Question 1

Find the tensile load that stretches a 1.50 m steel wire by 0.250 mm, if the cross-sectional area of the wire is 0.450 mm² and Young's Modulus of the steel is 215 GPa.

Accepted Answer

16.1 N

Question 2

Young's Modulus for yellow brass is 105 GPa. Find the length of a yellow brass rod of cross-sectional area 0.500 mm² that extends by 0.150 mm when stretched by a 2.10 N tensile load.

Accepted Answer

3.75 m

Question 3

Find the cross-sectional area of a 2.50 mm thin bronze wire that stretches by 0.240 mm when stretched by a 4750 N tensile load, if Young's Modulus of the bronze is 95.0 GPa.

Accepted Answer

0.521 mm² ( m²)

NSMQ 2024 Physics Fundamentals Round Set 20

Question 1