Forms Of Enegry Flashcards
(33 cards)
The ability to do work or cause change
Energy
Most of our energy comes from
The sun
Forms of energy (7)
Mechanical, radiant, chemical, electrical, nuclear, thermal, sound
Energy of moving objects
Mechanical energy
2 types mechanical energy
Potential and kinetic
• Energy of light; also referred to as light energy or electromagnetic energy
• Travels in waves
• Travels in a straight path from one place to another
Radiant Energy
• Energy stored in the bonds of molecules
• Involved when chemical reactions take place
• A form of potential energy
Food
Examples of Chemical Energy
Coal
Battery
0000
Chemical Energy
• Energy stored in the bonds of molecules
• Involved when chemical reactions take place
• A form of potential energy
Chemical Energy
The energy of moving electrons or electric charges
• Electricity is used by many different objects in our daily lives
• Electricity was first used in homes in the late 1800s
Electrical energy
The energy locked in the nucleus of an atom
Nuclear energy
the process of splitting an atom
Nuclear fission
two or more atoms violently joined together to make a larger atom
Nuclear fusion
The energy of heat
Thermal energy
Particles of hot objects move ______ than the particles of cooler objects
Faster
The energy from vibrations in matter
Sound
________is related to the average kinetic energy of the particles in a substance.
Temperature
K =
C + 273
C =
K - 273
Even if the temperature doesn’t change, the thermal energy in a more massive substance is _______
Higher
The flow of thermal energy from one object to another.
Heat
Heat always flows from _____ to _____ objects.
Warmer to cooler
There are 3 different ways to transfer thermal energy:
Conduction, convection, radiation
Heat transfer through solid
Conduction
Heat transfer through gasses and liquids
Convection
