Energy Forms

What is Energy?

Energy is the ability to do work It allows us to change or move matter We have learned to utilize energy to

make life more comfortable and efficient

Energy occurs in many forms

Two Main Groups

Energy can be divided into two main groups:

KINETIC: energy of motion Motion of waves, molecules, substances,

and objects Radiant, Thermal, Mechanical, Sound, Solar

POTENTIAL: stored energy Think of it as the “potential” for active energy Examples include: Chemical, Electrical,

Gravitational, Nuclear

Types of KINETIC Energy

Thermal Energy

Thermal = Heat As molecules in a substance move

more quickly, they produce heat and thermal energy is increased

Geothermal Energy- heat energy from the inside the EarthGeo = Earth

Examples of Thermal Energy

Radiant Energy

Travels in waves Includes light, x-rays, gamma rays,

and radio waves Also called electromagnetic

Solar energy is a special type of radiant energy that combines heat and light to warm the Earth

Examples of Radiant Energy

Mechanical Energy

Energy produced by moving parts or objectsMachinesYour bodyThe faster the motion the greater the

energy• Think of a car crash

Examples of Mechanical Energy

Types of POTENTIAL Energy

Chemical Energy

Stored in the bonds of atoms and molecules Energy released from chemical reactions Is converted into other forms of energy

when bonds are broken or combined

Biomass- is stored chemical energy that we get from living things Bio = living things Use coal to create fuel

Examples of Chemical Energy

Electrical Energy

Energy created by the movement of charged electrons

Often travel through wires or circuits Usually converted into other forms of

energy

Examples of Electrical Energy

Nuclear Energy

Energy stored in the “nucleus” of atoms

Two processes to access this energy:NUCLEAR FISSION: splitting one

large nucleus into two smaller onesNUCLEAR FUSION: combining two

smaller nuclei into one larger one

Examples of Nuclear Energy

Energy Transformations

Occur when one form of energy is “transformed” or converted into another more useful form

For example:Electrical Energy Light and Thermal

energy

QUIZ TIME!!!!

What types of energy are shown below?

Chemical, Electrical, Mechanical andRadiant/Electromagnetic Energy

What type of energy is shown below?

Chemical Energy (yummy)

What type of energy is shown below?

Thermal Energy

What type of energy is shown below?

Mechanical Energy

What type of energy is shown below?

Nuclear Energy

What type of energy is shown below?

Thermal and Electrical Energy

What type of energy is shown below?

Solar Energy

Radio: Chemical Electrical Mechanical Sound

Tires: Chemical Mechanical Thermal

Draw a flow map showing the flow of energy transformations in a car from starting vehicle to driving.