Victor's Science Blog

Weekly Blog : Victor N. 8B Image Location Summary Acceleration is an example of a vector quantity, that measure the magnitude and direction. This is the rate of which an object changes its velocity. You are accelerating when you change your speed or change your direction. You can make a case that slowing down and changing direction is not acceleration, but acceleration is change in velocity. Don't be mistaken that 'speeding down' is deceleration, for deceleration is negative acceleration. To model acceleration in a graph, you can make a velocity-time graph. The rise / the y-axis represents the change in velocity. The run/x-axis represents the time. To measure acceleration, you take the change in velocity and divided by time. In conclusion, acceleration is a vector quantity representing the change in velocity. SP2 - Using Models This week I used to models to demonstrate my learning of acceleration. I used models on Wednesday and Thursday when we did the Accel...

Weekly Blog : Victor N. 8B Distance-Time Graph Image Location Summary There are different ways to look at speed, how fast an object is moving. But there is one way to find speed. To find speed, you take the distance and divide the time. This is rise over the run, which forms a triangle. You can model speed using a graph or a table. As seen above, the rise / the y-axis represents the distance from the initial point. The run/x-axis represents the time. The steeper the slope of the graph, the faster the object is moving. When the slope is moving up, or in the positive direction, the object is moving to the final point. When the slope is moving down, or in the negative direction, the object is moving back to the initial point. As you can see, a graph is one to find speed, how fast an object is moving. You can find speed, by dividing distance/time. SP2 - Using Models Distance-Time Graph Activity This week, I worked deeper on how to find speed. I used models when my table ...

Weekly Blog : Victor N. 8B Image of Distance (Left) and Displacement (Right) Image Location : Distace and Displacement Document  Speed-time graph Image Location Summary Motion is the change in position of an object over time. It can be described in terms of scalar and vectors, distance and displacement, and speed and velocity. A scalar quantity is measuring just the magnitude, which is a number. A vector quantity is measuring both the magnitude and the direction. When you are referring to the distance of an object, you need to identify the reference point to see if it's moving. Distance is an example of a scalar quantity, and measures how much an object has moved during motion. An example of distance is "32 kilometers." Displacement is an example of a vector quantity, and measures the shortest interval connect the initial and final points that are straight line. An example of displacement is "66 kilometers east." Speed is an example of a scalar qu...