1. Energy—Day 7 Materials Needed: Writing Utensil Folder Notebook Please pick up the handout on the front table!

2. B ELL WORK & AGENDA DAY 7 Name the energy conversions (energy trios) taking place in a running car. Hint: Energy trios have 3 kinds of energy that are being changed. Remember: dropping a ball has 2 -- PE goes to KE. Agenda: BLAM Make an Energy Poster showing the conversion of energy trios along with the descriptions.

3. Q1: W HAT IS A DISTURBANCE THAT TRANSFERS ENERGY THROUGH MATTER OR EMPTY SPACE ? A. chemical change B. heat C. vibration D. wave SC8.2.3.a DOK 1

4. Q2: T HE TABLE BELOW SHOWS HOW MUCH PROTEIN ( IN GRAMS ) AND ENERGY ( IN C ALORIES ) PEOPLE OF DIFFERENT AGES NEED EACH DAY. A BOUT HOW MUCH PROTEIN WOULD A 75- YEAR - OLD FEMALE PROBABLY NEED EACH DAY ? Age Protein (grams)Energy (calories) FemalesMalesFemalesMales 7-1034 2,400 11-1246452,2002,700 15-1646562,1002,800 19-2244562,1002,900 23-5044562,0002,700 51-7044561,8002,300 A. 33 gramsB. 44 grams C. 56 gramsD. 75 grams SC8.1.1.g DOK 3

5. M ATH BOOSTER D AY 7 One family uses an electric water heater. What is their cost per year for machine A and for machine D?

6. G REEK & L ATIN D AY 7 Greek /LatinMeaningExample metermeasuring axiaxis goniangle leglaw operwork

7. O BJECTIVE D AY 7 I will know (knowledge): the steps it takes for one form of energy to change into another form of energy. I will be able to (skill): identify and draw picture examples of energy trios. I will be able to (skill): describe the examples of energy trios.

8. B ELL WORK DAY 7 -- ANSWER Name the energy conversions taking place in a running car. Answer: Chemical energy from gas to mechanical energy (engine) to thermal energy (in the engine) or sound energy.

9. A1: W HAT IS A DISTURBANCE THAT TRANSFERS ENERGY THROUGH MATTER OR EMPTY SPACE ? A. chemical change Chemical changes happen when one or more substances are changed into new substances. B. heat Is a form of energy that could be transferred. C. vibration Vibration is when particles move back and forth quickly. D. wave A wave is any disturbance in a solid, liquid, gas, or empty space. SC8.2.3.a DOK 1

10. A2: T HE TABLE BELOW SHOWS HOW MUCH PROTEIN ( IN GRAMS ) AND ENERGY ( IN C ALORIES ) PEOPLE OF DIFFERENT AGES NEED EACH DAY. A BOUT HOW MUCH PROTEIN WOULD A 75- YEAR - OLD FEMALE PROBABLY NEED EACH DAY ? Age Protein (grams)Energy (calories) FemalesMalesFemalesMales 7-1034 2,400 11-1246452,2002,700 15-1646562,1002,800 19-2244562,1002,900 23-5044562,0002,700 51-7044561,8002,300 A. 33 grams As females get older, they are in need of more protein. A female between the ages of 51-70 needs 44 grams, so a 75 year old female would need the same or more. B. 44 grams 44 grams seems to keep with the pattern of protein needed for females. C. 56 grams As females get older, they are in need of more protein. However, the table shows a steady increase. This would show a steep increase in protein. D. 75 grams As females get older, they are in need of more protein. However, the table shows a steady increase. This would show a steep increase in protein. SC8.1.1.g DOK 3

11. M ATH BOOSTER D AY 7 -- ANSWER One family uses an electric water heater. What is their cost per year for machine A and for machine D? Answer: Machine A $10 Machine D $60

12. I NDEPENDENT WORK D AY 7 What is the gravitational potential energy of a 61.2 kg person standing on the roof of a 10-story building relative to (a) the tenth floor, (b) the sixth floor, (c) the first floor? (Each story is 2.50 m high.)

13. Poster presentations.

14. A pendulum weight is released in position A. The weight moves through positions B, C, D, and E. Q 1. At what location (s) does the pendulum have minimum potential energy? Q 2. At what location (s) does the pendulum have maximum kinetic energy? Q 3. If the mass of the pendulum is 0.05 kg and has a speed of 2 m/s at the location C, find its kinetic energy. Q 4. What is the pendulum’s potential energy at A?

15. E XIT S LIP Describe how one form of energy changes (transfers) into another form of energy.