Acceleration - 1/28/17


Summary: Acceleration is an example of a vector quantity, meaning that it measures both the magnitude and direction. Acceleration is the rate of which an object changes its velocity. You are accelerating when you change your speed or change direction. Even slowing down is a form of acceleration, for deceleration is negative acceleration. To model acceleration in a graph, you can make a velocity-time graph. The y-axis represents the change in velocity. The x-axis represents the time. To measure acceleration, you take the change in velocity and divided by time. Acceleration is measured in units of distance units of time squared.

S&EP-Using Mathematics: In the past few assignments and labs we have been doing, I have been seeing a lot of math used.  For instance, during the acceleration lab, I used math to find all the average velocities. This was done by adding all the velocities together and dividing by the number of velocities there were. As well as I used the formula of change in velocity divided by time to find acceleration. Math was also used in other area's, not just acceleration. While working with both speed and acceleration graphs I used to rise over run to calculate the slope of the line. Finally, I used the Pythagorean Theorem to solve for displacement. Even though I didn't use all of these this week, I have been using them a lot, which helped me realize how much math and science are related.

XCC - Structure and Function: The structure of an acceleration graph does affect the function. The x-axis represents time and the y-axis represents the change in velocity of the object. If this was any different, the graph would be incorrect. Acceleration can be measured, by solving change in velocity/time. The structure of an acceleration graph is set up to see the change in velocity of an object. For example, if the line plotted of a speed graph is straight horizontally it means the object is not moving, whereas on an acceleration graph this would mean that the object is moving at a constant speed. In an acceleration graph, the steeper the slope, the faster the object's speed is increasing.

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