Show:
Solving heat problems/formula
Vocabulary
Heat/Energy
potpourri
Thermodynamics
100
as the kinetic energy of the molecules in a substance increases, the
What is temperature of substance increases
100
The amount of energy required to raise the temperature of 1 gram of a substance by 1 degree Celsius
specific heat
100
energy (heat)=(mass)(specific heat)(x)? What is x?
What is change in temperature
100

The cycle of a 4 stroke engine.

What is intake, compression, ignition, power stroke, and exhaust?

100

what is thermodynamics?

What is the study of the effects of work,heat and energy on a system.

200
a block of copper (specific heat=.385) requries 625,000 J of thermal energy to change in temperature from 27C to 139C. WHAT IS THE MASS OF THE COPPER BLOCK?
What is 14,494 g
200
thermal energy
What is a substance is the total energy of all its atoms and molecules.
200
work is transfer of
What is energy
200

Water is slow to change temperature and contributes to this type of climate.

what is mediterranean?


200
What would happen if an object reached absolute zero.
All movement would cease.
300
temperature is
proportional to the average kinetic energy of molecules
300
absolute zero
where all movement ceases (0 K)
300
If a cup of coffee is 80 degrees Celsius and an ice cube is added, how does heat flow?
from the coffee into the ice cube
300

Water does this when it is warmed or cooled from 4 degrees C.

What is expand?

300
3rd law of Thermodynamics
What is no system can reach absolute zero
400
what is the specific heat of substance that requries 99,100 J of thermal energy to heat 3470 g of this substance from 11C to 45C
What is .839
400
heat
What is a form of energy that is transferred by a difference in temperature
400
if the mass of a moving object is doubled,thermal energy will?
double
400

Lake Tahoe is too deep for the surface to cool to 4 degrees, sink, cool, sink, cool, sink and so on... to cause this.

What is freeze?


400
__________ lost= ___________ gained because energy is conserved
What is heat and heat
500
convert 305 K to the Celsius scale
What is 32C
500
1st law of thermodynamics
Energy lost by a system must be gained by something else in the system
500
When an object is heated it tends to ____________.
expand
500

2 oreo cookies contain 140 of these.

Calories or kilocalories

500

Heat will always, naturally flow from a hot object to a cold object.

What is the Second Law of Thermodynamics?