1. the wind pushing on a sail is a force because the air molecules have to touch the sail molecules to create the force. and transfer momentum. 2. a is the result of an acceleration applied to a mass. 3. momentum is different than inertia because inertia doesn't change with motion but momentum depends on both mass and l 4. a bowling ball transferred part of its to the bowling pins as it knocked them down. 5. the spacex falcon 9 has a thrust (a type of force) of 7,607 this is almost 2 million pounds. 6. a circus strongman pushes on a wall and the wall pushes back on him with an equal but opposite . 7. the four fundamental forces of the universe are the gravitational force, the the strong nuclear force, and the weak nuclear force. 8. the spacex falcon 9 rocket takes off slowly at first because it has to overcome its 9. the nucleus of an atom is held in a tiny space amounting to only 0.01% of the size of the atom by the strong and weak 10. a magnetic force is a force because the magnet pulls on iron from a distance. a. momentum b. inertia c. newton d. force e. electromagnetic force f. nuclear forces g. noncontact h. contact i. reaction forcs j. velocity