Use a series of demonstrations With mirrors and laser beams arrive at the "Law of Reflection". Label and define the normal ray, incident ray, reflected ray, angle of incidence and angle of reflection. Make measurements. Chose a series of different angles of incidence to arrive at the law of reflection
introduce and discuss the law of reflection of light. Demonstrate the reflection of light using mirrors and laser lights. Define and sketch a normal ray, an incident ray, a reflected ray, he angle of incidence and the angle of reflection determination. Demonstrate a number of various incident and reflected rays at different angles and determine the law of reflection
Review generalizations regarding electronegativity and polarity. Discuss the parameters as set by Pauling. Introduce the universal symbol and define what the measurement indicates. View from a chart of electonegativities the general pattern seen in metals, Melttaloids, and non metals. Use examples of compounds and their elecctonegativity differences to determine polar and ionic compounds.
We will do a study of angular motion using an example of the speed of a hard drive. This will review the concepts of angular displacement and angular velocity. We also review the unit multiplier method for covert units. After completing an example, we ill consider waroious hard drive speeds as technology has advanced in recent years.
Assignment
none
Session Minutes
45
Minutes Student Attended
45
Lesson Comments
We accomplished the goals of the lesson. Ben has more knowledge of the changes in technology than I have.
Review wave properties in general and sound waves in particular . Work through some general questions which require the use of formulas contains velocity, wave length and frequency.
A ripple tank was designed to demonstrate the behavior and properties of water waves used as a generalized wave type. The tank demonstrated wave pulses, amplitude, wave length and frequency of a wave. Wave velocity could be determined using a formula which contained frequency and wave length.
We will critique the results from the previous lab involving conservation of mechanical energy. We will do a lab involving problem solving that involves designing an airport runway for small planes.
Assignment
none
Session Minutes
45
Minutes Student Attended
45
Lesson Comments
We decided the results from our previous lab would have been better if we had a better way of measuring the time the objects require to move down the slide. Photgates would have given much more accurate results. We complete our design for the airport runway considering factors such as prevailing wind, acceleration capabilities of a plane, and room for error.
Determination of the speed of sound using resonance technique. The loudness of a sound produced using a tuning fork and a resonating column. Measurements are made and the wavelength of a wave produced by a tuning fork with a specific frequency calculated. The speed of sound is then calculated using the information measured by the resonance tube.
Session Minutes
90
Minutes Student Attended
90
Lesson Comments
Results were analyzed and compared to listed speeds.
Define the pitch of a sound as being a function of the frequency of the sound wave. Indicate how the thickness of the vibrating body will change the frequency of the sound and thereby the pitch. Discuss the infrasonic and ultrasonic parameters of sound waves as received by various species.
Discuss the speed of sound changing with the media and the temperature of the media. Define intensity and soundness of sound, discuss the objective and subjective involvement of sound. Introduce decibels as the intrinsic objective measurement.
