Question 9
WAEC
•
2025
•
PHYSICS
•
essay
Question Parts
(
a
)
State one difference between deformation and elasticity.
(
b
)
The following results were obtained from an experiment performed on a spiral spring: \( \begin{array}{|l|l|l|l|l|l|l|l|} \hline \text{Stretching force/N} & 0.0 & 1.0 & 2.0 & 3.0 & 4.0 & 5.0 & 6.0 \\ \hline \text{Extension/ cm} & 0.0 & 5.0 & 10.0 & 15.0 & 20.0 & 25.0 & 30.0 \\ \hline \end{array} \) (i) Plot a graph of stretching force on the vertical axis and extension on the horizontal axis (ii) Determine the slope, \( s \), of the graph (iii) What does the slope of the graph represent?
(
c
)
A rubber gun is used to project a stone of mass 40 g. If the rubber of the gun has an elastic constant \( 350 \mathrm{Nm}^{-1} \) and was stretched 4 cm, calculate the stone's speed of projection.
(
d
)
(i) Define bulk modulus. (ii) A vertical wire is suspended from a support with a mass of 2.5 g attached to the free end to stretch the wire. If the load on the wire extends it by 2 \( cm \), determine the energy gained by the wire. \( \left[g=10 m s^{-2}\right] \)
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About This Question
This is
Waec
2025
Physics
Question 9.
It is one of the
essay
questions from the
2025
Waec
Physics
examination.
The question covers
General
.