The Intensity of Sunlight Falling on the Earth Is About

question 17

Multiple Choice

The intensity of sunlight falling on the earth is about 1.4 kW/m² (before any gets absorbed by our atmosphere) .At what rate does the sun emit light energy? (The earth-sun distance = 1.5 × 10⁸ km and the earth's radius = 6.4 × 10³ km.)

• A) 4.0 × 10²⁶ W
• B) 3.2 × 10²² W
• C) 7.2 × 10¹⁴ W
• D) 7.6 × 10⁸ W

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Definitions:

Intelligence Quotient

A measure of a person's cognitive abilities in relation to their age group, typically assessed through standardized tests.

William Stern

A German psychologist best known for developing the concept of the intelligence quotient (IQ).

Alfred Binet

A French psychologist who, along with Theodore Simon, developed the first practical IQ test, the Binet-Simon scale, pioneering intelligence testing.

Individual Differences

Variations among individuals in their behaviors, abilities, experiences, or preferences, acknowledging that every person is unique.