EXPERIMENTAL METHOD Linear Dimension, Weight and Density

UNIVERSITI TEKNIKAL No Dokumen: No. Isu/Tarikh: MALAYSIA MELAKA SB/MTU/T1/BMCU1022/1 4/06-07-2009

EXPERIMENTAL METHOD No. Semakan/Tarikh Jumlah Muka Surat Linear Dimension, Weight and Density 4/09-09-2009 4

OBJECTIVE

Investigation of different types of equipment for linear dimension measurements and to study measurement accuracy and precision using commonly used measuring equipments.

LEARNING OUTCOME

At the end of this laboratory session, students should be able to 1. Identify various dimensional measuring equipments commonly used in a basic engineering laboratory. 2. Apply dimensional measuring equipments to measure various objects accurately. 3. Compare the measured data measured using different measuring equipments. 4. Determine the measured dimensional difference using different equipments correctly. 5. Answer basic questions related to the made measurement correctly. 6. Present the measured data in form of report writing according to the normal technical report standard and make clear conclusions of the undertaken tasks.

THEORY

Basic physical quantity is referred to a quantity which is measurable such as weight, length and time. These quantities could be combined and formed what one called the derived quantities. Some of the examples of derived quantities include parameter such as area, volume, density, velocity, force and many others.

Measurement is a comparison process between standard quantities (true value) with measured quantity. Measurement apparatus complete with unit and dimension must be used in order to make a good and correct measurement. Accuracy means how close the measured value to the standard (true) value. Precision of measurement refers to repeatable values of the measurement and the results showed that its uncertainty is of the lowest degree.

EQUIPMENT 1. Objects of various shape, size and materials. 2. Stainless steel ruler and caliper. 3. Vernier caliper and micrometer 4. Weighting scale, measuring cylinder and beaker. 5. Planimeter and graph paper

1 PROCEDURES

You are given various shape of object and asked to determine it properties such as dimension, weight, volume and area. 1. Linear Dimension - Based on the object given, find the linear dimension such as length, width and diameter by using measurement apparatus provided. State the degree of accuracy of measured values. - Record the data into the table provided 2. Weight - Determine the weight of each object by using weighting scale - Record the data into the table provided 3. Volume - Fill in the measuring cylinder provided with water and record the water level as Vo - Immerses each object into that measuring cylinder and record the water level as V1 - The different between Vo and V1 is the volume of the object 4. Area - Determine the area of provided figure using planimeter and graph paper

2 EXPERIMENTAL DATA Table 1 Result

Weight & Ruler & Vernier Micrometer Planimeter Object Volume Vernier (mm) Caliper (mm) (mm) (cm²)

M =

D V0 =

V1 =

A M = B V0 = H V1 = M1

A M = B V0 =

C V1 =

H M = L V0 =

V1 = M1

L M =

M1 V0 =

M2 V1 =

DISCUSSIONS 1. Determine the surface area of all objects based on the data collected from measurement mentioned in procedure 1. Discuss the different compare to the procedure 4. 2. Determine the volume and density all the object, through a) Calculation based on measurement data b) Water level [V1 – V0] 3. Compare the value of density with the theoretical value for each material and calculate the percent of deviations.

CONCLUSION State your conclusion of the experiment.

REFERENCES List at least 2 references for this report.