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

Question

Responses

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 a current within a fluid
an investigation of radiation using a current within a fluid

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

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

Answer 1

1. The investigation that would best show the transfer of heat energy without any type of matter as a medium is: an investigation of radiation using electromagnetic waves.

2. The statement that explains how a convection oven works is: Hot air is transferred through density differences when hot air rises and cool air sinks.