RENEWABLE ENERGY Presentation

Open Ended

What are some challenges engineers might face when building solar and wind energy systems?

Multiple Choice

Why is it important to develop renewable energy systems such as solar and wind power?

• They help reduce greenhouse gas emissions and combat climate change.

• They are more expensive than fossil fuels.

• They require no maintenance.

• They are only useful in certain countries.

Multiple Choice

What are some of the engineering grand challenges related to renewable energy mentioned in the slides?

• Provide energy from fusion, develop carbon sequestration methods, make solar energy economical

• Engineer better medicines, advance personalized learning, enhance virtual reality

• Prevent nuclear terror, manage the nitrogen cycle, secure cyberspace

• Restore and improve urban infrastructure, provide access to clean water, engineer the tools of scientific discovery

Multiple Choice

Which types of engineers are commonly involved in developing renewable energy technology and plants?

• Electrical, Controls, Mechanical, Civil, Materials, Aerodynamics

• Chemical, Aerospace, Software, Biomedical

• Petroleum, Mining, Geological, Nuclear

• Environmental, Agricultural, Marine, Textile

Open Ended

Describe the main objective of the lab activity involving solar and wind power.

Multiple Choice

Which of the following are examples of renewable energy sources?

• Solar and wind

• Coal and oil

• Natural gas and nuclear

• Petroleum and diesel

Fill in the Blanks

The unit used to express power is

.

Open Ended

Explain how power and energy are related, and provide an example of each from everyday life.

Open Ended

Describe the process by which wind energy is converted into electricity in a wind turbine.

Fill in the Blanks

The area swept out by the turbine blades is calculated using the formula Area =

Multiple Select

Which of the following are needed to calculate the power generated by a wind turbine according to the formula shown?

• Density of air

• Wind speed

• Blade length

• Number of turbines

Open Ended

What factors go into choosing where to build a wind farm?

Open Ended

What are some challenges specific to installing wind turbines offshore compared to on land?

Open Ended

Explain why solar energy, despite its high potential, provides less than 1% of the world's total energy.

Multiple Choice

Which energy source has the highest global energy potential according to the diagram?

• Solar

• Wind

• Coal

• Oil

Multiple Choice

Which of the following statements about Photovoltaic (PV) plants and Solar Thermal Plants is correct?

• PV plants use mirrors to concentrate sunlight.

• Solar thermal plants convert sunlight directly into electricity.

• PV plants convert solar energy directly into electrical energy.

• Solar thermal plants use photovoltaic cells.

Multiple Select

Select all correct statements about how a photovoltaic (PV) solar cell works.

• Photons from sunlight generate electron flow in the cell.

• P-type silicon provides positive holes.

• The cell generates alternating current (AC).

• Metallic conducting strips collect the generated current.

Open Ended

Direct noontime sunlight has about 1000W per square meter of power. If a PV array is 20% efficient, how large an array of solar panels do you need to generate 3000W at noon?

Fill in the Blanks

A simple silicon PV cell is like a

battery.

Fill in the Blanks

If you had a 9 x 8 array of ~0.5V PV cells in series, what would be the approximate panel voltage?

Open Ended

How is solar energy converted to grid energy?

Open Ended

How could you maximize energy capture where you live?

Multiple Choice

Which of the following factors affect the amount of solar energy that can be captured at a location?

• Season

• Weather

• Time of day

• All of the above

Multiple Select

Which of the following items are included in both the teacher kit and the student kit for the renewable energy activity?

• Solar Panel

• Generator

• Jumper Wires

• All of the above

Fill in the Blanks

The long leg of the LED must be connected to the

wire from the solar cell.

Multiple Choice

Which of the following is a major focus of the Renewable Energy lesson?

• Extracting power from fossil fuels

• Extracting power from wind and the sun

• Building nuclear power plants

• Improving battery storage technology

Open Ended

After learning about renewable energy and building solar & wind systems, what is one question you still have or a topic you would like to explore further?