Question

Which of the following is a possible unit of ultimate tensile strength?

Pascal per square meter (Pa/m2)


Gram per cubic centimeter (g/cm3)


Newton per square meter (N/m2)


Kilogram-meter per second (kg m/s)


No units

2 points

QUESTION 8

Select the definition that best describes the term “ultimate tensile strength.”


The stress at which a material begins necking.


A measure of the degree of plastic deformation that a material can withstand before failure.


The stress at which a material transitions from elastic to plastic deformation.


The maximum stress a material experiences before failure.


Indication of how much energy a material can absorb before failure.

Answer 1

Newton per square meter (N/m2)

Step-by-step explanation:

Required

Unit of ultimate tensile strength

Ultimate tensile strength (U) is calculated using:

`U = (Ultimate\ Force)/(Area)`

The units of force is N (Newton) and the unit of Area is m^2

So, we have:

`U = (N)/(m^2)`

or

`U = N/m^2`

Hence: (c) is correct