Question

Force that enables us to perform all the activities like movement or bending of the body is:
(A) Gravitational Force
(B) Frictional Force
(C) Muscular Force
(D) Magnetic Force

Answer 1

Hint To answer this question, we need to evaluate the applications of the forces which will help us to determine which force is used in which field. Using this information, we will be able to reach the correct answer.

Complete step by step answer
Every force in nature has its use in specific applications.
Gravitational Forces are very weak forces and tend to dominate on the bodies that have a mass comparable to the planets and stars. It is an attractive force that determines the motion of celestial bodies and tides on Earth. Thus, gravitational forces are surely not responsible for activities like movement or bending of the body.
Hence option A is incorrect.
Frictional Forces arise due to the relative motion between two bodies in contact. It always acts in a direction such that this relative motion is opposed. Thus instead of enabling performance of activities relating to movement, they cause hindering of movement. Thus, frictional forces are definitely not responsible for the ability of movement and bending.
Hence option B is also incorrect.
Magnetic Forces arise due to magnetic fields and usually arise in magnetic and moving charged particles. Such forces are present in the Earth’s core that cause spinning of Earth on its axis and these forces also help animals and birds in migration. These forces are also responsible for the functioning of many electrical appliances. Thus these forces are not basically responsible for enabling our body to perform actions like movement and bending.
 Option D is also an incorrect option.
Muscular Forces are the forces exerted by the muscles of our body to perform a certain action or movement. Thus, moving on the ground requires muscular forces by the leg muscles, to lift heavy objects the force by muscles of arms and hands are required and to bend downwards, the forces by muscles of other parts of our body are required. So the muscular forces are the forces which enable us to perform all activities.
Hence, the correct answer is option C.

Note
Do not be confused that the muscular forces are the form of the other forces such as frictional forces, or the gravitational forces. A muscular force is totally different from these forces.