Definition of force

____________________ are ____________________ characterised by their ____________________ or intensity , and by their ____________________ . Are represented by ____________________ .

Forces can :
- ____________________ an object ____________________ ____________________ .
- ____________________ an object ____________________ ____________________ .
- ____________________ an object .
- ____________________ the ____________________ a body is moving in .

If the ____________________ of a stone is 100 kg , and knowing that the gravitational ____________________ on Earth is 9 . 8 m / ____________________ , the weight or ____________________ that attracts the stone to the ____________________ is equal to ____________________ ____________________ .

If the ____________________ of a stone is 100 kg , and knowing that the ____________________ acceleration on Moon is ____________________ . ____________________ m / ____________________ , the ____________________ or force that attracts the stone to the ____________________ is equal to 162 ____________________ .

If the mass of a ____________________ is 100 ____________________ , and knowing that the gravitational acceleration on Mars is 3 . 71 m / s2 , the weight or force that ____________________ the stone to Mars is equal to ____________________ N .