Scalars and Vectors

We can describe how something moves with words, numbers, graphs, charts, or equations. To do that, we need to measure things with rulers and stopwatches. If I asked you how fast your car goes on the freeway, you could say fast or you could also say 55 mph. That 55 mph is a quantitative number that describes the motion of your car. The car travels 55 miles every hour. It’s also a scalar quantity, since you only mentioned the magnitude (how fast the car is going) and not it’s direction. A vector quantity is when you’d say 55 mph southeast. Vectors include a number and a direction. Scalars deal only with numbers.

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2 Responses to “Scalars and Vectors”
  1. Aurora says:

    No, our curriculum is stand-alone. However many of our users are coming to us from another curriculum, like Apologia that they’d like to finish using since they’ve purchased it and want to complete it. So I created conversion charts for members that request them which you can find archived here:

    Since there were a lot of requests for Apologia specifically, I created entire pages that walk you through the program that best fits the Module you’re working on. You can find them here:

  2. beth_goodwin says:

    Hi. I noticed you mentioned the Apologia Physical Science in conjunction with your Physics lessons. I think you said you were reworking some of their experiments. Is this meant to be a companion to your curriculum?

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