WorksheetsHeat loss and gain
Total questions: 15
Worksheet time: 5mins
What is the R Value?
r value
measure of insulation's ability to resist heat traveling through it
The measure of the flow of transmittance through a material given a difference in temperature on either side.
What is the Unit of energy used in the United States?
Fahrenheit
Celcius
BTU
Newton
What does BTU stand for?
British Timing Units
British Thermal Units
British Thermic Units
British Thermodynamic Units
What is the U Factor
The measure of the flow of transmittance through a material given a difference in temperature on either side.
The measurement of thermal resistance used to indicate the effectiveness of insulation.
Difference in temperature between outside and inside conditions
total cooling/ heating load
What does Delta(T) mean?
coefficient of heat conductivity
Area
Total cooling/ heating load
difference in temperature between outside and inside conditions
Using the chart above, what is the value used to determine the R-Value of wall containing 6" brick?
0.20
0.80
1.20
6.00
Using the information above, what is the R-Value for the wall that would result in a total heat transmission load of 628.5 Btu/H?
Remember: Q′=UA(ΔT)
12
14
16
18
What value would be used for the area of a 16' x 8' wall containing 2 windows that measure 2' x 3'?
6 square feet
12 square feet
116 square feet
128 square feet
Using the information in the chart, determine the total transmission load for the wall. (Round your answer to the nearest hundredth and do not enter in any units.)
Remember: Q′=UA(ΔT)
(a)
Using the information in the chart, determine the total transmission load for the wall. (Round your answer to the nearest hundredth and do not enter in any units.)
Remember: Q′=UA(ΔT)
(a)
The greater the temperature difference, the faster heat flows
no clue
false
true
Heat moves through a building in three ways: by ______, by ______, and by _________
(a)
What is Thermal Contraction
The movement of particles.
A decrease in a materials volume when its temperature decreases
The movement of fluids in a cycle because of convection
A material through which thermal energy does not flow easily.
If an object loses heat energy, its temperature ___________.
decreases
increases
stay the same
In what direction does heat flow?
Heat will always flow from hotter object to colder object.
Heat will always flow from colder object to hotter object.
Heat will always flow from hotter object to hotter object.
