In this experiment, you will investigate the motion of a wooden strip. (a) Set up the apparatus as shown in Fig. 1.1. The longer nail should be held in the boss and be placed through the top hole in the strip. The shorter nail should be placed through the bottom hole in the strip to support the slotted mass. The distance between the longer nail and the line on the strip is $x$, as shown in Fig. 1.1. Measure and record $x$. $x$ = \_\_\_\_\_\_ (b) Pull the bottom of the strip…

Physics 9702/31 — October/November 2018

Cambridge AS Level · Advanced Practical Skills · worked solutions for every part, with the mark scheme

questions

marks

120

minutes

Topics Manipulation, Measurement and Observation · Presentation of Data and Observations · Analysis, Conclusions and Evaluation

Q1Manipulation, Measurement and ObservationPresentation of Data and ObservationsAnalysis, Conclusions and EvaluationFree sample

In this experiment, you will investigate the motion of a wooden strip.

(a)

Set up the apparatus as shown in Fig. 1.1.

Fig. 1.1

The longer nail should be held in the boss and be placed through the top hole in the strip.
The shorter nail should be placed through the bottom hole in the strip to support the slotted mass.
The distance between the longer nail and the line on the strip is $x$ , as shown in Fig. 1.1.

Measure and record $x$ .

$x$ = ______

(b)

Pull the bottom of the strip through a short distance, as shown in Fig. 1.2.

Fig. 1.2

$T$ = ______

(c)

Vary $x$ by placing the longer nail through different holes in the strip. Measure and record $x$ and $T$ . Repeat until you have six sets of values.

Record your results in a table. Include values of $T^2x$ and $x^2$ in your table.

10M

(d)

(i)

Plot a graph of $T^2x$ on the $y$ -axis against $x^2$ on the $x$ -axis.

(ii)

Draw the straight line of best fit.

(iii)

Determine the gradient and $y$ -intercept of this line.

gradient = ______
$y$ -intercept = ______

(e)

It is suggested that the quantities $T$ and $x$ are related by the equation

T^2x = Ax^2 + B

where $A$ and $B$ are constants.

Using your answers in (d)(iii), determine the values of $A$ and $B$ . Give appropriate units.

$A$ = ______
$B$ = ______

1 more questions

Q2Manipulation, Measurement and Observation · Analysis, Conclusions and Evaluation · Presentation of Data and Observations20M

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