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Physics :, q is electron charge - Coggle Diagram

- - - - Fg: The gravitational force the Earth exerts on or near its surface
  - - - m= mass
      - g= acceleration
  - - - The property of an object that causes it to resist a change of rest or uniform motion
      - kg
  - - - mass setting up field
      - G = 6,7x10^-11
    - - small m's cancel
        
        thus formula = g = GM/r^2
      - Gravitational fields ( acceleration due to gravity)
- - - - F = force of charge
        
        combine this with coloumbs law
        
        =
        
        E = kQ/ r^2
      - q = charge experiencing the force
- - - - W is J.C^-1
  - - - R = V/I
  - - - Cost=power x time x cost per unit
- - - - weight
        
        the gravitational force the Earth exerts on any object on or near its surface
      - Frictional Force
        
        The force that opposes the motion of an object
      - Normal force
        
        The perpendicular force exerted by a surface on any object in contact with it
  - - - step 1- define a positive direction
      - step 2: use triangle + forces given to solve for hypotenteuse ( resultant force)
      - step 3: use python to use tan to get resultant angle
      - step 4: put on cartisean plane and define what quadrant it is
    - - PARALLEL
        
        Fx=Fcosθ
      - VERTICAL
        
        Fy= Fsinθ
- - - - V
        
        a
        
        t
        
        time
        
        acceleration
        
        final velocity
      - initial velocity
  - - - has curves, slanted and flat lines
      - going right is positive, going left is negative
        
        if going up in the positive direction then object is accelerating in positive direction
      - up is positive down is negative
    - - slanted lines in any direction mean a = 0 ( constant velocity)
      - curved lines = decreasing uniformly
        
        if a semi circle = change in direction
      - flat lines: a = 0
    - - slanted + flat lines
      - going up is positive, down is negative
      - slanted up = + direction + constant velocity
      - flat lines = a=0
    - - flat lines
      - above 0 = positive acceleration
- - - - x10^-3
    - - x10^-6
    - - x10^-9
    - - x10^-12
    - - An electrical charge cannot be created or destroyed, only transferred from one object to another
      - The law of conservation of charge:
        
        The algebraic sum of the charges in an isolated system will remain constant
    - - F = kq1q2/r^2
      - Two point charges exert forces on eachother. The force is directly proportional to the product of the charges and inversely proportional to the square of the distance between the charges
      - E = kQ/r^2
        
        electric field strength