"How to Get More Light and Heat" Light PPT Courseware 2

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"How to Get More Light and Heat" Light PPT Courseware 2

Sun: Volume 1.4×1018 cubic kilometers, 1.3 million times the volume of the Earth. The surface temperature is more than 6,000 degrees, and the internal temperature is more than 20,000 degrees. The earth only receives one-billionth of the light and heat from the sun, but this is equivalent to providing 10 billion kilowatt-hours of electricity to the earth every year, which is billions of times the current total power generation in the world. It is the basic energy source for all activities on the earth.

Color and heat absorption of objects

experiment one,

Test of heat absorption of paper of different colors under sunlight

Record our experiments and analyze the data

What we found

The color of an object is related to its ability to absorb heat. Dark-colored objects absorb heat faster than light-colored objects.

Objects with rough surfaces absorb heat faster than objects with smooth surfaces

Direct sunlight, oblique radiation and heat absorption

What are the differences between objects of the same color illuminated at different angles relative to the sun?

Same conditions:

1) At the same time; 2) The same black color

Different conditions:

1) Horizontal to the ground; 2) Perpendicular to the ground; 3) Perpendicular to the sun

After analyzing and sorting out the information obtained, how do we explain the relationship between placement and temperature?

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For more information about the PPT courseware "How to Get More Light and Heat from Light", please click the "How to Get More Light and Heat from Light ppt" ppt tag.

"How to Get More Light and Heat" Light PPT Download:

"How to Get More Light and Heat" Light PPT download part one content: The new lesson explores that the sun is a huge burning fireball with an external temperature of more than 6,000 degrees and an internal temperature of more than 20,000 degrees. It continuously emits light day and night. And heat is radiated into space, which is the largest...

"How to Get More Light and Heat" Light PPT:

"How to Get More Light and Heat" Light PPT Part One: Color and Heat Absorption of Objects Why do more people wear light-colored clothes in summer and dark clothes in winter? Is there a relationship between the color of an object and its ability to absorb heat? Fold paper of different colors in half to make a bag shape...

"How to Get More Light and Heat" Light PPT Courseware 3:

"How to Get More Light and Heat" Light PPT Courseware 3 The Sun and its Sunlight The Sun: The volume is 1.41018 cubic kilometers, which is 1.3 million times the volume of the earth. The surface temperature is more than 6,000 degrees, and the internal temperature is more than 20,000 degrees. The earth only gets two billionths of the light and heat of the sun..

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Update Time: 2024-11-21

This template belongs to science courseware Fifth Grade Science Volume 1, Textbook Edition industry PPT template

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