Science Lesson 14(2)

How does solar energy reach the Earth?

• Conduction

• Convection

• Radiation

• Reflection

What is the cause of the seasonal difference in solar energy between the North and South?

• Conduction

• Convection

• Radiation

• Earth's tilt

Which region receives the most solar energy?

• The North

• The South

• The Equator

• The Poles

What is specific heat capacity?

• A. The amount of energy required to cool a substance by 1°C

• B. The amount of energy required to heat 1 kg of a substance by 1°C

• C. The amount of energy required to freeze a substance

• D. The amount of energy required to boil a substance

Which material has the highest specific heat capacity?

• A. Water

• B. Land

• C. Air

• D. Metals

How does the land and water continue to heat the air at night?

• A. Conduction

• B. Convection

• C. Radiation

• D. Reflection

What is albedo?

• A. The amount of energy required to heat a substance

• B. The amount of energy required to cool a substance

• C. The reflectivity of a material

• D. The absorbency of a material

What type of material has high albedo?

• A. Dark materials

• B. Black materials

• C. White materials

• D. Grey materials

How does the albedo of a material affect its temperature?

• A. High albedo means low reflectivity and high absorption

• B. Low albedo means low reflectivity and low absorption

• C. High albedo means high reflectivity and low absorption

• D. Low albedo means high reflectivity and high absorption

What type of material gets much hotter in the sun because it absorbs more heat?

• A. White materials

• B. Light materials

• C. Grey materials

• D. Dark materials