Distinguish between the concepts of thermal energy, temperature, and heat
What will be an ideal response?
Answer: Thermal energy, measured in calories or joules, is the energy something has by virtue of the molecular motion of its molecules. The more molecular kinetic energy, the more thermal energy. Temperature relates to the translational part of this kinetic energy per molecule in a substance, measured in degrees (or kelvins). Heat is thermal energy in transit; the thermal energy that transfers from one place to another by virtue of a temperature difference. Heat, like thermal energy, is measured in calories or joules.
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Molecular Rotation: For a diatomic quantum mechanical rotator, the energy difference between adjacent energy levels
A. increases as L increases. B. decreases as L increases. C. is constant for all L. D. varies randomly as L increases.
Two coherent sound waves will destructively interfere when the path difference is the wavelength times what?
A) half an even integer B) an integer C) half an odd integer D) an odd integer
Tidal forces in general are the result of
A) two or more sources of gravitation. B) a combination of any kind of forces acting on a body. C) unequal forces acting on different parts of a body. D) the inverse-square law. E) unequal fluid flow.
A car is moving with a constant speed along a circular track. The car is therefore not accelerating
Indicate whether the statement is true or false