Question

Which of the following can be the unit of stress?

1. Pa or N/m²
2. psi or pound of force/square inch
3. MPa or 10⁶ Pa
4. GPa or 10⁹ Pa
a. 1, 2
b. 2,3
c. 3,4
d. 1, 2, 3, 4

Answer 1

The unit of stress can be measured in pascals or newtons per square meter (Pa or N/m²), pounds of force per square inch (psi), megapascals (MPa), and gigapascals (GPa).

Step-by-step explanation:

The unit of stress is a measure of the force acting on a specific area. The correct options for the unit of stress are: 1. Pa or N/m², 2. psi or pound of force/square inch, 3. MPa or 10⁶ Pa, and 4. GPa or 10⁹ Pa.

The pascal (Pa), which is equal to one newton per square meter (1 N/m²), is the International System of Units (SI) unit for stress. The pound of force per square inch (psi) is commonly used in the United States, while the MPa and GPa are larger units used for high-stress applications.