velocity or speed, An object undergoes acceleration when one of these changes., opposite, when a moving object slows down, its acceleration and direction are ______, x-axis, On a speed time graph, speed is plotted where, y-axis, On a speed time graph, time is plotted where, increasing speed, On a speed time graph, the speed is shown by a line going upward from the left, decreasing speed, On a speed time graph, the speed is shown by a line going downward to the right., constant speed, On a speed time graph, this speed is represented by a horizontal line, acceleration, the change in velocity over a period of time, when velocity changes direction, acceleration increases, Why is a car rounding a curve accelerating, even if it is moving at a constant speed?, a=acceleration, vf= final velocity, vi= initial velocity, t=total time, What does each letter in the following equation stand for: a = (vf – vi)/t?, car speeding up, train going around a curve, a leaf falling from a tree, a car stopping, a ball rolling down a ramp, ways an object can accelerate:, yes, because when direction changes, acceleration changes, Does a roller-coaster car have acceleration as it goes through a turn?, m/s2, Acceleration is measured in these units, inside of the curve along which the object is moving, when an object changes direction, the acceleration arrow points where?.

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