Which of the following statements demonstrates radiation of heat?(1 point)
Responses
Brandie burns her feet on the concrete when she gets out of the swimming pool.
Brandie burns her feet on the concrete when she gets out of the swimming pool.
Chase touches the lid of a pot on the stove, burning his hand.
Chase touches the lid of a pot on the stove, burning his hand.
A hot air balloon rises because a burner heats air which rises, lifting the balloon.
A hot air balloon rises because a burner heats air which rises, lifting the balloon.
Mr. Smith keeps his baby chicks warm on a cold night by turning on an infrared heat lamp bulb in their coop.
Mr. Smith keeps his baby chicks warm on a cold night by turning on an infrared heat lamp bulb in their coop.
Too many of which type of ray will give a person a sunburn?(1 point)
Responses
radio waves
radio waves
ultraviolet
ultraviolet
visible light
visible light
infrared
ultraviolet
Which makes precipitation and runoff possible?(1 point)
Responses
vapor
vapor
gravity
gravity
radiant energy
radiant energy
groundwater
The statement that demonstrates radiation of heat is: "Mr. Smith keeps his baby chicks warm on a cold night by turning on an infrared heat lamp bulb in their coop."
The statement that demonstrates radiation of heat is:
"Mr. Smith keeps his baby chicks warm on a cold night by turning on an infrared heat lamp bulb in their coop."
Explanation of how to get the answer:
To determine which statement demonstrates radiation of heat, we need to understand the concept of radiation. Radiation is the transfer of heat energy through electromagnetic waves, without the need for a medium (such as air or water). It occurs when heat is transferred from a hotter object to a cooler object through the emission of infrared radiation.
Looking at the given statements, we can see that the first two involve direct contact with a heated surface (Brandie's feet on the concrete and Chase touching the pot lid), which represents conduction rather than radiation.
The third statement mentions how a hot air balloon rises due to the heating of the air, but it does not explicitly describe the mechanism of radiation. Instead, it suggests convection, as the heated air expands and becomes less dense, causing it to rise and lift the balloon.
On the other hand, the fourth statement involves the use of an infrared heat lamp bulb, which emits infrared radiation. This is a clear example of heat being transferred through radiation, making it the correct answer.