What is the difference between beam balance and physical balance

Such movement can be directed along lines, edges, shape, and color within the work of art. Pattern as a principle of design may be defined as regular arrangement of repeated same elements i. Pattern usually increases the visual excitement by supplementing surface interest. These are line, shape, color, value, form, texture, and space. The elements of art are color, form, line, shape, space, and texture. The principles of art are scale, proportion, unity, variety, rhythm, mass, shape, space, balance, volume, perspective, and depth.

The 7 principles of art and design are balance, rhythm, pattern, emphasis, contrast, unity and movement. The elements of art and design are the tools of visual artists. Many of us are familiar with the traditional Feldman model of art criticism steps: Description, Analysis, Interpretation, and Evaluation…. Skip to content Physics. Construction and Working of Physical Balance. This is a device used to find the mass of an object.

It consists of a horizontal beam resting at its middle point on a central knife edge. Two similar pans are suspended on two more knife edges near each end of the beam. A physical balance is a very sensitive common balance which can measure weights in milligram order. Common balance is defined as the balance which is having each arm as suspended. The unknown mass is kept in one arm and the known mass in another until they both become equivalent.

Therefore this balance is working on the principle of moment of weights. When the weights are being balanced, equilibrium is attained. The common balance works on the principle of equality of moment of forces. The measure of the tendency of a body to rotate about an axis is called the moment of force. Scales and balances are both weighing machines, however the difference between a scale and a balance is that a weighing scale measures weight relevant to the force of gravity, while a weighing balance is used to compare the mass of two different objects.

Even inexpensive models are likely to offer more precise measurements than most beam scales. This is why some electronic scales use a glass or clear plastic enclosure to protect the surface of the scale and the object being weighed.

Majority of times you will find an electronic analytical balance suitable for weighing your samples and reference standards. The readability or least count of such balance is 0. There are two basic types of electronic balance designs. These are based on completely different principles, but what they both have in common is that neither directly measures mass.