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

HW Due11 questions – turn them in! Tonight’s HW Test on Ch. 8 is next class. Use the study guide! 2 review PowerPoint's on my website Extra practice worksheet on my website –– answer key is on my website Finish Skate Park Notes!!! (from today) 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

Can energy ever be created? 1.Yes 2.No 3.Sometimes Countdown 10

Can energy ever be destroyed? 1.Yes 2.No 3.Sometimes Countdown 10

Does an object with momentum always have energy? 1.Yes 2.No Countdown 10

Does an object with energy always have momentum? 1.Yes 2.No Countdown 10

If a mouse and an elephant both run with the same kinetic energy, can you say which is running faster? 1.The mouse 2.the elephant 3.Not enough info to say Countdown 10

Is it possible for an object to have BOTH PE & KE (simultaneously)? 1.Yes 2.No 3.Not enough info to say Countdown 10

Today’s Objectives: 1.Finish your Concept Development in a group or with a teacher. 2.See a teacher for a copy of, & complete the Energy Skate Park NOTES in a group – 1 per person – take good notes! This is a great test study tool! 3.When done with the notes, see teacher for GRADED FORM – 1 per group (or individual) – due END of class on TUESDAY (test day) 4.Then, review your HW. Check in with peers or teacher if you need clarification. Teacher text is on my desk 5.Rest of class to prep for test – get help, ask questions, study, try the extra practice worksheet, etc.

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

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

HW Test next class …Use the: – study guide – extra practice / solutions linked on my website. – 2 review power point’s on my website – Disney Quiz – Math practice – All true / false & scenarios & yes/no from Notes – Notes – All ranking problems FINISH YOUR SKATE PARK NOTES You are completing a group grade lab form with that on Tues. AFTER your test