D AY 6 A T A G LANCE We have two goals for today: 1) Look at the quiz: Look at our mistakes, correct them, learn from them. 2) See what we need to know,

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D AY 6 A T A G LANCE We have two goals for today: 1) Look at the quiz: Look at our mistakes, correct them, learn from them. 2) See what we need to know, and what we can do with acceleration. Practice it, see how Day 5 HW should be

T ODAY So today will have the following: 1) Discussion of how Quiz was graded, handback of quiz. 2) 20+ minutes of Quiz station correction and learning. 3) Remember Acceleration, do some math examples 4) Do some advanced Acceleration thoughts, problems, etc. Get knowledge in this room flowing.

FOR THIS CLASS Due to 1 st exposure: / points. This is your FIRST STEP, so realize that you will get better, but this is not a memorization and regurgitate type of class. You need to become better at getting information from situations. I will help! I don’t care, however. You will learn so much this year, and it is going to make you better!

NEXT 20+ MINUTES Around the room are stations for you to LEARN from. I will be constantly circulating, asking questions. Write on your quiz, notebook, WHATEVER will help you APPLY what you KNOW next time. I WILL consider a corrected quiz as a possible HW turn in… with work shown and explained.

Sorry Catharine 

T HOUGHTS Videos as a resource are important. Some people are not asking the questions they should: In class or in private We have a lab day coming up soon. The next video is VITAL to watch. It will be your preparation for GRAPH BOOT CAMP. Ignore it at your peril!

T RANSITION T IME So far only 4 people have won 2 Nobel Prizes. Only one has won them in 2 different science fields. Who is it? MARIE CURIE 2 Chem: Fredrick Sanger (insulin prod, and base sequencing for DNA) 2 Physics: John Bardeen (Transitor, Microscopic Superconduction 1 Peace/1 Chem: Linus Pauling

REMINDER Acceleration: What is it? IdeaMath For example: An acceleration of +5 m/s 2 means…

D O YOU GET IT ? A panda has acceleration of +5 m/s 2. If it started running at 3m/s, how fast would it be going after 1 second after 4 seconds VariableValue

C ONFIRMATION : For the next 15? Minutes… Try the problems organized by table

Lets now talk Acceleration and Direction. This will be a table in your notebook. 2 lines per row, 7 rows total. 4 columns wide. You get two: PREDICTION and ACTUAL. ScenarioDisplacementVelocityAcceleration

R EALLY D EMANDING Q UESTIONS 1) Car going forward, hits the gas ScenarioDisplacementVelocityAcceleration Car going forward, hits the gas +, still going away from start +, still going forward +, gaining forward speed

R EALLY D EMANDING Q UESTIONS 2) Car going forward, hits the brakes ScenarioDisplacementVelocityAcceleration Car going forward, hits the brakes

R EALLY D EMANDING Q UESTIONS 3) Car going forward, put into reverse ScenarioDisplacementVelocityAcceleration Car going forward, put into reverse

R EALLY D EMANDING Q UESTIONS 4) Car going backward, hits the gas ScenarioDisplacementVelocityAcceleration

R EALLY D EMANDING Q UESTIONS 5) Car going backward, hits the brakes ScenarioDisplacementVelocityAcceleration

R EALLY D EMANDING Q UESTIONS 6) Car going forward, at constant velocity/cruise control ScenarioDisplacementVelocityAcceleration

TRUE OR FALSE, AND WHY? 1) A car that is slowing down has a negative acceleration A ball thrown down from the top of THS will gain more speed per second than a ball dropped from the top of THS.

TRUE OR FALSE, AND WHY? 1) If an object is accelerating, then the velocity of the object can never be zero at any time. If an object has a velocity of zero for a moment, its acceleration at that moment is zero.

TRUE OR FALSE, AND WHY? 1) If an object keeps the same ‘speed’ or magnitude but changes direction, there is an acceleration. If an objects acceleration is constant, then it must stay in the same direction.

TRUE OR FALSE, AND WHY? 1) If an object is thrown up hard enough, it will no longer come back down. If you throw an object hard enough, gravity will not slow it down at all.

T RY T HE M ATH A car accelerates from rest at +7.5 m/s 2 for 4.5 seconds. How fast will it be going at that time? Key idea: REST means V is 0. Not overall, just Vi or Vf depending on the words. Look at m/s, s, m/s 2 or m to figure out what is given!