Today we worked problems from notes and did an activity (ruler drop) to measure human reaction time. Your values of time should work out to be in the range of 0.1 to 0.3 seconds.
As far as studying, lots of problems are a good place to start, you can make an equation card (we only have 3 equations we're using this unit), and look to the chapter review in the book (we're not doing the last section of the chapter on Forces and Newton's laws - that will be next unit.)
Tomorrow we'll do a video analysis of a vertically tossed ball, practice a couple of new problems, and look at 2-dimensional motion: Gravity has some unexpected situational effects.
Notes on projectile motion here.
If you are working on optional assignments, this week is a good time to finish them. #2 is due this week, and it is very relevant to the exam.
review worksheet here
Wednesday we'll do some graph matching and have a worksheet - it will be tough!
Thursday we'll shoot the monkey and review for the exam.
Monday, September 30, 2013
Friday, September 27, 2013
Notes from Thursday, Monday HMWK
Notes from today: velocity and acceleration
HMWK Due Monday: p. 880# 27,28,30-33
Wednesday we tried matching position - time graphs with our motion and motion detectors. Thursday was notes :( above and practice problems.
Friday we'll go over answers on homework turned in on Thursday and try some more motion matching with the position detectors.
HMWK Due Monday: p. 880# 27,28,30-33
Wednesday we tried matching position - time graphs with our motion and motion detectors. Thursday was notes :( above and practice problems.
Friday we'll go over answers on homework turned in on Thursday and try some more motion matching with the position detectors.
Tuesday, September 24, 2013
Labs due Wed! Worksheet from today = HMWK for Thurs.
Today in class:
Video on acceleration
Video (mythbusters) on vector addition
We drew a motion map of a dropped object and used its position-time and velocity - time data to determine acceleration due to gravity ("g") on the Earth. We found a number of (-) 10m/s/s. We will be using this value in class since you can use it without a calculator, but the accepted value of acceleration due to gravity at Earth's surface is -9.81m/s/s.
I handed out a worksheet that is due on Thursday and gave time to work on it or to work on / ask questions on labs which are due tomorrow.
Video on acceleration
Video (mythbusters) on vector addition
We drew a motion map of a dropped object and used its position-time and velocity - time data to determine acceleration due to gravity ("g") on the Earth. We found a number of (-) 10m/s/s. We will be using this value in class since you can use it without a calculator, but the accepted value of acceleration due to gravity at Earth's surface is -9.81m/s/s.
I handed out a worksheet that is due on Thursday and gave time to work on it or to work on / ask questions on labs which are due tomorrow.
Thursday, September 19, 2013
Lab today, Optional Assignment #2
Optional Assignment #2 is now available here. This one is based on a simulation called "Moving Man" and will be due on 10/3. (#1 is still available for a week)
Today's lab should be difficult but definitely possible (use your graphing worksheet/notes to help you!)
Labs are due Tuesday.
Today's lab should be difficult but definitely possible (use your graphing worksheet/notes to help you!)
Labs are due Tuesday.
Wednesday, September 18, 2013
Ranking Tasks, practice with acceleration, start Lab for tomorrow!
Today pre-lab sheets were handed out for tomorrow's lab.
Also, we worked on some ranking task problems; trying to put different items in order based on one factor; a tough thing to do!
Finally, we practiced acceleration problems together and made sure the activity/notes ws from yesterday was up to date and complete with slope - intercept form equations.
want extra practice? try this ws.
Also, we worked on some ranking task problems; trying to put different items in order based on one factor; a tough thing to do!
Finally, we practiced acceleration problems together and made sure the activity/notes ws from yesterday was up to date and complete with slope - intercept form equations.
want extra practice? try this ws.
Tuesday, September 17, 2013
Mon-Tues: Motion Maps, graphs, and Slope! Oh my!
Yesterday and today we worked on some really tough problems (as notes) on this worksheet.
Hmwk deadline extended to Wed.
Bring lab journals Wednesday and Thursday!
Hmwk deadline extended to Wed.
Bring lab journals Wednesday and Thursday!
Friday, September 13, 2013
Weekend HMWK, Acceleration
Yesterday in class we finished notes on motion and discussed some relative motion problems, along with distance and displacement related ideas.
Today we had our Motion Map and Graphing Activity #2; the wheel and axle. These started really slow and gradually increased in speed as they went down a ramp. Everyone had hands on the data collection which was fun, then we tried a couple of different ways to graph (even with tape and no numbers!)
Finally we shared different types of graphs and discussed axis labels... some groups made graphs of position or distance / time and some groups unknowingly graphed speed or velocity versus time.
