....describes the energy conservation and transformation of energy.........

1. Energy 101: BasicEnergy 101: Basic
Concepts of EnergyConcepts of Energy
& its Transformation& its Transformation

2. ENERGY CONVERSION
AND THE LAW OF
CONSERVATION OF
ENERGY

3. The Law of Conservation of Energy
 Energy can neither be created nor
destroyed but can be transformed
to other forms.
 This law can be dissected into 3
statements;
 Energy cannot be created.
 Energy cannot be destroyed.
 It can only be converted from one form
to another.

4.  Energy of an object can be thought of as
the sands in an hourglass!
 Energy always remain same or fixed
in quantity!
 But this sand can change position, from the top to bottom and
bottom to top! Likewise energy can change
in form eg. From KE  PE
Conservation of Energy

5. Energy Conversion
 Energy can be changed from one
form to another. Changes in the
form of energy are called energy
conversions.

6. Energy conversions
 All forms of energy can be
converted into other forms.
 The sun’s energy through solar cells
can be converted directly into
electricity.
 Green plants convert the sun’s energy
(electromagnetic) into starches and
sugars (chemical energy).

7. Other energy conversions
 In an electric motor, electromagnetic
energy is converted to mechanical
energy.
 In a battery, chemical energy is
converted into electromagnetic energy.
 The mechanical energy of a waterfall is
converted to electrical energy in a
generator.

8. Energy Conversions
 In an automobile
engine, fuel is
burned to convert
chemical energy
into heat energy.
The heat energy is
then changed into
mechanical
energy.

9. Chemical  Heat Mechanical

10. Chemical  Heat Mechanical