Experiment Leader: John Paolo Andes
Members:
Bea Mendoza Tricia dela Cruz Jeesza Albis Era Diana Augusto Robin Peralta Franz Mondoñedo Jan Mykiel Agar Reginald Turingan Michael Villaverde Zoren Eleazar Caspe Angelo Duque Paolo Serrano Dan James Losorata Aldrin Jay Bondoc Zeus Marquez Liezel Pantoja
Date Performed: July 11, 2013
Date Submitted:
I. Objective
To understand the relationship between the construction of a measuring instrument and the precision of the measurements made with it.
II. Equipments
Meterstick
Vernier Calliper
Metal Cylinder
Steel Ball
Platform Balance
Ruler (English and Metric Scale)
Micrometer Calliper
Rectangular Wooden Block
Measuring Cup (Calometer)
1000 ml Graduated Cylinder
III. Theory
The extent of something with respect to some standard. A measurement taken from a body or from an object must have a corresponding number or units. Unit involves three fundamental concepts – length, mass and time—and that all the rest can be derived from this showing the unity of physics.
Vernier Calliper
A vernier calliper (VC) is composed of main scale (MS) and a vernier scale (VS). The MS divisions are centimetres, or in degrees. The graduations on the vernier calliper scale are smaller than the main scale divisions. When the jaws of the calliper are closed, the zero of the MS coincides with the zero of the VS.
The general principle of the VC is that a certain number “n” of divisions on the VS is equal in length to a different number (usually one less) of MS divisions. In symbol: nV = (n – 1) S
Where: n is the number of divisions on the VS coinciding the MS. V is the length of the smallest division on the VS. S is the length of the smallest MS divisions.
Micrometer Calliper
A micrometer calliper is used for the precise measurement of small lengths. It consists of a micrometer screw mounted in a strong frame. The object to be measured is placed between the end of