Forces Revision

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  • Created by: MustafzYT
  • Created on: 27-01-18 15:45
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  • Forces Revision
    • Vector Quantites
      • Force
        • Measured in Newtons (N)
      • Velocity
      • Displacement
      • Acceleration
        • Equation: Change of velocity/Time taken.
        • Unit of measurement:m/s^2
      • Momentum
        • Momentum = Mass x Velocity
      • Vectors are represented by arrows and the length being the magnitude and the direction shows the direction of the object
    • Scalar Quantites
      • Speed
      • Distance
      • Mass
        • Mass is measured in kilograms
      • Temperature
      • Time
        • Time is measured in seconds.
    • Contact Force
      • Friction
      • Air Resistance
      • Tension in ropes
      • Normal contact force
    • Non-Contact Force
      • Magnetic Force
      • Gravitational Force
        • The gravitational force here on Earth is 9.8N/kg
      • Electrostatic Force
    • Newton's Laws
      • Newton's First Law
        • If there is no force, there is no change in velocity
      • Newton's Second Law
        • The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object
      • Newton's Third Law
        • For every action, there is an equal and opposite reaction
    • Equations
      • Weight(N)=Mass(kg) x Gravitational Field Strength
      • Distance(m) = Speed(m/s) x Time(s)
      • Momentum = Mass x Velocity
      • Work done(J) = Force(N) x Distance(m)
      • Force = Spring Constant (N/m) x Extension(m)
      • Resultant Force = Mass x Acceleration.
    • Good old facts?
      • Weight and Mass are directly proportional!
        • The centre of mass is the place you think most of the mass is concentrated in.
          • Good old facts?
            • Weight and Mass are directly proportional!
              • The centre of mass is the place you think most of the mass is concentrated in.
              • Weight is a force and Mass is what is measured by kilograms always!
        • Weight is a force and Mass is what is measured by kilograms always!
      • Forces and Elasticity
        • Elastic Deformation
          • An object has been elastically deformed if it can return into shape.
        • Inelastic Deformation
          • An object has been inelastically deformed if it cannot return back into shape

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