Exploring Energy from the Sun and Heat Transfer

The video tutorial covers two main topics: energy in the atmosphere and heat transfer. It explains how sunlight interacts with the atmosphere, including absorption, reflection, and transmission. The concept of albedo is introduced, highlighting how different surfaces reflect or absorb sunlight. The tutorial also reviews three methods of heat transfer: conduction, radiation, and convection, providing examples for each. The video aims to enhance understanding of these fundamental concepts in atmospheric science and thermodynamics.

What are the two main topics covered in today's lesson?

• The water cycle and rock cycle

• Weather patterns and climate change

• Photosynthesis and cellular respiration

• Energy in the atmosphere and heat transfer

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

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What percentage of the Sun's energy makes it to the Earth's surface?

• 25%

• 90%

• 54%

• 75%

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NGSS.MS-ESS1-1

What happens to the energy from the Sun that does not reach the Earth's surface?

• It is converted into sound energy

• It is absorbed by the Earth's core

• It is absorbed or reflected by the atmosphere

• It is used in photosynthesis

What is albedo?

• The percentage of sunlight that reaches the Earth's surface

• The amount of sunlight absorbed by the atmosphere

• The process of heat transfer through waves

• The reflectivity of a surface

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NGSS.MS-ESS2-6

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Which surface has a higher albedo?

• Green grass

• Black asphalt

• Dark soil

• Fresh snow

What are the three methods of heat transfer?

• Conduction, absorption, and reflection

• Conduction, radiation, and convection

• Absorption, reflection, and transmission

• Radiation, reflection, and convection

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NGSS.MS-PS3-3

How is heat transferred through conduction?

• By the movement of a fluid

• Through direct contact of molecules

• By electromagnetic waves

• By the absorption of sunlight

Which method of heat transfer involves the movement of a fluid?

• Absorption

• Conduction

• Convection

• Radiation

How does radiation transfer heat?

• By reflecting sunlight

• Through direct contact of molecules

• By the movement of a fluid

• Through waves

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NGSS.MS-PS4-1

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What is an example of convection in everyday life?

• Heat from a campfire warming your hands

• A metal rod getting hot from a flame

• Water circulating in a pot to cook spaghetti

• Sunlight warming the Earth's surface

Tags

NGSS.MS-ESS2-6

NGSS.MS-PS3-4