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THE NATURE OF ENERGY. Energy Is the Ability to Do Work. Work involves motion. Is this guy working?. Why is he sweating?. Work happens when a force moves an object over a distance!. Who is working?. The 2 types of energy. Stored energy (the potential to do work is there but not seen).
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Energy Is the Ability to Do Work Work involves motion
Work happens when a force moves an object over a distance! Who is working?
The 2 types of energy Stored energy (the potential to do work is there but not seen) Potential Energy in motion Kinetic
Kinetic Energy The amount of mass and velocity there is determines how much Kinetic Energy there is
Mass then Kinetic Energy Velocity then Kinetic Energy Kinetic Energy = mass x velocity 2 2
http://www.schooltube.com/video/c4ea045957576318dbbe/Bill%20Nye%20The%20Science%20Guy%20-%20Energy%20(Full%20Clip)http://www.schooltube.com/video/c4ea045957576318dbbe/Bill%20Nye%20The%20Science%20Guy%20-%20Energy%20(Full%20Clip)
Mechanical Electromagnetic Different Forms of Energy Heat or Thermal Chemical Electrical Nuclear
Mechanical Energy • energy that is possessed by an object due to its motion or due to its position Ex. A moving car possesses mechanical energy due to its motion Ex. A barbell lifted high above a weightlifter's head possesses mechanical energy due to its vertical position above the ground • can be either kinetic energy (energy of motion) or potential energy (stored energy of position)
Mechanical Energy is defined as the Ability to Do Work An object that possesses mechanical energy is able to do work. In fact, mechanical energy is often defined as the ability to do work. Any object that possesses mechanical energy - whether it is in the form of potential energy or kinetic energy - is able to do work. That is, its mechanical energy enables that object to apply a force to another object in order to cause it to be moved.
Electrical Comes from moving electrical charges in the atom (electrons) Seen as power lines, batteries, lightening, and static electricity
Chemical Potential energy that is stored as chemical bonds holding together chemical compounds Examples are chemical batteries, candles (wax), and food in our bodies
Electromagnetic Travels in waves Is a combination of magnetic and electrical waves Examples include light, microwaves, x-rays, radiation, and radio waves
Heat or Thermal Comes from energy inside atoms and molecules As the atoms or molecules move faster, the thermal energy increases Can be Kinetic or Potential
http://www.schooltube.com/video/a36c86c08bd8e6d290ee/Bill%20Nye%20The%20Science%20Guy%20on%20Heat%20(Full%20Clip)http://www.schooltube.com/video/a36c86c08bd8e6d290ee/Bill%20Nye%20The%20Science%20Guy%20on%20Heat%20(Full%20Clip)
Nuclear Energy stored in the nucleus of an atom Results when the nucleus splits or joins with another nucleus Can happen naturally, from a star, or manmade, from a nuclear power plant
Energy can be transformed from 1 form to another, especially from potential to kinetic Examples include: The electrical energy from a power line causes a motor to run which creates wind, which travels in waves A wax candle creates heat which travels in waves and can turn a fan
