Why does hot air rise from pavement on a hot summer day?(1 point)
Responses
Due to convection
Due to convection
Due to conduction
Due to conduction
Due to radiation
Due to radiation
Due to insulation
Due to conduction.
Which investigation shows the transfer of heat energy in the absence of matter?(1 point)
Responses
Using particles in space colliding to investigate conduction
Using particles in space colliding to investigate conduction
Using particle movement through a solid to investigate conduction
Using particle movement through a solid to investigate conduction
Using a current through fluid to investigate radiation
Using a current through fluid to investigate radiation
Using electromagnetic waves to investigate radiation
Using electromagnetic waves to investigate radiation.
Simone has a mug of hot tea at a temperature of 90°C. She sets the mug on a counter in a room with an air temperature of 30°C. What is most likely to happen to the temperature of the hot tea?(1 point)
Responses
The hot tea will transfer thermal energy into the air, and the energy transfer will continue until the tea is at room temperature.
The hot tea will transfer thermal energy into the air, and the energy transfer will continue until the tea is at room temperature.
The air will transfer thermal energy into the tea, and the energy transfer will continue until the tea is at room temperature.
The air will transfer thermal energy into the tea, and the energy transfer will continue until the tea is at room temperature.
The air will transfer thermal energy into the tea and will continue to transfer energy until they are both 90°C.
The air will transfer thermal energy into the tea and will continue to transfer energy until they are both 90°C.
The hot tea will transfer thermal energy into the air and will continue to transfer energy until they are both 90°C.
The hot tea will transfer thermal energy into the air, and the energy transfer will continue until the tea is at room temperature.
Due to convection
The correct answer is: Due to conduction.
Explanation: On a hot summer day, the pavement absorbs the heat from the sun. This results in the pavement becoming very hot. When air comes into contact with the hot pavement, it also gets heated through conduction. As the heated air molecules gain energy, they become less dense and start to rise. This creates an upward movement of hot air from the pavement, leading to the phenomenon of hot air rising.