Physics Practical Theory questions

Question 1

Justify the number of Significant Figures given in your values of (Dependent Variable).

Answer 1

Since (Independent Variable) is in … SF, and (Independent Variable 2) is in … SF, hence (Dependent Variable) is in (lowest SF).

Question 2

Suggest whether your experiment support the suggested relationship. Justify your conclusion.

Answer 2

Criterion is percentage difference in (Dependent Variable) less than or equal to percentage uncertainty in (Independent Variable).

Percentage difference in (Dependent Variable) = First value - Second value divided by First value.

Question 3

Suggest one significant source of uncertainty/ error in this experiment.

Answer 3

1) Source 2) Cause 3) Error/ What value it affects.

Question 4

Suggest an improvement that could be made to the experiment to reduce the uncertainty identified.

Answer 4

1) Action 2) Reason + improvement it will make to the value.

Question 5

Comment on any anomalous data or results you may have obtained. Explain your answer.

Answer 5

There are no anomalous data as all the plotted points lie close to the best fit line. OR
Point (x,y) is furthest from the best fit line, thus it is an anomalous point.

Question 6

State whether this the point Z given agrees with the pattern of the other points on your graph. Use your values to justify your statement.

Answer 6

The range of measurement is … , thus Z lies … from the best-fit line which is less than … Hence, Z agrees with the pattern of other points on the graph.