Directions: Determine whether the italicized term makes each statement true or false. If the statement is true, write the word true in the blank. If the statement is false, write in the blank the term that makes the statement true. 1. Objects fall toward Earth at a rate of 9.8 m/s' because of centripetal force. 2. F = ma represents Newton'ssecond law of motion. 3. Acceleration toward the center of a curved or circular path is called gravitational acceleration. 4. The net force on an object is the combination of all the forces acting on the object. 5. The force of gravity acting upon an object is the object 'smass. 6. Friction is the force that opposes motion between surfaces that touch each other. 7. To every action force there is an equal and opposite reaction force is the law of conservation of momentum. 8. According to the law of conservation of momentum, momentum lost equals momentum gained. 9. The force keeping a ball on a string moving in a circle is rolling friction. 10. Field is the tendency of an object to resist a change in motion. 11. Air resistance acts in the opposite direction to that of an object in motion. 12. Terminal velocity is the highest velocity that a falling object will reach. 18 Forces and Newton's Laws