Motion Study

Examples of Motion Study in the following topics:

• Defining Kinematics

  • Kinematics is the study of the motion of points, objects, and groups of objects without considering the causes of its motion.
  • The study of kinematics is often referred to as the "geometry of motion."
  • To describe motion, kinematics studies the trajectories of points, lines and other geometric objects, as well as their differential properties (such as velocity and acceleration).
  • A formal study of physics begins with kinematics.
  • The word "kinematics" comes from a Greek word "kinesis" meaning motion, and is related to other English words such as "cinema" (movies) and "kinesiology" (the study of human motion).

• Scientific Management: Taylor and the Gilbreths

  • A significant part of Taylorism was time studies.
  • While Taylor was conducting his time studies, Frank and Lillian Gilbreth were completing their own work in motion studies to further scientific management.
  • The Gilbreths made use of scientific insights to develop a study method based on the analysis of work motions, consisting in part of filming the details of a worker's activities while recording the time it took to complete those activities.
  • Time and motion studies are used together to achieve rational and reasonable results and find the best practice for implementing new work methods.
  • Differentiate between Taylorism and the Gilbreths' perspective on the one hand and motion studies on scientific management on the other

• Center of Mass and Translational Motion

  • Our study of motion has been limited up to this point.
  • Different parts of a body have different motions.
  • Describing motions of parts or particles that have different motions would be quite complicated to do in an integrated manner.
  • We can describe general motion of an object (with mass m) as follows:
  • Support the presence of COM in three dimensional bodies in motion

• Constant Angular Acceleration

  • Kinematics is the description of motion.
  • We have already studied kinematic equations governing linear motion under constant acceleration:
  • To determine this equation, we use the corresponding equation for linear motion:
  • By using the relationships a=rα, v=rω, and x=rθ, we derive all the other kinematic equations for rotational motion under constant acceleration:
  • This figure shows uniform circular motion and some of its defined quantities.

• Introduction: Physics and Matter

  • Physics is a natural science that involves the study of matter and its motion through space and time, along with related concepts such as energy and force .
  • More broadly, it is the study of nature in an attempt to understand how the universe behaves.
  • Many concepts integral to the study of classical physics involve theories and laws that explain matter and its motion.
  • Physics aims to describe the function of everything around us, from the movement of tiny charged particles to the motion of people, cars, and spaceships.
  • The study of physics is capable of making significant contributions through advances in new technologies that arise from theoretical breakthroughs.

• Torque

  • Torque about a point is a concept that denotes the tendency of force to turn or rotate an object in motion.
  • The torque in angular motion corresponds to force in translation.
  • Rotation is a special case of angular motion.
  • In other words, the plane of motion is perpendicular to the axis of rotation.
  • A brief introduction to torque for students studying rotational motion in algebra-based physics courses such as AP Physics 1 and Honors Physics.

• Flow Rate and Velocity

  • Fluid dynamics is the study of fluids in motion and corresponding phenomena.
  • A fluid in motion has a velocity, just as a solid object in motion has a velocity.
  • Equation 1 shows the mathematical expression for the velocity of a fluid in motion.
  • Fluid flow velocity effectively describes everything about the motion of a fluid.
  • Assess the significance of studying volumetric flow in addition to flow velocity

• Motion with Constant Acceleration

  • Assuming acceleration to be constant does not seriously limit the situations we can study and does not degrade the accuracy of our treatment, because in a great number of situations, acceleration is constant.
  • The motion of falling objects is a simple, one-dimensional type of projectile motion in which there is no horizontal movement.
  • Projectile motion is the motion of an object thrown or projected into the air and is subject only to the acceleration of gravity.
  • In two-dimensional projectile motion, there is both a vertical and a horizontal component.

• Angular vs. Linear Quantities

  • Linear motion is motion in a straight line.
  • Similarly, circular motion is motion in a circle.
  • We recall from our study of linear velocity that a change in the direction of the velocity vector, is a change in velocity and a change in velocity is acceleration.
  • Constant angular velocity in a circle is known as uniform circular motion.
  • A vector diagram illustrating circular motion.

• Damped Harmonic Motion

  • Over time, the damped harmonic oscillator's motion will be reduced to a stop.
  • The simple harmonic oscillator describes many physical systems throughout the world, but early studies of physics usually only consider ideal situations that do not involve friction.
  • We solve this differential equation for our equation of motion of the system, x(t).
  • Illustrating the position against time of our object moving in simple harmonic motion.
  • Describe the time evolution of the motion of the damped harmonic oscillator