11. Geothermal
Energy
Thermal energy is the
part of the
total, internal energy of
a thermodynamic
system or sample of
matter that results in
the system's
temperature.
12. Forms of Energy How it is Formed How it is Used
Heat By rubbing two faces For cooking food
together For pressing clothes
Mechanical By using machines, For running motor
moving objects vehicles
Chemical By releasing stored For making processed
energy in substances food and medicines
Electrical By the flow of electrons For supplying power to
electric bulbs and
appliances
Sound By vibrating For providing music and
bodies/objects communication
Radiant By waves moving For drying clothes for
through space illumination
Nuclear By separating or For generating electricity
combining atomic
particles
Geothermal By harnessing steam from For generating electricity
the underground
13. POINTS TO PONDER
Chemical, sound, thermal, mechanical, radiant, nuclear, and electrical
are forms of energy.
Chemical energy is stored in substances.
Mechanical energy is found in moving bodies such as
wheels, windmills, and running water.
Nuclear energy can be both helpful or harmful to man.
Radiant energy is used to dry our clothes, disinfect our beddings, or
diagnose diseases.
14. LET US REVIEW
• Direction: write letter of the correct answer b) Chemical energy
on your on paper.
c) Radiant energy
4. What kind of energy is used o cook food?
1. What energy does lightning possesses?
a) Heat energy
a) Mechanical energy
b) Chemical energy
b) Chemical energy
c) Radiant energy
c) Electrical energy
5. What is an example of mechanical
2. What does a battery possess? energy?
a) Mechanical energy a) Telephone connection
b) Chemical energy b) Moving train
c) Radiant energy c) Charging battery
3. What kind of energy is used to operate a
train?
a) Mechanical energy