Physics Experiment - Sample Outline

The vectors are no longer drawn according to scale but rough sketch can be made to represent the vector.
             III. Materials.
             Pencil.
             Protractor.
             Ruler.
             Calculator.
             Set of weights.
             Weight hanger with string.
             Force table.
             Vector name tag (V-tag).
             IV. Procedure.
             1. Secure a Vector-tag from your teacher. A vector-tag has a vector quantity written on it prepared by the teacher.
             2. Draw the vector on your Vector-tag with the given scale. Follow all your instruction on your Vector-tag. Your Vector-tag is different from your classmates.
             3. From a group with three members only. Assign a leader who will check the vector drawn on your vector-tag.
             4. After checking, on your graphing paper, find the resultant vector of the three vectors using the graphical method. Use appropriate scale. Do it individually to check your answers. .
             5. After the graphical method, perform analytical method of finding the resultant to verify your answer on the graphical method.
             6. Record your data.
             7. Compute for the percentage error. Use the analytical value as the true value.
             8. Determine the equivalent mass of your vector/force on your Vector-tag. Using the force table determine the equilibrant of the three vectors of your group.
             9. Record your data.
             V. Data and Results.
             F1.
             (N).
             100g or 0.981N, 450 North of West.
             F2.
             (N).
             50g or 0.4905N, 300 North of East.
             F3.
             (N).
             30g or 0.2861N, 200 South of West.
             RESULTANT.
             Graphical.
             Analytical.
             Force Table.
             Percentage Error.
             a. Analytical Method vs. Graphical Method - _____________________.
             b. Analytical Method vs. Force Table - _____________________.
             VI. Computations.
             VII. Conclusion.
             VIII. Questions and Problems.
             1. How do resultant and equilibrant differ?.
             2. A student drives 15 km east, the 7 km south, then 8 km west. Find the magnitude and direction of the resultant displacement using analytical method.
             3. A surveyor is exploring the cave. He follows a passage 50 m straight east, then 150 m in a direction 300 west of north then 40 m at 450 west of south. After a fourth of unmeasured displacements he finds himself back where he started.