1. Last Day of Ch. 8 Before Test! Fen 27 & 28

2. HW Due11 questions – turn them in! Tonight’s HW Test on Ch. 8 is next class. Use the study guide! No mandatory HW (other than studying), but the following options might be helpful: 2 review PowerPoint's on my website Extra practice worksheet on my desk – fee free to take on – answer key is on my website Do NowDEMO!!! Make the chart below somewhere in your notes: Demo ( 2 steel spheres that will hit w/ a piece of paper in between) What I think will happen ( words and/or pictures) What ACTUALLY happened (words and/or pictures) WHY did it happen (key terms/ concepts from the chapter

3. Today’s Objectives: 1.Complete the Energy Skate Park NOTES in a group – 1 per person – take good notes! This is a great test study tool! 2.When done with the notes, see teacher for GRADED FORM – 1 per group (or individual) 3.Then, review your HW. Check in with peers or teacher if you need clarification. Teacher text is on my desk 4.Rest of class to prep for test – get help, ask questions, study, try the extra practice worksheet, etc.

4. Today’s exit requires you to take back your old exit slips… We are going to check, BUT…. The answers are NOT in order – think of this like a WORD BANK! Check, correct, and get the help you need

5. A = D B C The object started with grav. PE. The total energy was conserved. However, some of it was converted into thermal (due to air resistance) and sound. The object originally consisted of a lot of mass, with not that much height. However, after being let go, only a little bit of mass bounced up, leading it to bounce to a large height. ( m g h = m g h )Eventually, it will stop bouncing completely because the energy will all convert to thermal. A = B = C = D The object started with grav. PE. The total energy was conserved. However, some of it was converted into thermal (due to air resistance) and sound. Therefore, the object didn’t return to it’s initial starting height. Eventually, it will stop completely because the energy will all convert to thermal. C B A = D