KIDS QUIZ
SPACE AND THE SOLAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Solar radiation heated the driveway and then heat transferred to the crayon by conduction.
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Solar radiation heated the driveway and then heat transferred to the crayon by radiation.
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Solar convection heated the driveway and then heat transferred to the crayon by radiation.
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Solar convection heated the driveway and then heat transferred to the crayon by conduction.
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Detailed explanation-1: -A crayon placed on a dark driveway in bright sunlight melted into a colorful puddle. What caused the crayon to melt? Solar radiation heated the driveway and then heat transferred to the crayon by conduction.
Detailed explanation-2: -Thermal radiation is the transfer of energy via electromagnetic waves. Electromagnetic waves carry energy across space. Thermal radiation is the way that the Sun heats the Earth. The Sun’s energy travels in waves through space, not through atoms or molecules.
Detailed explanation-3: -Also, how did the air near the hot plate get hot in the first place? It got hot primarily because it is in contact with the hotplate (conduction), and because the air may absorb some of the energy radiating from the hot plate (radiation).
Detailed explanation-4: -The heating of the Earth by the Sun is an example of transfer of energy by radiation. The heating of a room by an open-hearth fireplace is another example. The flames, coals, and hot bricks radiate heat directly to the objects in the room with little of this heat being absorbed by the intervening air.
Detailed explanation-5: -this case, sunlight is heating the sand on the beach. This is an example of convection, which is a physical process that occurs when heat is transferred from a hotter object to a colder object."]