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Energy Aboard Ship. What is Energy?. This module will emphasize the transformation of energy into useful forms. Find out more about energy . Matter and Energy. Matter takes up space. Matter can also be changed into energy .

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Presentation Transcript
what is energy
What is Energy?

This module will emphasize the transformation of energy into useful forms.

Find out more about energy.

matter and energy
Matter and Energy

Matter takes up space.

Matter can also be changed into energy.

Hear Einstein explain matter and energy in his own words.

matter and energy4
Matter and Energy

Energy is the ability to do work.

Force x Distance = Work

Read an online book about energy.

kinetic vs potential
Kinetic vs. Potential
  • Potential energy is stored energy.
  • Kinetic energy involves motion.

Learn about the different forms and sources of energy.

potential energy
Potential Energy

Consider a roller coaster.

At the top, it has potential energy. The energy is stored just as the energy in the rubber band. It is energy waiting to be used for motion.

Check out the animated roller coaster.

kinetic energy
Kinetic Energy

As the roller coaster moves toward the bottom, kinetic energy increases along with the roller coaster’s speed.

Try building your own roller coaster.

the transformation of energy
The Transformation of Energy

Energy is conserved.

Conservation of energy means it can change forms between kinetic and potential, but it never disappears.The total amount of energy is always the same.

energy aboard ship9
Energy Aboard Ship

How many different kinds of energy can you find on a ship?

steam engines transform energy
Steam Engines Transform Energy
  • Potential energy is stored in fuel.
  • Chemical change produces heat energy.
  • Heat changes water to steam.
  • Steam provides mechanical energy.

Learn more about how a steam engine works.

steam engines transform energy11
Steam Engines Transform Energy
  • Mechanical energy moves the ship.
  • A moving ship has kinetic energy.

See an animated steam engine.

the steam engine
The Steam Engine
  • Steam turns large turbines.
  • Turbines turn a series of gears.
  • The gears reduce the turning speed of the shaft.

Visit a virtual engine room.

potential to kinetic
Potential to Kinetic

Heat Energy

(steam)

Potential Energy

(fuel)

Mechanical Energy

(engine parts)

Kinetic Energy

(ship moves)

speed in knots
Speed in Knots

A knot refers to the number of nautical miles covered in one hour. Many years ago, sailors would throw a log with a knotted rope attached over the side of the ship.

To calculate speed in knots, a sailor would simply count the number of knots that passed by as the line to the log was let out.

speedy transformations
Speedy Transformations

Starting and stopping a plane on the short deck of a ship means a fast conversion between kinetic energy and potential energy!

This is accomplished with a catapult.

Build a catapult to launch a balso wood glider plane.

fuel for people
Fuel for People

The people on a ship also need energy. Food provides fuel for people.

A galley is a ship’s kitchen.

transferring heat energy
Transferring Heat Energy

Heat energy raises the temperature of matter. It makes it hotter. The atoms move faster.

Heat moves from warmer matter to cooler matter.

heat transfer conduction
Heat TransferConduction

Conduction is a way of transferring heat through the contact of objects.

Try an interactive lesson on heat transfer.

heat transfer convection
Heat TransferConvection

Convection is heat transfer through a fluid with the hotter molecules rising and the cooler ones sinking.

Try an interactive lesson on heat transfer.

heat transfer radiation
Heat TransferRadiation

Radiation is heat transfer through space. The earth is heated by radiation from the sun.

Try an interactive lesson on heat transfer.

energy from food
Energy from Food

Food is fuel that gives us energy.

energy in food
Energy in Food

A calorie is a measure of the amount of energy. In food, energy is measured in thousands of calories or kilocalories.

Learn more about Measuring Calories.

transferring energy in food
Transferring Energy in Food
  • Food is digested and stored in our bodies as potential energy.
  • This potential energy can be transformed into kinetic energy as our bodies move and exercise.

When you exercise, you get hot?

What do youthink is happening?

the sun is a source of energy
The Sun is a Source of Energy

The sun’s energy becomes chemical energy and is stored in plants as potential energy.

energy in food25
Energy in Food

Find out how many calories are stored in a peanut with this simple science experiment.

Go to the peanut experiment.

burning calories
Burning Calories

How many calories do you use when you are doing various activities?

Use the following spreadsheet activity to find out.

Try the spreadsheet activity.

questions
Questions

Learning through inquiry. The last portion of this module contains questions about energy.

How can...

What if...

Why...

When does...

electric generators
Electric Generators

The electric generators are similar to the steam engines because they both transform energy into a useful form.

nuclear energy
Nuclear Energy

Be a virtual tourist and explore nuclear energy and power.

Explore nuclear energy.

history of electricity
History of Electricity

Benjamin Franklin – Kite Experiment

Read more about Franklin’s experiments.

history of electricity32
History of Electricity

Benjamin Franklin – Kite Experiment

Thomas Edison – Light Bulb

Read more and see pictures of Edison’s bulbs.

history of electricity33
History of Electricity

Benjamin Franklin – Kite Experiment

Thomas Edison – Light Bulb

George Westinghouse

Nikola Tesla

Alternating Current

Click on this slide to learn more.

speed of electricity
Speed of Electricity

Electrons moving in a wire are different from the electricity flowing through a wire.

  • The electrons themselves move very slowly.
  • The electricity moves nearly as fast as light.

Read answers to “How fast..?

ship s engines
Ship’s Engines

Take a virtual tour of an engine room.

slide36
Fuel

Bunker Oil

Aviation Gasoline

electrical energy transfer
Electrical Energy Transfer

When is water and electricity dangerous?

  • Pure water does not conduct electricity.
  • Our bodies are mostly water.
  • Impurities like salt make water more

conductive.

  • Our bodies contain salt.

Do we conduct electricity?

water and electricity
Water and Electricity

Perform a simple experiment to see water conduct electricity.

Download instructions for experiment.

energy use
Energy Use
  • How much is a kilowatt?
  • How much energy does your family use?

View an activity to learn more about energy use and conservation.

energy use40
Energy Use

Research electrical plants in your area.

Find out more about your community.

  • Where do you get your electricity?
  • What kinds of energy sources are used?
  • How much energy does your community use?
energy matters
Energy Matters

Just as there are many kinds of

energy and energy uses on a ship,

you use many kinds of energy every

day.

  • List different kinds of energy you see around you.
  • Will we ever run out of energy?
  • What can you do to conserve energy?