We wrapped up by discussing what the slope of a velocity / time graph would indicate... units we came up with in most classes were centimeters per second per second. This is how much faster (in centimeters per second) the wheels got each second.... AKA acceleration!
HMWK (due Tuesday) Read p. 76-80, p. 80#1-7
Today we had our Motion Map and Graphing Activity #2; the wheel and axle. These started really slow and gradually increased in speed as they went down a ramp. Everyone had hands on the data collection which was fun, then we tried a couple of different ways to graph (even with tape and no numbers!)
Finally we shared different types of graphs and discussed axis labels... some groups made graphs of position or distance / time and some groups unknowingly graphed speed or velocity versus time.
We wrapped up by discussing what the slope of a velocity / time graph would indicate... units we came up with in most classes were centimeters per second per second. This is how much faster (in centimeters per second) the wheels got each second.... AKA acceleration!
HMWK (due Tuesday) Read p. 76-80, p. 80#1-7
Tuesday, September 10, 2013
Tuesday - Graphing - speed and Optional Assignment #1: Maze Game
worksheet from today
Optional Assignment: Maze Game
Optional assignments will not hurt your grade; only help. They are not required but are recommended as additional in-depth research and hands-on learning tools. If you do an optional assignment, your points possible for the class increase but your overall average will improve - not bonus points but they will help buffer any bad grades you may have.
You have two weeks to work on this; due Wednesday, September 25th.
Wednesday homework will be collected, lab journals will be handed back, and we will finish the graphing worksheet and start motion notes.
Optional Assignment: Maze Game
Optional assignments will not hurt your grade; only help. They are not required but are recommended as additional in-depth research and hands-on learning tools. If you do an optional assignment, your points possible for the class increase but your overall average will improve - not bonus points but they will help buffer any bad grades you may have.
You have two weeks to work on this; due Wednesday, September 25th.
Wednesday homework will be collected, lab journals will be handed back, and we will finish the graphing worksheet and start motion notes.
Monday, September 9, 2013
Monday - Motion
Today in class:
hand in homework from last week. Classes in 7th/8th period will see full grades and test scores/discuss.
Activity in class today: graph motion of ping-pong ball in plastic tube, describe visually and share via whiteboard with class.
Find slope of graph and explain its significance (what it means) by using its units.
p.879 #21-26 due Wed.
Tomorrow: density labs will be handed back and an optional assignment will be posted in class and online.
notes on motion
upcoming activitiy:
Motion maps and graphing
hand in homework from last week. Classes in 7th/8th period will see full grades and test scores/discuss.
Activity in class today: graph motion of ping-pong ball in plastic tube, describe visually and share via whiteboard with class.
Find slope of graph and explain its significance (what it means) by using its units.
p.879 #21-26 due Wed.
Tomorrow: density labs will be handed back and an optional assignment will be posted in class and online.
notes on motion
upcoming activitiy:
Motion maps and graphing
Thursday, September 5, 2013
Graphing and Sci Method practice today, Motion activity tomorrow
HMWK deadline extended to Monday!
Read p. 70-75.
p. 72#1&2
p. 75#1-7
p. 72#1&2
p. 75#1-7
Tomorrow's activity will be involving a moving object and how to describe it with a graph... and taking the information (slope) from the graph and making something useful to predict.
If you are feeling lost on the algebra or conversion factors (many of you are - I know this is a tough thing to pick up), I will be using more and more of these in class next week. I will keep it slow... you will pick up on it!
If you need another source to get a different perspective on using them, see me for a tutoring pass (have another student help you during Advisory on Tuesdays or Thursdays) or check out some stuff on the Internet about it.
You will need to be either very solid on algebra skills and "dividing by a fraction"... etc OR be capable of using conversion factors to be successful in the upcoming units.
Tuesday, September 3, 2013
Test Tomorrow! Study!
Today in class we discussed some common issues on homework that was turned in on Friday and practiced conversion factor usage in density problems.
After that we played a Teams/Groups/Trivia review game to help you on some vocabulary and concepts.
Bring a calculator (no more phones!) and a pencil tomorrow.
Tomorrow's HMWK (due Friday):
Read p. 70-75.
p. 72#1&2
p. 75#1-7
After that we played a Teams/Groups/Trivia review game to help you on some vocabulary and concepts.
Bring a calculator (no more phones!) and a pencil tomorrow.
Tomorrow's HMWK (due Friday):
Read p. 70-75.
p. 72#1&2
p. 75#1-7
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