Nothing Special   »   [go: up one dir, main page]
Scribd Logo
Upload

Welcome to Scribd!

  • 18 views

    Tutorial Physical Quantities

    Uploaded by

    michael lugano
    1. The frequency of vibration of a liquid drop depends on its surface tension, density, and radius. The frequency can be derived using dimensional analysis. 2. Fundamental physical quantities are defined directly from their units, while derived quantities are defined in terms of other quantities. Dimensional analysis involves writing quantities in terms of their fundamental units. 3. Dimensional analysis is useful for checking the consistency of equations but has limitations. It can be used to derive empirical equations when certain physical quantities are known to be related.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd

    Tutorial Physical Quantities

    Uploaded by

    michael lugano
    18 views2 pages
    1. The frequency of vibration of a liquid drop depends on its surface tension, density, and radius. The frequency can be derived using dimensional analysis. 2. Fundamental physical quantities are defined directly from their units, while derived quantities are defined in terms of other quantities. Dimensional analysis involves writing quantities in terms of their fundamental units. 3. Dimensional analysis is useful for checking the consistency of equations but has limitations. It can be used to derive empirical equations when certain physical quantities are known to be related.

    Original Description:

    tutorial physical quantities

    Original Title

    tutorial physical quantities

    Copyright

    © © All Rights Reserved

    Available Formats

    PDF, TXT or read online from Scribd

    Did you find this document useful?

    Is this content inappropriate?

    1. The frequency of vibration of a liquid drop depends on its surface tension, density, and radius. The frequency can be derived using dimensional analysis. 2. Fundamental physical quantities are defined directly from their units, while derived quantities are defined in terms of other quantities. Dimensional analysis involves writing quantities in terms of their fundamental units. 3. Dimensional analysis is useful for checking the consistency of equations but has limitations. It can be used to derive empirical equations when certain physical quantities are known to be related.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    18 views2 pages

    Tutorial Physical Quantities

    Uploaded by

    michael lugano
    1. The frequency of vibration of a liquid drop depends on its surface tension, density, and radius. The frequency can be derived using dimensional analysis. 2. Fundamental physical quantities are defined directly from their units, while derived quantities are defined in terms of other quantities. Dimensional analysis involves writing quantities in terms of their fundamental units. 3. Dimensional analysis is useful for checking the consistency of equations but has limitations. It can be used to derive empirical equations when certain physical quantities are known to be related.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 2

    PHYSICAL QUANTITIES –TUTORIAL SHEET

    1. After being deformed and then let free, a drop of liquid vibrate with a frequency which
    appears to depend on the surface tension of drop, the density ρ of the liquid and radius
    r of the drop. By means of dimensions, derive an expression for the frequency of
    vibration.
    2. . (a) Distinguish between a fundamental physical quantity and derived physical quantity?

    (b)What is the dimension of physical quantity?

    (c) Write the quantities below in dimension form

    (i)The coefficient of viscosity

    (ii)The surface tension

    (iii)The gravitational constant

    3. (a) State the uses and limitations of dimensions

    (b)Find out whether or not the equation below is dimensionally homogeneous

    =k( )

    Where k, v, t, p, r, η and L are dimensionless constant, volume, time, pressure, radius,


    viscosity constant and length respectively

    (c) A wave is produced in taut wire by plucking it, the speed of the wave is said to be
    dependent on tension T of the wire, the mass M and length L. Using this information
    derive an empirical equation for the speed of the wave in wire.

    4. A ball bearing of radius r is released from the surface of the viscous liquid of viscosity
    constant η in a tall tube. The bearing attains maximum velocity v as it falls through the
    liquid. Given the friction force opposing the motion of the ball as;

    F=k

    Find numerical value of x, y, and z


    5. (a) A student in examination write s = ut + at² as one of the equations of motion he goes
    on to check dimensionally its homogeneity and he gets satisfied that he has quoted the
    write equation. What is the problem with the formula?

    (b)The volume of the fluid flowing through a narrow tube per unit time depends on

    pressure gradient , viscosity constant η of the fluid and radius r of the tube. Obtain the
    expression for time rate of flow Q.

    6. (a) the periodic time T of a simple pendulum is assumed in the form of

    T=k

    Where k, m, l and g constant, mass of the bob, length of the thread, and acceleration due
    to gravity in the same order, Find the numerical values of x, y, and z. Give your comment
    on the expression.

    (b)A force experienced by an object moving in a circle depends on mass m of the object,
    the velocity v at which it moves and radius r of the circle it describes. By using
    dimension obtain the expression for the force.

    You might also like