D. Thermal Energy is the energy a system has because of the temperature it is at. At the moment, we are not concerned with the total amount of Thermal Energy an object has, but rather the Change in Thermal Energy that is associated with kinetic friction. The Change in Thermal Energy caused by kinetic friction will always be positive (you can't cool something down as a result of friction...) and is proportional to the magnitude of the frictional force and the distance slid. AErh:15"ASI Suppose a 5 kg block slides down a ramp tilted at 30° that has a coefficient of kinetic friction of uk = 0.2. Determine the force of kinetic friction acting on the block. Show your work. i. %3D ii. Using the formula for the Change in Thermal Energy, determine AEth as the block slides 1.5 m down the ramp. Show your work. Of the two objects involved in this frictional interaction, the block and the ramp, which experience an increase in Thermal Energy? Explain. iii.
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.
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