Question Library

When a spiral spring is compressed by an external force of 200 N, it stores 0.16 J of energy. What amount of energy will it store when compressed by an external force of 700 N?

The stress experienced by a wire of diameter \(\frac{\text{y}}{\pi}\)m loaded by a weight y\(^2\)N is

The dimension of young's modulus,E is given by

The property by which a material returns to its original shape after the removal of force is called

A force of 10N extends a spring of natural length 1m by 0.02m, calculate the length of the spring when the applied force is 40N.

A wire of radius 0.2 mm is extended by 0.5% of its length when supported by a load of 1.5 kg. Determine the Young's modulus for the material of the wire. [Take g = 10 ms\(^{-2}\)]

The potential energy in an elastic string of force constant k, which has an extension X is?

If the stress on a wire is 10\(^{7}\)NM\(^{-2}\) and the wire is stretched from its original length of 10.00m to 10.05m. The young's modulus of the wire is?

(a) Define strain. (b) A rubber band is stretched to twice its original length. Calculate the strain on the rubber band.

If a wire 30 cm long is extended to 30.5 cm by a force of 300 N. find the strain energy of wire

If a load of mass 10N stretched a cord by 1.2cm, what is the total work done?

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?

A spring of force constant 500 Nm\(^{-1}\) is compressed such that its length shortens by 5cm. The energy stored in the spring is?