Wind Energy and AP Exam Concepts

The video tutorial guides students through solving a 2018 AP Environmental Science free response math question. It covers calculating the electricity generation needed to meet 80% of electrical demand, determining revenue from wind turbines, and calculating the operating hours required for the turbines. The tutorial emphasizes the importance of units and dimensional analysis, and explains changes in the AP exam format starting in 2020.

What is the significance of including units in your calculations during the AP Environmental Science exam?

• Units are only needed for the final answer.

• Units are not necessary for calculations.

• Units can be used to skip steps in calculations.

• Units help in understanding the context of the problem.

How much electricity in megawatt hours does the wind project need to generate annually to meet 80% of the demand?

• 0.8 million megawatt hours

• 1.2 million megawatt hours

• 2 million megawatt hours

• 1.6 million megawatt hours

What change was introduced in the AP Environmental Science exam starting in 2020?

• The exam included more theoretical questions.

• Use of calculators was allowed.

• The exam was made shorter.

• The exam was conducted online.

How many kilowatt hours are equivalent to one megawatt hour?

• 10,000 kilowatt hours

• 1,000 kilowatt hours

• 100,000 kilowatt hours

• 100 kilowatt hours

What is the revenue generated if the wind project provides 80% of the electrical demand, given the rate is 20 cents per kilowatt hour?

• $80 million

• $640 million

• $160 million

• $320 million

What is the concept of 'no double jeopardy' in AP exams?

• Students are not penalized for using incorrect answers in subsequent parts if used correctly.

• Students can choose which questions to answer.

• Students can skip questions without penalty.

• Students can retake the exam if they fail.

How many hours must the wind turbines operate to provide 80% of the annual electrical demand?

• 2,000 hours

• 1,000 hours

• 4,000 hours

• 3,000 hours