Fill in the Blanks Forces NBC LearnOnline version Forces NBC Learn by Wally Mason 1 inertia mass mass weight matter gravity inertia First unbalanced rest unbalanced NBC Learn Football : Inertia 1 . Newton's Law say that if an object is at then it requires an force to make it not be at rest or if an object is in motion it tends to stay in motion unless an force acts on it . ( 1 : 05 ) 2 . The natural resistance to an unbalanced force is known as . ( 2 : 00 ) 3 . Higher means more inertia . ( 2 : 25 ) 4 . Mass is the measure of how much an object has . . . ( 2 : 45 ) 5 . Weight is the measure of how strongly an objects mass is attracted by . ( 2 : 50 ) 6 . A body on earth would have the same as on the moon . ( 2 : 55 ) But its is more on earth than the moon . ( 3 : 00 ) 7 . Players with more mass have more and are harder to move . ( 3 : 05 )