DRAWING GRAPHS (THE WHOLE TRUTH... Graphs are generally used to determine relationships between quantities. For the grap

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DRAWING GRAPHS (THE WHOLE TRUTH... Graphs are generally used to determine relationships between quantities. For the graph to be used effectively for scientific investigation, it is important for it to be plotted unambiguously and accurately. To do this, we follow a simple procedures 6.1 Set out values of the two quantities in a table Label each column each physical quantity, symbol and unit (see table 1). Make sure that readings are correctly recorded Note. As an example we shall use information (data) obtained in an experiment in which we determine the earth's gravitational acceleration. In this experiment o pendulum is made to make small swings for a certain number of oscillations, at especific length. The period of oscillation of the swings and the pendulum length of motion are recorded. The process is repeated for different lengths (see Table 1) Table 1 Length, Lom) Period, Period, Tis" 3.50 855 1.87 75.0 1.72 2.96 60.3 1.56 2.43 50.1 1.39 1.93 40.5 131 1.72 306 107 1:34 6.2 Clearly write the title of the graph The title must be written as: Graph of the dependent variables the independent variable. The axes must be such that the dependent variable for the effect)is along the y-axis or vertical axis and the independent quantity the cause") is along the xoxis or horizontal axis. In the case of our experiment, the pendulum length is an independent variable, while the period and period squared are dependent variables. In a case in which we intend to determine acceleration, we shall draw a graph with length and period squared. Thus, the graph title is Graph of periodsaared vs length 6.3 Choose convenient scales for the axes so that the graphs will cover a fait portion of the page in each direction. Make 1 division 1 cm on metric graph paper) equivalent to 1, 2,5 or 10 units of the quantity plotted with appropriate powers of 10). Avoid a scaling like I division 3 or 4 units as this makes plotting and reading of information difficult Do not include the origin unless the graph is expected to pass through it or unless asked for Label each axis, with the name of variable, symbol and unit, es Period),
Not yet answered Question 1 Marked out of 1.00 State the number of significant figures in 123 Answer: Answer Question 2 Not yet answered Marked out of 1.00 State the number of significant figures in 12.30 Answer: Answer Not yet answered Question 3 Marked out of 1.00 State the number of significant figures in 0.0394 Answer: Answer Question 4 Not yet answered Marked out of 1.00 State the number of significant figures in 90.210
Question 4 Not yet answered Marked out of 1.00 State the number of significant figures in 90.210 Answer: Answer Question 5 Not yet answered Marked out of 1.00 State the number of significant figures in 52 x 102 Answer: Answer Question 6 Not yet answered Marked out of 1.00 State the number of significant figures in 0.230 x 10-1 Answer: Answer
Question 7 Not yet answered Marked out of 1.00 Round-off 2345.31 to four significant figures Answer: Answer Question 8 Not yet answered Marked out of 1.00 Round-off 83.25 to three significant figures Answer: Answer Question 9 Not yet answered Marked out of 1.00 Round-off 7.48503 to four significant figures Answer: Answer Question 10 Not yet answered Marked out of 1.00 Round-off 1.005005 to three significant figures
Using the formula of the line of best fit of the graph, what displacement in m was traversed by the youth after 4.5 s? (round off answer to 4 significant figures). Answer: Answer Question 13 Not yet answered Marked out of 1.00 Make use of the graph plotted in Q11. Using the formula of the line of best fit of the graph, what was the time in s when 10 m were traversed? (round off answer to 1 significant figure ) Answer: Answer
Question 12 Not yet answered Marked out of 1.00 Make use of the graph plotted in Q11. Using the formula of the line of best fit of the graph, what displacement in m was traversed by the youth after 4.5 s? (round off answer to 4 significant figures). Answer: