4 Linear Motion HW: R&S 2.3; do RQ (Review Questions) #7-8 Do Now –turn in your HW; take out your Pre Assessments… Now that you know the formula, make.

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Presentation transcript:

4 Linear Motion HW: R&S 2.3; do RQ (Review Questions) #7-8 Do Now –turn in your HW; take out your Pre Assessments… Now that you know the formula, make corrections! Check with others if needed

4 Linear Motion

Exit Slips from last class…

4 Linear Motion

You have 15 minutes to… 1.Work with others at desks or lab benches 2.Check/correct the following 3 assignments: P. 661 #1-6 (HW) And the HW assigned over the weekend Your quiz 3.If you have questions, you must find a peer or teacher and ask!

4 Linear Motion Go to your test seats Take out your binders 20 point quiz – do NOT tell other classes about this; it would be unfortunate if they had advanced notice and earned better grades than you…not to mention it is a violation of the academic integrity code. You have 15 minutes – this is timed. When done, upside down in In Box and begin the concept attainment worksheet

4 Linear Motion You can describe the motion of an object by its position, speed, direction, and acceleration.

4 Linear Motion Concept Attainment …please take handout YES this box will contain examples that CORRECTLY show today’s new conceptNO this box will contain examples that DO NOT show today’s new concept Your job is to come up with a hypothesis that describes: the differences between the YES and NO examples; what they ARE/ ARE NOT; what they have in common, etc. You may work in small groups if you would like. We will ask for groups/individuals to volunteer their hypothesis.

4 Linear Motion Concept Attainment YES 50 km/h north 25 m/s south 10 km/h east 20 m/s west 15 m/s northeast NO 50 km/h 25 m/s 10 km/h 20 m/s 15 m/s You MAY work with others. Come up with a hypothesis that describes any of the following: the differences between the YES and NO examples; what they ARE/ ARE NOT; what they have in common, etc. Random individuals/groups will be called on to share their hypothesis.

4 Linear Motion BIG IDEA: (write down in 2 nd box) Speed is a description of how fast an object moves; velocity is how fast and in what direction it moves. (Make note of this on Concept Attainment handout!) 2.3 Now, let’s share hypotheses…

4 Linear Motion YES 50 km/h north 25 m/s south 10 km/h east 20 m/s west 15 m/s northeastNO 50 km/h 25 m/s 10 km/h 20 m/s 15 m/s Which column lists examples of… SPEED? VELOCITY? Label on your Concept Attainment handout

4 Linear Motion In physics, velocity is speed in a given direction. When we say a car travels at 60 km/h, we are specifying its speed. When we say a car moves at 60 km/h to the north, we are specifying its velocity. Any questions about how you labeled your columns on your concept attainment sheet? 2.3 Velocity

4 Linear Motion Vector vs. Scalar Vector: magnitude (“how much?”) and direction Scalar: magnitude only Is speed a SCALAR or VECTOR quantity?_______ Is velocity a SCALAR or VECTOR quantity?_____

4 Linear Motion Is speed a SCALAR or VECTOR quantity?_____________ Is velocity a SCALAR or VECTOR quantity?_____________ 2.3 Velocity

4 Linear Motion Exit Slip Self Assessment Take one and place in In Box when done BE HONEST AND COMPLETE!