS WITH COMPLETE ANSWERS

A limitation for all electric automobiles is: A. Low energy density per battery. B.
Batteries explode more readily than gasoline.C. Electric energy is not useful for autos.
D. Electric motors are less efficient than gasoline motors.


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low energy density per battery

, Most of the hydrogen we use in the US comes from A. pockets of hydrogen gas
found underground B. hydrogen gas extracted from the atmosphere C. hydrogen
produced in nuclear reactors D. It is manufactured from fossil fuels and/or water.


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It is manufactured from fossil fuels and/or water




a gas heater warms a room mostly through A. convection B. conduction C. radiation
D. depletion


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convection




Which of the following contains the most energy per gram? A. TNT B. chocolate chip
cookies C. battery D. uranium


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uranium




if you double the energy content of a kilogram of gas, the temperature of the gas. A.
is unchanged B. increases by the square-root of 2 C. doubles D. is multiplied by 4


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