Speed and Velocity | Interpreting distance vs. time graphs

Difference Between Speed and Velocity by Addison Wesley

I am sure you have all heard of speed like the car is going 30 mph or the person is running 5 m/s. But have you heard of velocity? Velocity is the slope of the line at different points on a direction vs. time graph. The velocity is otherwise known as rise over run, where the rise is the y-axis and the run is the x-axis. Speed and velocity are similar but still different. Speed is a scalar quantity because it measures time over distance, but not direction, whereas Velocity, a vector quantity, measures direction as well as speed. Velocity is the line on a direction vs. time graph. A direction vs. time graph will always have the direction or position factor on the y-axis and time on the x-axis. To interpret these graphs all you need to do is to figure out which direction the object is moving relative to the reference point, and how fast the object is moving. First, find your reference point, or this example we'll call it (0,0) Then look at the line, is it sloping up or down from your reference point? This means that it is moving away from your reference point. If it is a line parallel to the x-axis this means that the object has stopped moving at whatever position that they are from your reference point, and not moved for that period of time. Once you know this, you can interpret what the object is doing and how it is moving. But you still have to figure out the speed that your object is moving at. This would be the slope of the line or rise over run, but you just won't be adding the direction. The slope of your line can be calculated using this simple equation: (final y position - starting y position)/(final x position - starting x position). Then, to find the units, look at the bottom of the graph on the x-axis to find the unit of time and then look to the y-axis to find the unit of movement. There you have it, you can now interpret these graphs, you can add in the direction of movement to find the velocity.

S&EP
SP: Analyzing Data

Interpreting graphs is one of many forms of analyzing data. Interpreting graphs can help scientists and mathematicians to figure out important details and analyze data. Graphs are a way that scientists can organize and look at all f their data in a way that they can easily understand. Being able to interpret and read graphs is very useful for when you are looking at your or other scientist's, data.  Being able to do all this is a very important skill that is used a lot in the fields of science and mathematics.

XCC
XCC: Structure and Function

Everything thing has a very unique structure and function that fits its needs. This is especially seen in families. Every family has it's own structure and functions in a different way that is suitable for who they are and what they need. But structures and their functions can change. This can be most widely observed in families around the holidays. around the holidays. Lots of different people celebrate different holidays around winter time, even is families celebrate the same holiday, they most likely celebrate it differently. The structure and function of families can change during the holiday season, spending more time with family could cause the structure of the family to strengthen additionally, hosting people over the holiday season can change the function of the hosting family to get prepared and make sure that everything is ready. Structure and function are a huge part of science and show us how things works, families of every kind are a great example of structure and function and how things work, we can learn a lot from families if only we would look further into it.