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Which investigation would best show the transfer of heat energy without any type of matter as a medium?(1 point)

Responses

an investigation of conduction using collisions between particles
an investigation of conduction using collisions between particles

an investigation of conduction through movement of particles within a solid
an investigation of conduction through movement of particles within a solid

an investigation of radiation using electromagnetic waves
an investigation of radiation using electromagnetic waves

an investigation of radiation using a current within a fluid
an investigation of radiation using a current within a fluid
Question 19
19. Convection ovens cook food more evenly than a standard thermal oven. Which statement explains how a convection oven works?(1 point)
Responses

Hot air is transferred through density differences when hot air rises and cool air sinks.
Hot air is transferred through density differences when hot air rises and cool air sinks.

Hot air is transferred when heat radiates from a thermal burner.
Hot air is transferred when heat radiates from a thermal burner.

Hot air is transferred through density differences when cool air rises and hot air sinks.
Hot air is transferred through density differences when cool air rises and hot air sinks.

Hot air is transferred through direct molecule contact.
Hot air is transferred through direct molecule contact.
Question 20
20. People use oven mitts to avoid getting burns when moving hot metal pans while cooking. Which physical property of the metal pan requires the use of an oven mitt when it is hot?(1 point)
Responses

Low thermal conductivity
Low thermal conductivity

High solubility
High solubility

High thermal conductivity
High thermal conductivity

Low magnetism
Low magnetism

1 answer

Here are the answers to the questions you've provided:

Question 18: Which investigation would best show the transfer of heat energy without any type of matter as a medium?

  • Answer: an investigation of radiation using electromagnetic waves

Question 19: Convection ovens cook food more evenly than a standard thermal oven. Which statement explains how a convection oven works?

  • Answer: Hot air is transferred through density differences when hot air rises and cool air sinks.

Question 20: People use oven mitts to avoid getting burns when moving hot metal pans while cooking. Which physical property of the metal pan requires the use of an oven mitt when it is hot?

  • Answer: High thermal conductivity

If you have any more questions or need further assistance, feel free to ask!