Units 1, 2, and 3

With the "first quarter" finished, here is a summary of what we learned so far in physics. So far in physics, we've covered units 1, 2, and 3. In the first unit was mostly an introduction to physics; the second and third unit went into the study of movement.

The first unit was about getting us to be able to:

·            Know the difference between accuracy and precision

·            Know the IS standard dimensions and units of measurements

·            Be able to do simple dimensional analysis

·            Know how to use scientific notation

·            Graph the relationship between independent & dependent variables

·            Understand and be able to use different types of graphing methods.

This is a video/animation I made on accuracy and precision

The second unit was about getting us to be able to:

·            Describe & interpret motion through words

·            Describe & interpret motion using motion maps, diagrams & graphs

·            Differentiate between vector & scalar quantities

·            Determine the relationship between position & time of a moving object

·            Use the displacement, velocity, and instantaneous position formulas

·            Relate the graphical, algebraic and motion diagrams to one another

·            Use the appropriate units in a given problem

Here is a video/animation of how displacement works

The third unit continued from where the second unit left off, which was getting us to understand and be able to:

·            Contrast graphs of objects undergoing constant velocity and constant acceleration

·            Define instantaneous velocity

·            Distinguish between instantaneous velocity and average velocity

·            Define acceleration including its vector nature

·            Draw motion maps that include both velocity and acceleration vectors

·            Stack kinematic curves of position vs. time, velocity vs. time, and acceleration vs. time graphs

·            Know what each graph shows and what information can be obtained from each type of graph

·            Use the kinematic equations from x vs. t & v vs. t graphs

o   d = (average V)t

o   d = ½ at² + V_ot

o   V = V_o + at

o   V² = V_o² + 2ad

 

·            Analyze the motion seen in free fall and understand how uniform acceleration applies to a falling object

Here is a video I made which depicts free falling.