Inside - Rochester Museum and Science Center ... Wind Turbine Lab: (Producing Energy) Overview:...

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Transcript of Inside - Rochester Museum and Science Center ... Wind Turbine Lab: (Producing Energy) Overview:...

  • the power • the energy • the choices IN YOUR HANDS

    Inside:  Essential Questions for student inquiry

     Useful Concepts for the exhibition

     Online Resources for the classroom

     Correlation to standards

     Student worksheets to use in the exhibition

  • What is energy?

    Energy in the most basic sense is the ability to do work. Energy is in everything, whether it is someone

    running down the street or a campfire in the woods. You can find energy in a multitude of places. It is what

    allows a person to do things like run, solve math problems, or draw a picture. Energy also allows us to turn

    on lights, drive cars, and keep food cold.

    What are the different forms/types of energy?

    There are many different forms of energy and there are two types of energy that they each fall under.

    These two types of energy are potential and kinetic energy. Potential energy is stored energy, and the

    forms of energy that fall under it are chemical energy, mechanical energy, nuclear energy, and

    gravitational energy. Kinetic energy is the energy of motion, such as that found in waves and molecules.

    The energy forms that fall under kinetic energy are light energy, heat energy, sound energy, and electrical

    energy. Each form of energy is important in everyday life.

    What is an energy flow?

    An energy flow is the conversion of energy from one form to another; it can be one conversion or more.

    Energy is neither created nor destroyed; it is converted. When we light and burn a candle there is a

    conversion of energy from chemical energy stored in the match, to kinetic energy when the match is

    struck, back to chemical energy when the match is producing fire, to chemical energy within the candle

    when the wick is lit, to both light and heat energy from the flame. Not only can these energies be

    converted, but multiple types of energy can result from one conversion.

    What are the different types of energy sources and how are they different?

    Energy sources exist in the following categories; nonrenewable and renewable energy, as well as electric

    and hydrogen. Nonrenewable energy sources are those that can’t be renewed or reused. Nonrenewable

    energy sources include petroleum, natural gas, coal, and uranium. Renewable energy sources are those

    that can be renewed or reused, such as biomass, geothermal, hydropower, solar, and wind. Each plays a

    role in the production of today’s energy.

    How is energy important in the everyday lives of people?

    Energy is what runs the world we live in. Whether it be energy stored in an apple that someone eats or a

    fusion reaction in a nuclear plant. Without energy we couldn’t do any of the things we currently do, and

    without all of the energy sources we use we couldn’t power the world we live in.

  • Positive Energy Interactions and Negative Energy Interactions

    Positive and negative energy interactions are based on how energy is used by people. Positive energy

    interactions result in something good, such as having a fire to cook food and keep warm in the woods.

    Negative energy interactions result in something bad, such as having a fire in the house that is not controlled

    and ends up damaging the house. People can change their behavior and make good decisions on how to

    interact with energy so that their interactions are positive. Sometimes these interactions are out of our

    control, such as when lightning strikes a house and causes a fire. However, the energy interactions we have

    daily are important to our lives and can often have a positive effect if good decisions are made.

    Energy Conversions and Using Energy

    Energy can be converted from one form to another, which is important because it allows people to use

    energy in different ways. People use sound energy when they sing, light energy when they use a flashlight,

    and chemical energy when they eat food. Each form of energy is important in a different way, and the ability

    to convert one kind of energy into another allows us to do certain processes every day. Energy is neither

    created nor lost, and therefore can only be converted from one form of energy to another, or many others.

    Energy conversions are everywhere if you look carefully.

    Energy Sources and their Environmental Impacts

    There are many types of energy sources that exist currently, all of which generally fall under two categories;

    nonrenewable and renewable. The current energy problem that exists is that the demand for energy will one

    day exceed the supply, in particular with oil and oil products. Many people believe that no one energy source

    will take care of this dilemma and that a marriage of multiple sources will need to be made in order to meet

    demand. These energy sources all have various impacts; however one of the most important is that of the

    environment. Environmental impacts such as CO2 emissions have played a major part in the past with

    pollution, illness, and general destruction of the environment. It’s important to take all impacts into account

    so that we can make smart decisions when choosing energy sources.

    Energy Choices for the Future

    Energy choices both include those made on a bigger scale, such as whether to grant funding for hydrogen

    research, and those on a smaller scale, such as whether to use an LED light bulb in your home instead of a

    fluorescent bulb. Energy choices for the future will change as new technology and alternative energies come

    into existence. Energy is a constantly evolving field and will need to address the issues that will come with an

    ever-increasing population, results of pollution and energy impacts.

  • The Grid: (Using Energy)

    Overview: Learn about “the grid” and how energy gets from the source to your home.

    Exploration:

     Have the students examine “the grid” to see how it works. Have them consider the many different energy

    sources that are used to create the energy that travels the grid.

    Guiding questions:

     How does energy get from the source to your home?

     Why is “the grid” so important in the everyday lives of people?

    History of the Motor: (Using Energy)

    Overview: Learn about the past, present, and possible future of the automobile engine from George Seldon’s

    patent model combustion engine to the fuel cell cars being developed today.

    Exploration:

     Have the students examine the history of the motor to learn about the evolution of automobiles through

    time, taking into consideration the technologies and initiatives that have driven these improvements and

    changes.

    Guiding questions:

     How have improvements in technology and our understanding of energy changed the motor and

    automobile over time?

    Evolution of the Incandescent light bulb: (Using Energy)

    Overview: Learn about the evolution of the incandescent light bulb from Thomas Edison’s first practical light

    bulb in 1880 up to the current initiative to phase out the sale of most incandescent light bulbs.

    Exploration:

     Have your students read about the evolution of the incandescent light bulb and check out the different

    types in the case spanning from 1890 to 2010. Also, if the possible, check out further information on the

    development of the incandescent light bulb using the QR code on the diagram.

    Guiding Questions:

     How has the incandescent light bulb evolved over time?

     Why are incandescent light bulbs no longer in widespread use?

    The ENERGIZE it! Exhibition uses interactives, historical artifacts, dioramas, and more to engage all visitors. This

    guide lists each of these exhibit components and how they can be used to supplement an individual’s visit.

  • Wind Turbine Lab: (Producing Energy)

    Overview: There are many ways to harness motion to generate electricity. Wind turbines transfer the motion

    of the wind into mechanical energy and then electrical energy that we use to power factories and homes.

    Exploration:

     Students can experiment with different turbine designs to determine which can generate the most energy

    when held in a wind tunnel. They can vary the amount of wind hitting the turbine by changing the angle

    and distance from the source and then read the electricity produces in volts.

    Guiding Questions:

     How does captured wind energy turn into electricity?

     How do wind turbines work and how do different designs influence efficiency?

    Bicycle Generators: (Producing Energy)

    Overview: Two bikes are set up so that when students pedal they generate electricity that in turn powers a

    fan to lift a cube into the air.

    Exploration:

     Students can pedal a stationary recumbent bicycle to generate electricity. The electricity is used to power a

    fan that lifts a spinning cube into the air. The harder you pedal the more electricity you generate and the

    higher the cube rises. Readouts also show volts and watts produced by pedaling. There are two bike

    generators side-by-side so friends can race each other.

    Guided Questions:

     What is the energy flow present in this interac