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WorksheetsThermal Energy
Total questions: 20
Worksheet time: 31mins
In the formula, which quantity represents the specific heat?
c
m
Q
deltaT
The specific heat of copper is 0.385 J/g·°C. Which equation would you use to calculate the amount of heat needed to raise the temperature of 0.75 g of copper from 7°C to 29°C?
Q = 0.385 J/g·°C x (29°C – 7°C)
Q = 0.75 g x 0.385 J/g·°C x 29°C
Q = 0.75 g x 0.385 J/g·°C x 22°C
Q = 0.75 g x 0.385 J/g·°C x 7°C
What property of an object is related to the average kinetic energy of the particles in that object?
conductivity
temperature
specific heat
mass
As the temperature of an object rises, so does the
kinetic energy of the object.
mass of the object.
potential energy of the object.
thermal energy of the object.
What is the change in thermal energy if 5 kg of aluminum are heated from 10°C to 20°C?
-4.5x104 J
4.5x104 J
-4.5x10-4 J
4.5x10-4 J
7600 J of energy are added to a 1 kg block of brass that is at a temperature of 20°C. What temperature will it
be after the energy is added?
0 C
20 C
40 C
400 C
Your friend tells you that sea water should have the same specific heat as water because both are water. You
decide to test whether this is true, and convince your parents that they need to take you to California so that
you can test it. You collect 5 kg of sea water, initially at room temperature (24°C). You input 200,000 J of
thermal energy to the sample, and the temperature rises to 34°C. What is the specific heat of sea water?
4200 J/kg°C
4000 J/kg°C
3800 J/kg°C
4400 J/kg°C
What is the change in Thermal Energy if a 3 kg sample of copper, initally at 10 degrees C, ends at 0 degrees C?
12000J
-12000J
20000J
-20000J
When 66,300 J of energy are added to 10 kg of an unknown substance at 10°C, it heats up to 27°C. What is
the substance?
Glass
Mercury
Zinc
Iron
Identify the process shown in the picture
Melting
Freezing
Evaporation
Condensation
Identify the process shown in the picture
Condensation
Evaporation
Melting
Freezing
