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Megan Chua's Forces - Coggle Diagram

- - - - mass
      - distance between objects
    - - a force pulling you down
        
        e.g
        
        When we throw a ball in the air, it falls back to the ground eventually.
    - - (unless in space)
        
        there is very less gravitational force in space
        
        hence, you float around
        
        hence, no force is pulling you down
  - - - pulling force
        
        e.g.
        
        a magnet pulls a magnet or a magnetic material towards it.
      - attraction happens when :
        
        there is a magnetic material
        
        unlike poles of a magnet face one another
    - - pushing force
        
        e.g.
        
        a magnet pushes magnet away from it.
      - repulsion happens when :
        
        like poles of a magnet face one another
- - - - an object rubs onto a non-smooth surface
    - - The type of surface
        
        more rough, more friction
      - The force pressing the two surfaces together
        
        heavier objects have more friction
    - - opposes motion
        
        slows things down
      - acts opposite to the direction of motion
    - - add lubricant
        
        oil, wax, or grease
      - ball bearings, wheels, or rollers between moving parts
      - Apply air cushioning.
      - streamlined shape
  - - - it stretches
      - weight hung to the end of a spring = stretch
    - - it compresses
      - weight added onto a spring = compress
    - - when reached >> lose elasticity
        
        cannot return to its original shape and size
        
        remains in a stretching position.
- - - - start moving
      - change in shape
    - - move faster / slower
      - stop moving
      - change direction / shape