Properties of matter questions | form five Physics

Briefly explain why the stretching of a coil spring is determined by its shear modulus.

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UNSOLVED

A copper wire of negligible mass , 1m long and cross-sectional area 10^-5m² is kept on a smooth horizontal table with one end fixed. A ball of 1kg is attached to the other end. The wire and the ball are rotating with an angular velocity of 35rad/s. If the elongation of the wire is 10^-2m, find Young`s modulus of wire. If on increasing the angular velocity to 100rad/s, the wire breaks down, find the breaking stress.

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UNSOLVED

Differentiate bulk modulus from shear modulus.

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UNSOLVED

Two wires , one of steel and one of phosphor bronze each 1.5m long and 2mm diameter are joined end to end as a composite wire of length 3cm. What tension in the composite wire will produce total extension of 0.064cm?.

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UNSOLVED

Define the term proportional limit,elastic limit,yield point and elasticity.

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UNSOLVED