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WorksheetsThermodynamics
Total questions: 25
Worksheet time: 2hrs 5mins
Do molecules generally move faster at 45 C or 106 C?
45 C because molecules have more energy than in 106C
106 C because molecules have more energy than in 45C
106 C because molecules have less energy than in 45C
45C because molecules have less energy than in 106 C
When you place the metal in boiling water, heat flows from the _________ to the _______.
metal to the boiling water
bottom of the metal to the top half of the metal
bottom of the water to the top of the water
boiling water to the metal
YOU HAVE TIME!
How much energy is needed to raise the temperature of a 20.0g piece of copper from 15.0 degrees Celsius to 25.0 degrees Celsius? (The specific heat of copper is 0.385 J/g C)
20 X (25-15) =70 J
20 X .385 X (25-15)= 77 J
20 X .385 X (15-25)= 62 J
20 X .385 X (15-0)= 77 J
Specific Heat
the amount of energy it takes to raise one gram of a substance by one degree Celsius
The internal energy of an object
The measure of the kinetic energy of an object's molecules
Thermal Energy is...
The internal energy of an object
The temperature of a solid object
Heat transfer through a liquid
Temperature is ...
the measure of the average kinetic energy of the molecules of an object
The amount of thermal energy it takes to raise one gram of a substance by one degree Celsius.
An object’s internal energy
Conductor
A material that thermal energy travels through easily
A material that energy does NOT transfer through easily
Energy that travels in the form of electromagnetic waves
Insulator
A material the energy does NOT transfer through easily
A material that thermal energy travels through easily
The measure of the kinetic energy of an object’s molecules
Conduction
The transfer of thermal energy through solids
The transfer of thermal energy through liquids and gases
The transfer of thermal energy as electromagnetic waves
Convection
The transfer of thermal energy through liquids and gases
The transfer of thermal energy through solids
The transfer of thermal energy as electromagnetic waves
Celsius Scale
water freezes at 0 degrees and boils at 100 degrees
water boils at 212 degrees and freezes at 32 degrees
Water boils at 273 degrees and boils at 373 degrees
The variable for HEAT
Q
C
T
The variable for Specific Heat
Q
C
T
