p6

• Kinematics


  The study of motion of objects without reference to the force that can cause motion
• Basic concepts of Kinematics

  • Scalar
  • Vector
• Scalar


  Physical quantity with only magnitude
• Vector


  Physical quantity with both magnitude and direction
• Variables in Kinematics

  • Position
  • Displacement
• Position


  The physical location of an object in space relative to an origin or other reference point in a defined coordinate system
• Displacement


  A measure of change in position or how far an object has moved from a reference point
• Types of Motion

  • V Vibratory
  • L Linear
  • C Curvilinear
  • O Oscillatory
  • C Circular
  • R Rotary
• Distance


  Measurement of total movement of an object travelled without reference to the direction of motion
• Acceleration


  Rate of change of velocity over time
• Speed


  change of distance over time
• Velocity


  Rate of change of displacement over time
• Force


  An interaction, such as pull or push, of two objects that influences the motion of a system
• Law of universal gravity


  • Every object of mass in the universe creates a gravitational field and every object of mass in the universe senses and interacts with other object's field
• Dynamics


  Deals with motion and factors that affect motion
• Main forces affecting an object's velocity and acceleration

  • Mass
  • Force
  • Momentum
  • Energy
• Rolling Friction


  A force that resists motion
• Sliding


  The resistance created by any two objects sliding against each other
• Friction


  The force resisting the relative surface fluid, layers and natural elements sliding against each other
• Types of Friction

  • Static Friction
  • Fluid Friction
• Static Friction


  The force on an object that is not moving
• Fluid Friction


  The force that opposes motion within fluids