Transcript 1- Energy - Glow Blogs

Energy
Forever
Lesson Starter
Answer in sentences at the back of your
jotter:
1.
We all need energy to live. In your jotters
write down as many forms of energy as you
know.
Experiences and Outcomes


I can investigate some of the processes which
contribute to climate change and discuss the
possible impact of atmospheric change on the
survival of living things.
SCN 3-05b
By investigating renewable energy sources and
taking part in practical activities to harness
them, I can discuss their benefits and
potential problems.
SCN 3-15b
Outline of topic
Energy types and conversion
 Fossil fuels
 Climate change and impact
 Nuclear power
 Renewable energy

Learning Outcomes

1.
2.
By the end of this lesson I will be able
to:
State the eight different types of
energy.
State that energy cannot be made or
destroyed, but it can be changed from
one form to another.
Sound energy

The vibrating drum and
the plucked guitar string
transfer energy to the
air in the form of a
sound wave. This sound
energy can be
transferred to your
eardrum as movement
(kinetic) energy.
Electrical energy

Electrical energy
reaches the light
bulb and is
transferred into
light energy and
heat energy.
Potential energy

The boulder on the
mountain has energy
because of its position
above the ground and
the pull of gravity. This
energy is called
potential energy.
Potential energy is
transferred into moving
(kinetic) energy as it
falls to the ground.
Heat Energy
A cup of hot tea
has heat energy.
The energy in the
liquid particles are
transferred to the
air. The tea cools
down.
Chemical Energy


When the explosive is
detonated, chemical
energy stored in the
explosive is released in a
chemical reaction as
heat energy and light
energy
Chemical energy is found
in food, batteries and
fuels.
Kinetic (movement) Energy



Kinetic energy is the
scientific name for
movement energy.
Kinetic energy in
humans comes from the
chemical energy stored
in the food we eat.
Cars move because the
chemical energy in
petrol is transferred
into kinetic energy by
the engine.
Nuclear Energy


Naturally: some nuclear
energy is produced naturally.
For example, the sun and
other stars make heat and
light by nuclear reactions.
Man-made: nuclear energy
can be man-made too.
Machines called nuclear
reactors, parts of nuclear
power plants, provide
electricity for many cities.
Man-made nuclear reactions
also occur in the explosion
of atomic bombs.
Light energy



Light energy comes
from the sun (solar).
This light energy is
essential for life on
earth.
Light energy also comes
from burning chemicals
e.g candles.
Light energy can be
transferred from
electrical energy using a
light bulb.
Forms of Energy
 We
all need energy to live.
 Energy can be classified into 5 action groups
and 3 stored groups.
Action
Stored
Kinetic
Chemical
Heat
Nuclear
Light
Potential
Electrical
Sound
Lesson Starter
List the 8 types of energy
• Copy and complete the following
sentenceEnergy
be
or
destroyed but it can be
from
one
to another
•
Law of Conservation of Energy
Energy cannot be
created or destroyed but
it can be converted from
one form to another
Energy Changes
Process
Food mixer
Walking
Trampolining
House fire
Solar panel
Battery
Wind-up radio
Energy Change
Energy Changes
Process
Food mixer
Walking
Trampolining
House fire
Solar panel
Battery
Wind-up radio
Energy Change
Electrical
Chemical
Potential
Chemical
Light
Chemical
Kinetic
Kinetic
Kinetic
Kinetic
Heat + Light
Electrical
Electrical
Potential + Sound