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How much heat (in calories) is needed to raise 140 grams of water from 20 degrees C to 25 degrees C?
The system is balanced and no energy transfer is taking place.
Thermal energy that is transferred from matter at a higher temperature to matter at a lower temperature is called heat.
from the warmer object to the colder object
700 calories
A and B have the same kinetic energy
1,750 calories
temperature
The juice is warmer than the ice. Heat travels in one direction until both items are the same temperature.
If two objects have different temperatures, heat will flow
The system is balanced and no energy transfer is taking place.
Thermal energy that is transferred from matter at a higher temperature to matter at a lower temperature is called heat.
from the warmer object to the colder object
700 calories
A and B have the same kinetic energy
1,750 calories
temperature
The juice is warmer than the ice. Heat travels in one direction until both items are the same temperature.
A measure of the average kinetic energy of the individual particles is called
The system is balanced and no energy transfer is taking place.
Thermal energy that is transferred from matter at a higher temperature to matter at a lower temperature is called heat.
from the warmer object to the colder object
700 calories
A and B have the same kinetic energy
1,750 calories
temperature
The juice is warmer than the ice. Heat travels in one direction until both items are the same temperature.
What does it mean for a system to be in 'equilibrium'?
The system is balanced and no energy transfer is taking place.
Thermal energy that is transferred from matter at a higher temperature to matter at a lower temperature is called heat.
from the warmer object to the colder object
700 calories
A and B have the same kinetic energy
1,750 calories
temperature
The juice is warmer than the ice. Heat travels in one direction until both items are the same temperature.
How much heat (in calories) is needed to raise 250 grams of water from 80 degrees C to 87 degrees C?
The system is balanced and no energy transfer is taking place.
Thermal energy that is transferred from matter at a higher temperature to matter at a lower temperature is called heat.
from the warmer object to the colder object
700 calories
A and B have the same kinetic energy
1,750 calories
temperature
The juice is warmer than the ice. Heat travels in one direction until both items are the same temperature.
How does a glass of juice become cold when you add ice to it?
The system is balanced and no energy transfer is taking place.
Thermal energy that is transferred from matter at a higher temperature to matter at a lower temperature is called heat.
from the warmer object to the colder object
700 calories
A and B have the same kinetic energy
1,750 calories
temperature
The juice is warmer than the ice. Heat travels in one direction until both items are the same temperature.
A fast-moving particle (A) and a slow-moving particle (B) collide. Which particle has more kinetic energy after the collision?
The system is balanced and no energy transfer is taking place.
Thermal energy that is transferred from matter at a higher temperature to matter at a lower temperature is called heat.
from the warmer object to the colder object
700 calories
A and B have the same kinetic energy
1,750 calories
temperature
The juice is warmer than the ice. Heat travels in one direction until both items are the same temperature.
How are thermal energy, heat and temperature related?
The system is balanced and no energy transfer is taking place.
Thermal energy that is transferred from matter at a higher temperature to matter at a lower temperature is called heat.
from the warmer object to the colder object
700 calories
A and B have the same kinetic energy
1,750 calories
temperature
The juice is warmer than the ice. Heat travels in one direction until both items are the same temperature.
Check it!