Physics Practice Test – Elasticity (Questions with Answers and Explanations)

A string of length 4 m is extended by 0.02 m when a load of 0.4 kg is suspended at its end. What will be the length of the string when the applied force is 15 N? [g = 10 ms^-2] (JAMB 2007)

If a load of mass 10 N stretches a cord by 1.2 cm, what is the total work done? (JAMB 2009)

The diagram above represents the graph of the force (F) applied in stretching a spiral spring against the corresponding extension (X). The force constant of the spring is ______ (JAMB 2009)

A copper wire was subjected to a tensile stress of 7.7 x 10⁷ Nm^-2. Calculate the tensile strain of the wire [Young Modulus = 1.1 x 10¹¹ Nm^-2] (JAMB 2011)

A string of length 5 m is extended by 0.04 m when a load of 0.8 kg is suspended at the end. How far will it extend if a force of 16 N is applied? [g = 10 ms^-2] (JAMB 2017)