CUNY City College of New York Kinetic Energy and Potential Energy Questions

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Instructions:

All questions are worth 20 points. Question 1 is compulsory. Answer any 4 questions from questions 2 to 9.

Cheating will disqualify you from the exam and will result in action as per the University policies.

All subsections to answer a question must be clearly shown. Partial points are awarded to you if you show that you understand the question. Make sure to submit neat and legible work. I should not have to fish out answers.

All the best!

Question 1 is compulsory!

a. You have noticed a sudden spike (increase) in your water bill. Suggest how you can use the scientific process to address and solve the problem. The subsections of the scientific process must be clearly mentioned.

b. Suggest at least three possible solutions to the problem based on the principles of sustainability without compromising on your daily necessary usage of water. 20 points

a. Define Energy. 20 points
b. What are the two kinds of Energy? Explain giving examples.
c. What is the Law of Conservation of Energy? If energy cannot be destroyed or created, why should energy be conserved?

a. Explain the distribution of birth rates in the world.2.5 + 10 + 2.5 + 5 = 20 points
b. Is the distribution even in developed versus developing nations? If not, explain why?
c. Fill in the blanks
Population change = (________ + ___________ ) − ( _____________ + _____________ )
d. What can you do to help with population control? Mention at least three personal strategies.

4. Explain what is the IPAT Model for population dynamics. Compare examples from a less developed and a more developed country and use the IPAT model to explain the impact on the environment.20 points

a. Give three reasons each with explanations why China’s one child policy helped control their population whereas India’s family planning program almost failed. 15 + 5 = 20 points

Reasons for success of China’s one child policy
i.

ii.

iii.

Reasons for failure of India’s family planning program
i.

ii.

iii.

b. In your opinion how should governments tackle population growth? What model would you suggest?

a. List three benefits and drawbacks each of urbanization. 20 points
b. What is urban sprawl (suburbs)? Why is it a problem? Explain giving 5 reasons.
c. What is floating population in a city?

a. Benefits
i.

ii.

iii.

Drawbacks
i.

ii.

iii.

Mention five ways by which homes and other buildings can become more energy efficient and green.
20 points

i.

ii.

iii.

iv.

v.

Describe how the following are used as sources of usable energy (in other words, how is useful energy trapped or generated from the following). 20 points

Direct solar energy

Hydropower

Wind

Biomass Power

9. a. What is the difference between monoculture and polyculture?
b. What are three major negative impacts of monoculture?
c. What are CAFO’s? Mention 5 reasons how CAFO’s negatively affect society?

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