You place ice cream on a metal surface that is at a room temperature of 25 degrees Celsius. Which will happen when the ice cream and metal surface interact?(1 point)
Responses
Heat is transferred from the ice cream to the air, and the ice cream melts.
Heat is transferred from the ice cream to the air, and the ice cream melts.
Heat is transferred from the metal surface to the ice cream, and the ice cream melts.
Heat is transferred from the metal surface to the ice cream, and the ice cream melts.
Heat is transferred from the ice cream and metal surface to the air, and the ice cream melts.
Heat is transferred from the ice cream and metal surface to the air, and the ice cream melts.
Heat is transferred from the ice cream to the metal surface, and the ice cream melts.
7 answers
Heat is transferred from the metal surface to the ice cream, and the ice cream melts.
An iron block with a temperature of 250 degrees Celcius is placed into a container of water with a temperature of 50 degrees Celcius. Which statement best describes what will be observed in this experiment? (1 point)
Responses
Heat will flow from the iron block to the water until both are 250 degrees Celcius.
Heat will flow from the iron block to the water until both are 50 degrees Celcius.
Heat will flow from the water to the iron block until both are at the temperature of the container.
Heat will flow from the iron block to the block to the water until both reach a temperature somewhere between 500 degrees Celcius and 250 degrees Celcius.
Responses
Heat will flow from the iron block to the water until both are 250 degrees Celcius.
Heat will flow from the iron block to the water until both are 50 degrees Celcius.
Heat will flow from the water to the iron block until both are at the temperature of the container.
Heat will flow from the iron block to the block to the water until both reach a temperature somewhere between 500 degrees Celcius and 250 degrees Celcius.
Heat will flow from the iron block to the water until both reach a temperature somewhere between 500 degrees Celsius and 250 degrees Celsius.
A student drops substance A into substance B. What will happen?(1 point)
Responses
Both substances will reach 25 degrees Celsius due to heat exchange.
Both substances will reach 25 degrees Celsius due to heat exchange.
Substance A will become warmer as heat flows from substance A to substance B.
Substance A will become warmer as heat flows from substance A to substance B.
Both substances will reach 50 degrees Celsius due to heat exchange.
Both substances will reach 50 degrees Celsius due to heat exchange.
After some time passes, the substances will reach the same temperature.
Responses
Both substances will reach 25 degrees Celsius due to heat exchange.
Both substances will reach 25 degrees Celsius due to heat exchange.
Substance A will become warmer as heat flows from substance A to substance B.
Substance A will become warmer as heat flows from substance A to substance B.
Both substances will reach 50 degrees Celsius due to heat exchange.
Both substances will reach 50 degrees Celsius due to heat exchange.
After some time passes, the substances will reach the same temperature.
After some time passes, the substances will reach the same temperature.
When you add cold milk and hot chocolate, they will slowly blend as the cooler liquid mixes with the warmer liquid. Eventually, the heat will be spread out evenly through the entire liquid. Which statement best explains why this happens?(1 point)
Responses
Cold liquids rise and hot liquids sink making the liquids mix.
Cold liquids rise and hot liquids sink making the liquids mix.
The molecules of the two liquids form chemical bonds to spread energy.
The molecules of the two liquids form chemical bonds to spread energy.
The liquids attract each other because the densities of the liquids are the same.
The liquids attract each other because the densities of the liquids are the same.
Heat always moves from areas of higher temperature to areas of lower temperature.
Responses
Cold liquids rise and hot liquids sink making the liquids mix.
Cold liquids rise and hot liquids sink making the liquids mix.
The molecules of the two liquids form chemical bonds to spread energy.
The molecules of the two liquids form chemical bonds to spread energy.
The liquids attract each other because the densities of the liquids are the same.
The liquids attract each other because the densities of the liquids are the same.
Heat always moves from areas of higher temperature to areas of lower temperature.
Heat always moves from areas of higher temperature to areas of lower temperature.
23 answers