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Chapter 9 - Coggle Diagram

- - - - disadvantages : It requires a lot of energy to be build and needs sufficient care in order to reduce the amount of waste generated during the production and disposal of the solar panels
  - - - disadvantages : it has a bad environmental impact as the reservoir waters will flood the area behind the dam . Causing, the plants to be killed and animals to move out to other areas . It also causes people who make a living off fish to relocate further inland and they might not be able to fish anymore.
  - - - the can also be produced from food waste such as used cooking oil
    - - advantages : the plants used to make biofuels can be grown in a short amount of time . It can also help recycle and reduce our food waste . The plants needed to produce biofuels' carry out photosynthesis which absorbs the carbon dioxide in the air therefore balancing the amount of carbon dioxide being produced when making biofuels
  - - - disadvantages : there are still research efforts to find newer and safer ways to generate energy through nuclear reactions. It can also be a potential health harm and safety risk to the people living nearby nuclear power plants.
- - - - a force is applied on an object
      - the object moves
      - the object moves in the same directions the force applied on it
- - - - the amount of force due to a pull
- - - - area =m2
- - - - a force that opposes motion between two surfaces in contact
        
        it allows us to hold objects without dropping them
    - - a force that acts on a stretched or compressed elastic object to return to its original shape
        
        when a elastic material is stretched it resist the change in shape by exerting force in the opposite direction
- - - - a force that attracts two objects towards each other
        
        the object being pulled the center is called weight
      - as the mass increases , the total amount of gravitational energy increases as well
    - - it is the force exerted between a magnet and another magnetic material
        
        magnetic force also exist between two magnets
        
        like poles repel and unlike poles attract
- - - - move a stationery object, change the speed of an object, change the direction where a object moves and stop a moving figure
      - a force applied on a object can cause a turning effect about a fixed point called pivot
        
        it helps us to carry out an action with little force such as removing a lid from the tin can