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Physical Science CHS 2013-14. UNIT 2 Motion, Forces, Energy. 10/3/13. Entry Task If a car travelled 60 miles and it took the car 2 hours, how many miles per hour was its average speed? Mathematically speaking, what does the “per” in the above question mean?
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Physical Science CHS 2013-14 UNIT 2 Motion, Forces, Energy
10/3/13 • Entry Task • If a car travelled 60 miles and it took the car 2 hours, how many miles per hour was its average speed? • Mathematically speaking, what does the “per” in the above question mean? • REMEMBER! All missing work for unit due tomorrow! • HOMEWORK – start WHEN FINISHED WITH TEST: Read pages 76-80. Answer all questions #1-10 on page 80. Due Monday 10/7/13
Today’s Agenda • Students needing more time on the test will be finishing their tests. • HOMEWORK – start WHEN FINISHED WITH TEST: Read pages 76-80. Answer all questions #1-10 on page 80. Due Monday 10/7/13 • PLEASE BE RESPECTFULLY SILENT AND SEATED until all tests are turned in. • EXTRA TIME? Complete the “Designing an Investigation” Crossword for extra credit
10/3/13 • Exit Task • What is your average speed if you walk 4 kilometers in 4 hours? • Hint: speed =
10/4/13 • Entry Task • Say Something Nice • For 2 free points! • “What does the fox say?” • Reminder HOMEWORK –: Read pages 76-80. Answer all questions #1-10 on page 80. Due Monday 10/7/13
Today’s Agenda – take notes with a partner pages 76-85…complete as HOMEWORK! Vocabulary – give meaning in own words How is velocity different than speed? How do you show forwards and backwards movement? What is the difference between “distance” and “change in position? What does a straight line mean on a position vs time graph? How can you recognize a relationship on a graph? How do you calculate slope? What does slope also indicate? Sketch a position vs time graph. Sketch a speed vs time graph • Speed • Average Speed • Instantaneous Speed • Velocity • Distance • Constant speed • Slope Key Ideas – take notes on these ideas What is the difference between average speed and instantaneous speed?
10/4/13 • Exit Task • Trade and Grade week of 9/30-10/4 • 2 more free points for your HIGH INTEGRITY grading • Please be sure to only give points when it is earned! • Reminder HOMEWORK –: Read pages 76-80. Answer all questions #1-10 on page 80. Due Monday 10/7/13 • PLUS – C-notes vocab AND key ideas pages 76-85. Also due Monday 10/7/13
10/7/13Week of 10/7 to 10/11 • New Seating Chart • Entry Task • Dino can leap 400 meters in 30 minutes. This includes brief sprints to catch butterflies. What is his average speed in m/min? • What is his average speed in m/hr? • Can you tell his velocity? Why or why not?
Today’s Agenda • Please get out p. 80 homework #1-10. • Trade and Grade. • Please also get out your C-notes vocab and key ideas pages 76-85. • Brief review with name cards…. • Turn in all homework! • See next slide…planning an investigation.
Planning a Speed Investigation • You will choose the independent variable. • GOAL: find a way to increase the velocity of the car once it crosses the photogate at bottom of ramp. • Write down your independent variable choices: • Adding mass - mass balls – 1,2,3 • Placement of mass balls – front, middle, rear hole • Rubber bands – distance stretched - • # of rubber bands – 1,2,3 • Height of ramp • Placement of photogate – high, medium, low • Temperature of car – cold, warm, hot • Oil on axle – light, medium, heavy application
GREEN SHEET – Designing an Investigation • You will each complete all portions listed on green sheet in your composition notebooks. • TITLE • Identify variables • Question • Hypothesis • Materials and PROCEDURE • Be thorough and thoughtful with this section! • 3 trials for each of 3 conditions • Experimental Control Condition • Extra Validity Measures • DATA TABLE – I will post this…you add your groups labels and measurements. • Have design finished for tomorrow! Approval by start of class tomorrow…
10/7/13 • Exit Task • What independent variable did your group choose? • What is your Hypothesis?
10/8/13 • Entry Task • What is the “experimental control condition”? • What are “extra validity measures”? • For this lab, what will you do for both of the above?
Today’s Agenda • Get approval for your lab design before you begin • Be sure your data table is complete • Be precise in your measurements. • Complete data collection and calculating averages and speed today. • EXTRA TIME? Begin designing your graph.
10/8/13 • Exit Task • What 3 controlled variables did you include in your lab design?
10/9/13 • Entry Task • We have calculated speed for our current lab: speed = • Why do you keep distance as 1 cm? • Hint: how wide is the flag on the car? • HOMEWORK: Speed Practice Sheet. Due Friday 10/11/13
Today’s Agenda • EACH PERSON WILL: • Collect and record data with their team. Create a graph of your results – consult green sheet. • Draft and write conclusion – consult green sheet. • IN THEIR COMPOSITION NOTEBOOKS
10/9/13 • Exit Task • Begin your conclusion from your data… • Answer your investigative question, “How does( your chosen independent variable) • affect speed through the gate?” • Was your hypothesis supported? • HOMEWORK: Speed Practice Sheet. Due Friday 10/11/13 • Review Rubric
10/10/13 • Entry Task • If I told you an object ACCELERATES 9.8 m/s each second and I let it drop from a standstill… • How fast would it be going after 1 second? • Draw a picture to help you! • REMINDER HOMEWORK: Speed Practice Sheet. Due Friday 10/11/13
Today’s Agenda • Share good student examples. • Partner Discuss, Update and Grade – see Ms. Maring’s example. • Complete and turn in Composition Book with our latest investigation for grading. • PLACE YOUR RUBRIC in your comp book by the lab. Turn in to comp book shelves. I will lock them.
10/10/13 • Exit Task • What does “acceleration” mean? • How is this different than speed? • REMINDER HOMEWORK: Speed Practice Sheet. Due Friday 10/11/13
10/11/13 • Entry Task • Say Something Nice • For 2 free points!
Today’s Agenda • Pre-assessment of understanding of Motion, Forces, Energy. • Your score will NOT be your grade. • You are graded on effort and completion. • At the end of the unit, you’ll be given a similar assessment and you can track your growth!
10/11/13 • Exit Task • Trade and Grade • For 2 free points…