Question

Lungs expand and contract while we inhale and exhale air during breathing. The fore involved in this activity is called
A. Breathing force
B. Muscular force
C. Kinetic force
D. Pulmonary force

Answer 1

Hint: Force is the push and the pull on an object. Since its magnitude and direction both are important it is the vector quantity. We have various forms of the forces. Here we will refer to all the terminology of the given multiple options of the types of forces and will decide accordingly the correct type of force for the given activity.

Complete answer:
Breathing force is the mode of breathing which occurs during the exercise or any activity such as singing and dancing.
Force which is formed due to the action and the involvement of the muscles is known as the muscular force. In the process or the activity of breathing the external and internal involvement of the muscles so, lungs expand and contract while breathing due to the muscular force.
The kinetic force is the force which acts between the moving surfaces. A moving body experiences the force in the opposite direction of its movement on the surface.
Pulmonary force is the force which measures the lung’s ability to stretch and expand.

So, the correct answer is “Option B”.

Note:
Know in detail the different types of force and the major and minor difference among them.Force is the product of mass into acceleration and is measured in kilogram into metre per Second Square and its SI (system international) unit is Newton.Also, remember that in the presence of the increased airway resistance or the decreased lung compliance, the pressure is required and hence the work of breathing is increased.