Energy Transferred

1. Energy Transferred

2. Warm - up • Define energy • Provide me with 2 examples of natural resources from the video and tell how you think energy can be transferred from them • Btw…happy new year!

3. What is energy? • Energy is the ability to do work. • A Natural Resource – is any energy source, organism, or substance found in nature that people use.

4. Law of Conservation of Energy • Energy cannot be created or destroyed. However energy can change forms and be transferred from one object to another

5. Renewable vs. Nonrenewable Resources • A renewable resource - is a natural resources that replaces itself in nature faster then we use it • A nonrenewable resource – is a resource that has a fixed amount that is used faster then it’s replaced

6. Types of Renewable Resources • Sunlight (solar) • Common Uses: power of solar cells and batteries, heating of homes/businesses, and generating electricity

7. Types of Renewable Resources • Wind (air) • Uses: power to move windmills that pump water, grind grain, and generate electricity

8. Types of Renewable Resources • Hydropower (Water) • Uses: power to generate electricity, transportation with boats and ships, drinking and washing

9. Types of Renewable Resources • Biomass (trees and other plants) • Uses: materials for furniture, clothing, dyes, medicines, paper, cardboard, and generating electricity

10. Types of Nonrenewable Resources • coal • Uses: fuel to generate electricity, chemicals for medicines, and consumer products

11. Types of Nonrenewable Resources • Oil • Uses: fuel for cars, airplanes, trucks; fuel for heating and generating electricity; chemicals for plastics, synthetic fabrics, medicines, grease, wax

12. Types of nonrenewable Resources • Natural Gases • Uses: fuel for heating, cooking and generating electricity

13. There are two states of energy or types of energy . • Potential and kinetic.

14. Potential • Potential is stored energy

15. Kinetic • Kinetic is the energy of motion.

16. There are five main forms of energy. • Chemical • Mechanical • Electromagnetic • Heat (thermal) • Nuclear

17. Chemical Energy • Energy that is available for release from chemical reactions.

18. Mechanical Energy • Energy due to a object’s motion (kinetic) or position (potential).

19. Electromagnetic • Light energy • Includes energy from gamma rays, xrays, ultraviolet rays, visible light, infrared rays, microwave and radio bands • Moving electric charges

20. Heat or Thermal • Internal motion of atoms. • The heat energy of an object determines how active its atoms are.

21. Nuclear • Nuclear energy is the energy stored in the nucleus of an atom and can be broken into: • fusion (energy of the sun which is the combing of two or more nuclei) and • fission(the splitting of an atom like in a nuclear reactor).

22. Energy Transfer Sound (mechanical) Electrical Thermal Mechanical Electrical Chemical Electrical Light (Electromagnetic)

23. There are three types of (energy) heat transfer. • Convection • Conduction • Radiation

24. Convection • Convection is the transfer of heat energy in a gas or liquid by movement of currents due to changes in density.

25. Conduction • is the transfer of energy through matter from particle to particle.

26. Radiation • Allows heat to be transferred through wave energy.

28. Renewable • Renewable resources are those resources that can be replaced as they are used up. Some examples include: • soil • air • water • wood • sunlight

29. Non-Renewable • Nonrenewable resource are those natural resources that cannot be replaced once they are used up. Some examples include: • oil • coal • gas • uranium

30. In fact ….. NOTHING would happen without ENERGY