One of the effects of a force is to change the momentum. Define the quantity related to this and explain it for a variable force. Usually when do we define it instead of using the force?

Define buoyant force.

Define and explain moment of force.

Define Earth's gravitational force

Define force constant? State its units and dimension.

Define and explain centrifugal force.

Define write the laws: force

Define : Centripetal force

Answer the following questions: Define force.

Answer the following questions : Study the following principle and answer the questions. A force is excreted on a current - carrying conductor placed in a magnetic field. The direction of this force depends on both the direction of the current and the direction of the magnetic field . This force is maximum when the direction of the current is perpendicular to the direction of the magnetic field. By which law can we determine the direction of the force excreted on the current carrying conductor ?

Will the direction of the gravitational force change as we go inside the earth?