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WorksheetsQuizz 3
Total questions: 20
Worksheet time: 10mins
The internal energy is related to the microscopic motion of the particles
True
False
The internal energy decresases when the temperature increases
True
False
The internal energy is represented by
U
Ei
Eu
The unit of the internal energy is :
Joules (J)
Watts (W)
The specific internal energy is represented by
u
U
Eu
The specific internal energy is the internal energy per unit of volume
True
False
The unit of the specific internal energy is
J/Kg
J/m3
J/s
The specific heat is
the amount of heat required to increase the temperautre of 1Kg of material by 1°C
the amount of heat required to increase the temperautre of 1m3 of material by 1°C
the amount of heat required to increase the temperautre of 10Kg of material by 20°C
The specific internal energy can be calculated by:
In a solid, the heat flux through a surface is:
The amount of heat passing through the surface during 1s
The amount of heat stored in the surface
The amount on heat passing through the surface
The heat flux is represented by:
Q
U
Hf
The unit of the heat flux is:
J
W
J/m2
The heat flux per unit area is represented by
q
U
Q
The unit of the heat flux per area is
J
W/m2
J/m2
W
The heat flux per unit area from point M to point N can be calculated using
Internal Energy
Fourier's law
Energy conservation
Fourier's law is given by:
In the Fourier's law the parameter (k) represents
Thermal conductivity
Specific heat
Internal energy
The unit of the thermal conductivity is
m.°CW
mW
°CW
The equation that allows for simulating heat transfer bu conduction can be obtained from
The physical law of energy conservation
The physical law of mass conservation
The physical low of linear momentum conservation
The equation that allows for simulating heat transfer by conduction is given by
