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Physics

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AP Physics
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Relative velocity

Relative velocity in 1 dimension

Most people find relative velocity to be a relatively difficult concept. In one dimension, however, it's reasonably straight-forward. Let's say you're walking along a road, heading west at 8 km/hr. A train track runs parallel to the road and a train is passing by, traveling at 40 km/hr west. There is also a car driving by on the road, going 30 km/hr east. How fast is the train traveling relative to you? How fast is the car traveling relative to you? And how fast is the train traveling relative to the car?

Motion in two dimensions

9-15-99

Sections 3.5 - 3.7
Extending things from 1 dimension

In 1 dimension, we wrote down some general equations relating velocity to displacement, and relating acceleration to the change in velocity. We also wrote down the four equations that apply in the special case where the acceleration is constant. We're going to do the same thing in 2 dimensions, and the equations will look similar; this shouldn't be surprising because, as we will see, a two (or three) dimensional problem can always be broken down into two (or three) 1-dimensional problems.

Graphical analysis and Vectors

9-13-99 Sections 2.8 - 3.4 Graphs Drawing good pictures can be the secret to solving physics problems. It's amazing how much information you can get from a diagram. We also usually need equations to find numerical solutions. Graphs are basically pictures of equations. Learning how to interpret these pictures can really help you understand physics. Let's return to our last example, a ball thrown vertically upward with an initial speed of 12 m/s. The only acceleration we have to worry about is the acceleration due to gravity, 9.8 m/s2 down.

Motion in one dimension

9-8-99

Sections 2.1 - 2.5
Motion in 1 dimension

We live in a 3-dimensional world, so why bother analyzing 1-dimensional situations? Basically, because any translational (straight-line, as opposed to rotational) motion problem can be separated into one or more 1-dimensional problems. Problems are often analyzed this way in physics; a complex problem can often be reduced to a series of simpler problems.

Physics Notes

Here you will find AP Physics notes that cover both the AP Physics B and AP Physics C exam. The AP Physics Outlines are split up by category with subtopics underneath. These AP Phsyics outlines will help you prepare for the AP Physics exam.

AP Physics

This course can help prepare students who wish to continue their social sciences education after high school, as well as students who wish to perform exceptionally well on the SAT exam. The level of aptitude in this subject will assist students wishing to excel on the SAT and in college courses.

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