Transcript Energy Aboard Ship

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.
Hear Einstein explain matter and
energy in his own words.
Matter and Energy
Energy is the ability
to do work.
Force x Distance = Work
Read an online book about energy.
Kinetic vs. Potential
Potential energy
is stored
energy.
Kinetic energy
involves motion.
Learn about the different forms
and sources of 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
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
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 Ship
How many different kinds of energy
can you find on a ship?
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 Energy
Mechanical energy moves the ship.
A moving ship has kinetic energy.
See an animated 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 Energy
(fuel)
Heat Energy
(steam)
Mechanical Energy
(engine parts)
Kinetic Energy
(ship moves)
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
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
The people on a
ship also need
energy. Food
provides fuel for
people.
A galley is a ship’s
kitchen.
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
Conduction is a way
of transferring
heat through the
contact of objects.
Try an interactive lesson on heat transfer.
Heat Transfer
Convection
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
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
Food is fuel that gives us energy.
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
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 you think is happening?
The Sun is a
Source of Energy
The sun’s energy becomes chemical
energy and is stored in plants as potential
energy.
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
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
Learning through inquiry. The last
portion of this module contains
questions about energy.
Electric Generators
The electric
generators are
similar to the
steam engines
because they both
transform energy
into a useful form.
Steam to Run a Ship
Nuclear Energy
Be a virtual tourist and explore
nuclear energy and power.
Explore nuclear energy.
History of Electricity
Benjamin Franklin – Kite Experiment
Read more about Franklin’s experiments.
History of Electricity
Benjamin Franklin – Kite Experiment
Thomas Edison – Light Bulb
Read more and see pictures of Edison’s bulbs.
History of Electricity
Benjamin Franklin – Kite Experiment
Thomas Edison – Light Bulb
George Westinghouse
Alternating
Nikola Tesla
Current
Click on this slide to learn more.
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
Take a virtual tour of an engine room.
Fuel
Bunker Oil
Aviation Gasoline
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
Perform a simple experiment to see
water conduct electricity.
Download instructions for experiment.
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 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
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?