Today we began to analyze our data from the buggy lab (lab debrief). We defined some new terms: vector, scalar, position, displacement, velocity. We also calculated the slopes for each of our buggies. Tomorrow we will use our data to derive a general equation for uniform motion.
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Today was a catch up day since some groups still needed to finish gathering data, other groups discovered they confusing data and wanted to redo the lab, and some groups needed help with graphing. For Monday, make sure you have plotted your data. You should NOT finish the packet. We will have a discussion about the data and then answer the questions in the packet.
Today we talked about time rates of change using a popping index and a fastness index. Then we began the buggy lab. Hopefully your team was able to gather position and time data for 2 different buggies. For tomorrow, create a single graph and plot the data for both buggies on the same graph (you may want to use different colors for each graph). We will discuss our data tomorrow.
Today we went over the syllabus. Please make sure you read the syllabus and discuss it with your parents. Once you have read it, please complete this form to indicate that you have read and understood the class policies. This is due by 9/11.
Then we finished analyzing our data from the ball bounce lab. You used your model to predict from which height you needed to drop a ball to have it rebound to a given height. Teams whose prediction was successful earned a physics buck! The first week was a bit hectic because the schedule was different each day. We introduced ourselves, and began a lab in which you are trying to predict the height from which a ball must be dropped to make it rebound to a given height. You should have gathered lots of data and created a graph as we discussed in class. On Tuesday we will discuss our graphs and see how well our predictions work!
Period 2 has their final exam tomorrow (Tuesday). Period 3 has their final exam on Wednesday.
Topics include (but are not limited to): Magnetism - magnets and magnetic poles - magnetic field lines and field strength - how do magnets interact with various other objects (including other magnets) - what causes magnetism - electromagnets (including how to make one) - magnetic domains - Earth's magnetic field Waves - properties of waves (wavelength, frequency, amplitude, period) - what affect the speed of a wave? How does changing one variable affect others? - using the wave equation to calculate, speed, frequency, or wavelength (or period) - transverse vs. longitudinal waves - electromagnetic vs. mechanical waves (and examples of each) - interactions of 2 waves: constructive interference and destructive interference and superposition Best way to study: look over the powerpoints we used in class (linked to previous posts or available in google drive), the labs we did, and the homework worksheets/packets (solutions linked to previous posts. The solutions to the wave interference worksheet are available in google drive. Next week will be busy! The final exam is on Tuesday for 2nd period and Wednesday for 3rd period. The final is really just a unit test on magnetism and waves. After the test we will work in class on a project that will be due on the last day of school.
Yesterday we took some notes on waves (most if it you already knew!). Today you investigated what happens when two waves interact. Each group must hand in the following:
1. A series of sketches showing the pulses BEFORE, DURING, and AFTER interacting. Make sure you label each pulse with an arrow showing the direction that it is traveling. 2. A rule (or rules) that explains how waves interact with each other. Make sure all members of the group have their name on the assignment or you won't get credit! On Tuesday you should complete the waves packet that you began on Thursday. We will go over it on Wednesday. Solutions are available in google drive.
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Reminders:
10/16/2018 - Test on one dimensional kinematics (tentative)
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