Question

describe how do u plot a graph in physics

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Answer 1

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Answer 2

Plotting a graph :-

A graph is plotted to display the relation between two quantities generally one of the two quantities changes independently and the other quantity depends on it.

For example:-

we have two quantities time and velocity. Time is the independent quantity and velocity depends on it, number of overs is the independent quantity and score depends on it. To plot a graph from a table of values the following steps are needed :-

(a). Choosing the axes

Draw two perpendicular lines crossing each other at a point . Each line represents one of the two quantities to be plotted ,generally a horizontal line from left to right is drawn to represent the independent quantity and a perpendicular line is drawn to represent the dependent quantity. These lines are called the x - axis and the y - axis , or the horizontal axis and the vertical axis respectively.

(b). Choosing the scale

The size of the paper on which a graph is drawn is limited one of the available length of the axis values are marked at equal distances, this is done in such a way that all the values of the quantity represented on the axis can be accommodated in the available length.

(c). Plotting the point

Each set of values of the two quantities is represented by a point on the graph. For example , the set `8 overs , 12'runs is represented by the point A in the graph to get this point, we mark the point corresponding to a8 overs on the over axis and draw a perpendicular on the over axis at this point. Similarly we mark the point corresponding to 12 runs on the score axis and draw a perpendicular on the score axis at this point . The point of intersection of this perpendicular is the point A representing the set.

(d). joining the points

Once all the points corresponding to the available sets of values of the quantities are plotted ,they are joined by a smooth curve to get the graph