Thursday, January 11, 2018 Warm-Up: Explain the gravitational potential energy, potential energy, and kinetic energy when a book is dropped from a table.

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Presentation transcript:

Thursday, January 11, 2018 Warm-Up: Explain the gravitational potential energy, potential energy, and kinetic energy when a book is dropped from a table. Learning Target: I can engineer and describe the changes in potential and kinetic energy in a roller coaster. Success Criteria: I will be successful when I can carefully engineer and describe energy in a roller coaster. Plan for Today 1. Grade Drive a Nail Investigation 2. Energy Review/Vocab 3. Roller Coasters!

When done grading, open books to page D-12 and read quietly! VOCABULARY thermal energy: heat energy friction: rubbing force resisting movement When done grading, open books to page D-12 and read quietly!

How is energy transformed on a roller coaster? Challenge Question How is energy transformed on a roller coaster? https://www.youtube.com/watch?v=fc6jUdPRZmU

Assignments Finish the BLUE SHEET. Make sure to answer in complete sentences. Get a worksheet and DESIGN your roller coaster. YOU NEED APPROVAL TO START. CAREFULLY engineer AND test your roller coaster. CLEAN UP WHEN DONE! Design AND create a final project poster!

PROCEDURE AND DATA MATERIALS: PROCEDURE: D 13 DATA: WS 55.1 (WS 53.1) Do role play activity then hand out 55.1.

kinetic (moving hands) into thermal (heat) What causes friction? Rub hands – what energy transfer happens? kinetic (moving hands) into thermal (heat) Show friction 36-1 video - 3 minutes. Review answers 1 & 2 on WS 53.1 Do you still agree? Disagree? Use evidence to change / not change answers.

ANALYSIS: D 17 Q3 Besides coaster’s Gravitational PE to KE, thermal and sound energy is created (and more kinetic by moving air) Q4 Coaster can not go higher than hill it just came down because P + K Energy is lost to friction (becomes heat).

ANSWER CHALLENGE QUESTION How is energy transformed on a roller coaster? Potential Energy is converted by gravity into Kinetic Energy (and also thermal and sound due to friction).