The correct response is Due to convection.
On a hot summer day, the pavement heats up and warms the air above it. The warm air becomes less dense and rises, while cooler air moves in to take its place, creating a convection current.
Why does hot air rise from pavement on a hot summer day?(1 point)
Responses
Due to conduction
Due to insulation
Due to insulation
Due to radiation
Due to radiation
Due to convection
Due to convection
7 answers
Which investigation shows the transfer of heat energy in the absence of matter?(1 point)
Responses
Using electromagnetic waves to investigate radiation
Using electromagnetic waves to investigate radiation
Using particles in space colliding to investigate conduction
Using particles in space colliding to investigate conduction
Using a current through fluid to investigate radiation
Using a current through fluid to investigate radiation
Using particle movement through a solid to investigate conduction
Responses
Using electromagnetic waves to investigate radiation
Using electromagnetic waves to investigate radiation
Using particles in space colliding to investigate conduction
Using particles in space colliding to investigate conduction
Using a current through fluid to investigate radiation
Using a current through fluid to investigate radiation
Using particle movement through a solid to investigate conduction
The correct response is Using electromagnetic waves to investigate radiation.
Radiation is the transfer of heat energy through electromagnetic waves and does not require a medium (matter) to occur.
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 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 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 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 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 will continue to transfer energy until they are both 90°C.
Responses
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 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 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 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 will continue to transfer energy until they are both 90°C.
The correct response is The hot tea will transfer thermal energy into the air, and the energy transfer will continue until the tea is at room temperature.
Heat transfer occurs from the hot tea to the cooler air until thermal equilibrium is reached, which means the tea will cool down toward the room temperature.
Which option is an example of heat transfer by conduction?(1 point)
Responses
air conditioning cooling a room
air conditioning cooling a room
pavement heating up in the sun
pavement heating up in the sun
air getting warm from a radiator
air getting warm from a radiator
person getting warm from an electric blanket
Responses
air conditioning cooling a room
air conditioning cooling a room
pavement heating up in the sun
pavement heating up in the sun
air getting warm from a radiator
air getting warm from a radiator
person getting warm from an electric blanket
The correct response is person getting warm from an electric blanket.
Conduction is the transfer of heat through direct contact between materials. In this case, the electric blanket heats the person's body by direct contact, transferring heat directly through the surfaces in contact.