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Force means strength or energy as an attribute of physical action or movement.
For example, He used all his force opening the window.
http://www.dictionary.com/browse/force?s=t

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Gravity means the force of attraction by which terrestrial bodies tend to fall toward the center of earth.
For example, The force that causes a ball you throw in the air to come down again
http://www.dictionary.com/browse/gravity?s=t

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Velocity means rapidly of motion or operation.
For example, A high wind velocity.
http://www.dictionary.com/browse/velocity?s=t

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Motion is the action or something being moved or the process of moving.
For example , a bodily movement or change of posture.
http://www.dictionary.com/browse/motion?s=t

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Acceleration means the act of speed or velocity.
For example, The car accelerated as it was changing its direction.
http://www.dictionary.com/browse/acceleration

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Friction means surface resistance to relative motion, as of a body sliding or rolling.
For example, The surface deformation of objects

http://www.dictionary.com/browse/friction?s=t

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A force is a push or a pull that acts upon an object as a results of its interaction with another object.
For example, As you sit in your chair, your body acts on the chair with one force, and the chair reacts on your body with yet another force.
http://www.physicsclassroom.com/class/newtlaws/Lesson-4/Newton-s-Third-Law

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Inertia means inertness, especially with regard to effort, motion, and action.
For example, Tightening of seat belts in a car when it stops quickly.
http://www.dictionary.com/browse/inertia

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Mass is the body of coherent matter, it usually identified shape and often of considerable size.
For example, A mass of dough or coins.
http://www.dictionary.com/browse/mass?s=t

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Newton's second law of motion can be formally stated as follows: The acceleration of an object as produced by a net force.
For example,  If you use the same force to push a truck and push a car, the car will have more acceleration than the truck, because the car has less mass.
http://study.com/academy/lesson/newtons-third-law-of-motion-examples-of-the-relationship-between-two-forces.html

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The focus of Lesson 1 is Newton's first law of motion - sometimes referred to as the law of inertia.
For example,  If you slide a hockey puck on ice, eventually it will stop, because of friction on the ice.
http://www.physicsclassroom.com/class/newtlaws/Lesson-1/Newton-s-First-Law