9. What kind of quantity has both a magnitude and a direction? A Scalar B Vector C. Frame of reference 10. You runs 400 meters to your friend's house, turns around, and runs 400 meters back home. What is your distance? A Ometer B. 400 meter C. 800 meter 11. It is a scalar quantity that measures how fast an object is moving with respect to the distance travelled and the time. A Speed B. Velocity C. Acceleration 12. Which of the following formula is correct? A. speed = distance x time B. speed = distance divide time C. speed time divided by distance 13. What is velocity? A. the quickness of an object B. the location of an object C. speed with a given direction? is expressed when speed or direction both change. A. Speed B. Velocity C. Acceleration 15. Why does a car accelerate as it round a corner at a constant speed? A. its direction changes B. It slows down C. It speeds up
