free-body diagram

(noun)

A free body diagram, also called a force diagram, is a pictorial representation often used by physicists and engineers to analyze the forces acting on a body of interest.

Related Terms

  • resultant
  • vector

Examples of free-body diagram in the following topics:

  • Trigonometry

    • In physics, most problems are solved much more easily when a free body diagram is used.
    • Free body diagrams use geometry and vectors to visually represent the problem.
    • When people draw free body diagrams, often not everything is perfectly parallel and perpendicular.
    • This exercise involves drawing the free body diagram.
    • Removing all other elements from the image helps produce the finished free body diagram .
  • General Problem-Solving Tricks

    • Free body diagrams use geometry and vectors to visually represent the problem.
    • A simple free body diagram, shown above, of a block on a ramp illustrates this.
    • In physics, most problems are solved much more easily when a free body diagram is used.
    • To draw a free body diagram, do not worry about drawing it to scale, this will just be what you use to help yourself identify the problems.
    • What to include: Since a free body diagram represents the body itself and the external forces on it.
  • Forces in Two Dimensions

    • Free-body diagrams can be used as a convenient way to keep track of forces acting on a system .
    • Ideally, these diagrams are drawn with the angles and relative magnitudes of the force vectors preserved so that graphical vector addition can be done to determine the net force.
    • Free-body diagrams of an object on a flat surface and an inclined plane.
  • A General Approach

  • Problem-Solving Techniques

    • The strategy includes a free-body diagram for the pole, the system of interest.
    • Using the definition of torque (τ = rFsinθ), noting that θ = 90º, and substituting known values, we obtain:(0.900 m)(FR) = (0.600 m)(mg)Therefore:FR = (0.667)(5.00 kg)(9.80m/s2) = 32.7 NSolution for (b)The first condition for equilibrium is based on the free-body diagram in the figure.
  • Major Features of a Phase Diagram

    • The simplest phase diagrams are of pure substances.
    • These diagrams plot pressure on the y-axis and temperature on the x-axis.
    • The phase of a system is generally defined as the region in the parameter space of the system's thermodynamic variables (for immediate purposes, in the pressure-temperature parameter space) in which the system's free energy is analytic (meaning it can be calculated exactly from known parameters of the system).
    • The major features of a phase diagram are phase boundaries and the triple point.
    • The phase diagram for water is useful for learning how to analyze these diagrams.
  • Iron-Binding Proteins

    • Lactoferrin is one of the components of the immune system of the body.
    • Transferrins are iron-binding blood plasma glycoproteins that control the level of free iron in biological fluids .
    • Although iron bound to transferrin is less than 0.1% (4 mg) of the total body iron, it is the most important iron pool, with the highest rate of turnover (25 mg/24 h).
    • Richardson diagram of recombinant human lactoferrin.
  • Free Energy and Work

    • The Gibbs free energy is the maximum amount of non-expansion work that can be extracted from a closed system.
    • The Gibbs free energy is the maximum amount of non-expansion work that can be extracted from a closed system.
    • The appellation "free energy" for G has led to so much confusion that many scientists now refer to it simply as the "Gibbs energy. " The "free" part of the older name reflects the steam-engine origins of thermodynamics, with its interest in converting heat into work.
  • Evaporation

    • Evaporation is the process of molecules on a liquid's surface achieving sufficient energy to break free of the liquid and become gas.
    • This is why evaporating sweat cools the human body.
  • Pericyclic Reactions

    • An important body of chemical reactions, differing from ionic or free radical reactions in a number of respects, has been recognized and extensively studied.
    • In agreement with 1 & 2, no ionic, free radical or other discernible intermediates lie on the reaction path.
    • A general illustration of each class will be displayed in the four diagrams below.
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