Learn Extracted exam questions A-Level Physics 9702 Physics November 2025 Question Paper 34
9702 Physics November 2025 Question Paper 34
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In this experiment, you will investigate the equilibrium of forces.
Assemble the apparatus as shown in Fig. 1.1.
Adjust the height of the upper boss so that the wooden strip is parallel to the bench.
The distance between hole S and the lower nail is $W$.
Measure and record $W$.
$W = \hrulefill$
The distance between the two nails is $N$.
Measure and record $N$.
$N = \hrulefill$
The length of the coiled part of the spring is $L$, as shown in Fig. 1.1.
Measure and record $L$.
$L = \hrulefill$
Calculate $Z$, where
$Z = \hrulefill$
Change $W$ by moving the lower nail to another hole in the wooden strip. Adjust the height of the upper boss so that the wooden strip is parallel to the bench.
Measure and record $W$, $N$ and $L$. Repeat until you have six sets of values. Record your results in a table. Include values of $Z$ in your table.
Plot a graph of $L$ on the $y$-axis against $Z$ on the $x$-axis.
Draw the straight line of best fit.
Determine the gradient and $y$-intercept of this line.
gradient = \hrulefill $y$-intercept = \hrulefill
It is suggested that the quantities $L$ and $Z$ are related by the equation
where $a$ and $b$ are constants.
Use your answers in \textbf{(c)(iii)} to determine the values of $a$ and $b$. Give appropriate units.
$a =$ \hrulefill $b =$ \hrulefill
In this experiment, you will investigate the motion of a sphere rolling along a track.
You are provided with a length of plastic channel. When the channel is positioned with its open side at the top, it forms a track with a pair of rails along which a sphere can roll.
The distance between the rails is $x$.
Measure and record $x$.
$x =$ \hrulefill
Set up the apparatus as shown in Fig. 2.2.
You are provided with two spheres.
Place the smaller sphere on the track. If necessary, adjust the position of the wooden block until the sphere is able to roll along the full length of the track and into the box.
Secure the block to the track with a small piece of adhesive putty as shown in Fig. 2.3. \textbf{The block and track must remain in these positions for the rest of the experiment.}
The height of the raised end of the track above the bench is $h$, as shown in Fig. 2.3.
Measure and record $h$.
$h = \hrulefill$
Estimate the percentage uncertainty in your value of $h$. Show your working.
percentage uncertainty = \hrulefill %
Measure and record the diameter $d$ of the smaller sphere.
$d = \hrulefill$
Calculate $1 - \left(\frac{x}{d}\right)^2$.
$1 - \left(\frac{x}{d}\right)^2 = \hrulefill$
Place the smaller sphere on the track at the raised end.
Release the sphere.
The time taken for the sphere to roll along the track into the box is $t$.
Take measurements to determine $t$.
$t = \hrulefill$
Repeat \textbf{(c)} using the larger sphere.
$d =$ \hrulefill
$1 - \left(\frac{x}{d}\right)^2 =$ \hrulefill
$t =$ \hrulefill
It is suggested that the relationship between $t$, $h$, $x$ and $d$ is
where $k$ is a constant.
Using your data, calculate \textbf{two} values of $k$.
first value of $k =$ \hrulefill
second value of $k =$ \hrulefill
Justify the number of significant figures that you have given for your values of $k$.
It is suggested that the percentage uncertainty in the values of $k$ is 30%.
Using this uncertainty, explain whether your results support the relationship in \textbf{(e)}.
Describe \textbf{four} sources of uncertainty or limitations of the procedure for this experiment.
For any uncertainties in measurement that you describe, you should state the quantity being measured and a reason for the uncertainty.
- \hrulefill
- \hrulefill
- \hrulefill
- \hrulefill
Describe \textbf{four} improvements that could be made to this experiment. You may suggest the use of other apparatus or different procedures.
- \hrulefill
- \hrulefill
- \hrulefill
- \hrulefill