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5/14 MCQs for:
Elasticity

An aluminum wire 2.0 m in length and 2.0 mm in diameter supports a 10.0-kg mass. What is the elongation of the wire?

(The Young's modulus for an aluminum is 7.0 x 1010 N/m²).

Strain is:

A 5000-N force compresses a steel block by 0.0025 cm.

How much force would be needed to compress the block by 0.0125 cm?

A wire of diameter 0.20 mm stretches by 0.20% when a 6.28N force is applied.

What is the elastic modulus of the wire?

A mass is hung from identical wires made of aluminum, brass, copper, and steel.

Which wire will stretch the least?