Today we
started to look at specific types of forces. We began with an examination
of the force of gravity. This is also called an object's weight, although
not to be confused with an object's mass. The one lesson I wanted
students to learn today is that mass and weight do not mean the same thing.
Mass is a measure of the amount of matter an object has whereas weight is
the force of gravity on that object. One is measured in kilograms, the
other in newtons.
We learned about the differences between weight and the normal force and also learned what exactly a bathroom scale is measuring. The concept of apparent weight is really important for students to understand. This was all covered on slides 36 to 42. Students were given some time to work on Assignment 2.4 at the end of class, which we will take up tomorrow.
We learned about the differences between weight and the normal force and also learned what exactly a bathroom scale is measuring. The concept of apparent weight is really important for students to understand. This was all covered on slides 36 to 42. Students were given some time to work on Assignment 2.4 at the end of class, which we will take up tomorrow.
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