6.8B Energy Transformations Mini Lesson

6.8B Energy Transformation

6.8.B-describe how energy is conserved through transfers and transformations in systems such as electrical circuits, food webs, amusement park rides, or photosynthesis

Energy

Energy is all around us.

Energy Transfer vs. Energy Transformation

● Energy TRANSFER is the passing of energy from one

object to another object.

● Energy TRANSFORMATION is the changing of energy

from one form of energy to another form of energy.

The Law of Conservation of Energy

The Law of Conservation of Energy

-

Energy is never created or destroyed!
• The total amount of energy will always
remain the same!

Energy Transfer

The process of transferring energy from one
object to another. It does not change form, it
just moves.

Ex: Heat can be
transferred from
hot water to cold
water just by
connecting the two
with a piece of wire.

Energy Transfer

Activity: Ice melting
in hand

Form = HEAT
(thermal)

Source = hands

Receiver = ice

Activity: Biking

Form = KINETIC or
MECHANICAL (Motion)

Source = legs

Receiver = bike

Activity: Feeding frog

Form = CHEMICAL

Source = grasshopper
(food)

Receiver = Frog (growth)

Energy Transfer

Using Electronics

Form = ELECTRICAL

Source = outlet

Receiver = appliance
(TV, computer)

Seeing light

Form = LIGHT

Source = mirror

Receiver = eye

Hearing Music

Form = SOUND

Source = drum

Receiver = ear

Energy Transformation

• Energy transformation is the process of
changing energy from one form to another.

Energy Can Be Transformed

Transformation = converting one form of
energy to another form of energy

Drag and Drop

Electrical energy is transferred from the wall socket to the computer.  Choose the best answer below showing the transformation from electrical to ​ ​

Placeholder

Drag these tiles and drop them in the correct blank above

light and heat

sound and heat

light and chemical

there is no transformation

Dropdown

Light Energy from the sun is transformed to ​

Select answer

in the leaves as the plants grow.

Energy Chain Diagrams

• A method used to show the energy transfers or transformations
taking place in a system

Energy Accounting Diagram

• Diagram show the flow of energy into and
out of a system

QUICK CHECK!

● Quick Check in...

○ Write down responses as we go through the

following examples

Energy Transfer

Chemical

Electrical

Electrical

Electrical

Sound
(mechanical)

Light
(Electromagnetic)

Thermal

Mechanical

Match

Match each situation with the correct energy transformations.

• Batter powered circuit

• Tree absorbing sunlight

• Energy flow in an ecosystem

• Wind turbine generating electricity

• Food chain in a forest

Electrical energy to light energy

Solar energy to chemical energy

chemical energy to thermal energy

Kinetic energy to electrical energy

Chemical --> Electrical --> Light energy

• Electrical energy to light energy

• Solar energy to chemical energy

• chemical energy to thermal energy

• Kinetic energy to electrical energy

• Chemical --> Electrical --> Light energy