Part A Tangential velocity is velocityA) parallel to the surface of the Earth.B) perpendicular to the surface of the Earth.C) attributed to satellites moving in any direction Part B Glass in a florist's greenhouse blocks radiation ofA) all frequencies. B) high frequency. C) low frequency. Part c The usefulness of a bimetallic strip is due to differences inA) conductivities of metals.B) expansions of metals.C) heat capacities of metals. part D Consider two planets in space that gravitationally attract each other. If the mass of both planets is doubled, and the distance between them is also doubled, then the force between them isA) half as much.B) one-quarter.C) four times as much.D) twice as much.E) none of the above
Energy transfer
The flow of energy from one region to another region is referred to as energy transfer. Since energy is quantitative; it must be transferred to a body or a material to work or to heat the system.
Molar Specific Heat
Heat capacity is the amount of heat energy absorbed or released by a chemical substance per the change in temperature of that substance. The change in heat is also called enthalpy. The SI unit of heat capacity is Joules per Kelvin, which is (J K-1)
Thermal Properties of Matter
Thermal energy is described as one of the form of heat energy which flows from one body of higher temperature to the other with the lower temperature when these two bodies are placed in contact to each other. Heat is described as the form of energy which is transferred between the two systems or in between the systems and their surrounding by the virtue of difference in temperature. Calorimetry is that branch of science which helps in measuring the changes which are taking place in the heat energy of a given body.
Part A
Tangential velocity is velocity
A) parallel to the surface of the Earth.
B) perpendicular to the surface of the Earth.
C) attributed to satellites moving in any direction
Part B
Glass in a florist's greenhouse blocks
A) all frequencies.
B) high frequency.
C) low frequency.
Part c
The usefulness of a bimetallic strip is due to differences in
A)
B) expansions of metals.
C) heat capacities of metals.
part D
Consider two planets in space that gravitationally attract each other. If the mass of both planets is doubled, and the distance between them is also doubled, then the force between them is
A) half as much.
B) one-quarter.
C) four times as much.
D) twice as much.
E) none of the above
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