Energy Forms and Transformations

Objective: Examine the various forms of energy in order to identify and describe specific energy transformations.

DIRECTIONS: Use the information contained on the following slides to complete your “Energy Concept Web”. Advance to the next slide by clicking your mouse or by pressing the “down arrow” key one time.

Energy• the “stuff” that makes “stuff do stuff”

OR

• the ability to do work. (W=F x D)

(F=force d=distance)

Types (kinds) of Energy

•KE (kinetic energy)•PE (potential energy)

Forms of energy•Mechanical•Heat/Thermal•Chemical•Electrical•Electromagnetic•Nuclear

Mechanical Energy

• Energy of motion or position

• Sound, wind, waterfall, compressed spring

• KE or PE• Not 100% efficient

much lost to heat

Heat/Thermal Energy• The internal motion of

an objects atoms and molecules.

• Measured by temperature.

• The faster particles move, the more thermal energy they have.

• KE only

Chemical Energy

• Energy stored by chemical bonds in an object.

• When bonds are broken energy is released.

• PE only

• gasoline, food, coal, wood

Electrical Energy

• Moving electrical charges.

• Electricity

• from batteries, power lines, lightning

• KE

Electromagnetic Energy

• energy that travels in waves; have electrical and magnetic properties

• Light, Magnetism, X-Rays, Radio waves, microwaves, ultraviolent and infrared radiation

• KE

Nuclear Energy

• Energy stored in center(nucleus) of an atom

• Fission (breaking apart)

• Fusion (forming)• The sun• Most powerful• PE only

• Interactive Review of Forms of Energy

Forms of Energy Brainpop

(Username: bcps Password: brainpop)When you have logged in, type in

“forms of energy” in the search box; then take the pop quiz.