A. Write T if the statement is true and, if false, change the underlined word to make the statement true. 1. If an object changes its direction, the object is accelerating. 2. If an object slows down, the object is accelerating. 3. If an object speeds up, the object is accelerating. 4. If an object has a constant velocity, its acceleration is greater than zero. 5. Acceleration is mathematically defined as the rate of change in speed over time. 6. The SI unit for acceleration is m/s? 7. If vi and Vf have same directions, the object is speeding up. 8. If v; and vf have same directions, the object is slowing down. 9. Acceleration is scalar quantity. 10. If an object is moving with velocity of 10m/s and then stopped after 1s, its acceleration is 0 m/s2.​