Which of the following gives the most complete and accurate description of the friction in the image? The rough texture of the ground creates a small amount of friction.
The smooth texture of the ground creates a greater amount of friction.
The push of the suitcases causes friction between the wheels and the ground.
There is friction between the suitcases and the ground and between the feet and the ground.

Mass is the amount of matter in an object.  weight is the measurement of the pull of gravity on an object.  say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165)  now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon.  however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant.  in conclusion it is possible for your weight to change as your mass remains constant. 

The answers is a nuclear changes

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