Youngs Modulus - Physics Jamb Past Questions and Answers

Question 1 :

• JAMB 2019

If the time of flight is 96seconds, calculate the horizontal range through the point of projection.

A. 84400m
B. 69000m
C. 61440m
D. 24000m

Question 2 :

• JAMB 1978

A piece of rubber 10cm long stretches 6mm when a load of 100N is hung from it. What is the strain?

A. 60
B. 6
C. 6 x 10^-2
D. 6 x 10^-3
E. 0.6

Question 3 :

• JAMB 1992

In an experiment to determine Young's Modulus for a wire, several loads are attached to the wire and the corresponding extension measured. The tensile stress in each case depends on the

A. Load and the extension
B. Load and the radius of the wire
C. Radius of the wire and the extension
D. Extension and the original length of the wire

Question 4 :

• JAMB 1997

A load of 20N on a wire of cross-sectional area 8 x 10^-7m², produces an extension of 10m². calculate Young's modulus for the material of the wire if its length is 3m

A. 7.0 x 10¹¹Nm^-2
B. 7.5 x 10¹¹Nm^-2
C. 8.5 x 10¹¹Nm^-2
D. 9.0 x 10¹¹Nm^-2

Question 5 :

• JAMB 2003

Given that young's modulus for aluminium is 7.0 x 10¹⁰Nm^-2 and density is 2.7 x 10³kgm^-3 find the speed of the sound produced if a solid bar is struck at one end with a hammer

A. 5.1 x 10³ms^-1
B. 4.2 x 10³ms^-1
C. 3.6 x 10³ms^-1
D. 2.8 x 10³ms^-1