Week #8 Quarter 2 (2/2/13-12/6/13) (calendar site)Monday, 12/2

Have out:•Energy Stamp Sheet•“Find Someone Who…” Activity

Activities/Assignments:1.Discuss Grades2.New Energy Stamp Sheet 3.“Find Someone Who…” Activity4.Make-up work time

I.S. Learning Goal:•I can describe energy.

Daily Question: How does energy go through changes?

Homework: ALL WORK DUE

DECEMBER 12TH!!!

Are you a Leader or a Follower???

Leaders A real leader faces the music,

even when he doesn't like the tune. Anon

Before you are a leader, success is all about growing yourself. When you become a leader, success is all about growing others. Jack Welch

The best leaders are the best notetakers, best askers and best learners - They are shameless thieves Tom Peters

Follower

You’re unique. Don’t be a follower. Be a leader. Anon

Innovation distinguishes between a leader and a follower. Steve Jobs

Week #8 Quarter 2 (2/2/13-12/6/13) (calendar site)Tuesday, 12/3

Have out:•Energy Stamp Sheet•Energy Practice Test

Activities/Assignments:1.Energy Practice Test2.Energy Assessment Sheet #1 Rubber Band Activity

I.S. Learning Goal:•I can describe energy.

Daily Question: How does energy go through changes?

Homework: ALL WORK DUE

DECEMBER 12TH!!!

DATE PAGE # PAGE TITLE DATE PAGE # PAGE TITLE

11/26 31 Ionic and Covalent Bonding Review Worksheet

11/27/13 32 Chemistry Test

12/2/13 33 Find Someone Who…Activity

12/3/13 34 Energy Assessment Stamp Sheet

12/3/13 35 Rubber Band Lab 12/4/13 36 Energy Outline Notes

Update Table of Contents

Energy

Shooting Rubber BandsOverview

For this introductory activity you will shoot rubber bands stretched to various distances.

Hypothesis: ? Materials:

Rubber Band Ruler Data Table

Procedures: Write a hypothesis on the back of your data table. Place a rubber band on the edge of the ruler, pull it back to 10 cm,

and release the rubber band. Be sure the ruler is parallel to the floor.

Measure the distance traveled by the rubber band and record it in a data table.

Repeat these steps while increasing the distance the rubber band is pulled back by five centimeters for each release.

Average your results and create a line graph of your average data with distance traveled on the y-axis and the distance you pulled the rubber band back on the x-axis.

http://www.sciencebuddies.org/science-fair-projects/project_ideas/ApMech_p017.shtml?fave=no&isb=cmlkOjE1MjI3OTc4LHNpZDowLHA6MSxpYTpBcE1lY2g&from=TSW

Data Table

Trial 10 cm 15 cm 20 cm 25 cm 30 cm

1

2

3

4

5

Average

Questions

1. What patterns or trends did you notice?

2. Was energy used to launch the rubber band? If so, explain your reasoning.

3. What factors could have impacted the accuracy of your data?

4. Did your data support your hypothesis? Explain your reasoning.

Week #8 Quarter 2 (2/2/13-12/6/13) (calendar site)Wed/Thurs, 12/4 & 12/5

Have out:•Energy Stamp Sheet•“Find Someone Who…” Activity

Activities/Assignments:1.Energy Assessment Sheet #2 & 32.Finish Rubber Band Activity3.Energy Outline Notes

I.S. Learning Goal:•I can compare and contrast kinetic and potential energy.•I can compare and contrast the different forms of energy (chemical, mechanical, nuclear, thermal, electromagnetic, sound).

Daily Question: How does energy go through changes?

Homework: ALL WORK DUE

DECEMBER 12TH!!!

DATE PAGE # PAGE TITLE DATE PAGE # PAGE TITLE

12/2/13 33 Find Someone Who…Activity

12/3/13 34 Energy Assessment Stamp Sheet

12/3/13 35 Rubber Band Lab 12/4 or 12/5/13

36 Energy Outline Notes

12/4 or 12/5/13

37 Potential and Kinetic Energy Practice Sheet

12/4 or 12/5/13

38 Forms of Energy(Grouping Activity)

12/4 or 12/5/13

39 Identify the Form of Energy Worksheet

Update Table of Contents

Shooting Rubber BandsOverview

For this introductory activity you will shoot rubber bands stretched to various distances.

Hypothesis: ? Materials:

Rubber Band Ruler Data Table

Procedures: Write a hypothesis on the back of your data table. Place a rubber band on the edge of the ruler, pull it back to 10 cm,

and release the rubber band. Be sure the ruler is parallel to the floor.

Measure the distance traveled by the rubber band and record it in a data table.

Repeat these steps while increasing the distance the rubber band is pulled back by five centimeters for each release.

Average your results and create a line graph of your average data with distance traveled on the y-axis and the distance you pulled the rubber band back on the x-axis.

http://www.sciencebuddies.org/science-fair-projects/project_ideas/ApMech_p017.shtml?fave=no&isb=cmlkOjE1MjI3OTc4LHNpZDowLHA6MSxpYTpBcE1lY2g&from=TSW

Data Table

Trial 10 cm 15 cm 20 cm 25 cm 30 cm

1

2

3

4

5

Average

Questions

1. What patterns or trends did you notice?

2. Was energy used to launch the rubber band? If so, explain your reasoning.

3. What factors could have impacted the accuracy of your data?

4. Did your data support your hypothesis? Explain your reasoning.

Energy

the ability to do work or cause change typically expressed in units of joules

(J) can be transferred from one object to

another two general types:

Potential Kinetic

Potential Energy (PE) stored energy that an object has due to its

position or chemical composition Types:

Gravitational – results from vertical position or height Formula: PE = mgh

Elastic – results from stretching or compressing

Which soccer ball has more gravitational potential energy?

Explain your reasoning.

The types listed are not all-inclusive

0.45 kg

0.45 kg

Kinetic Energy (KE) energy of motion depends on mass and velocity

Formula: KE = ½ mv2

increases as mass or velocity increases and decreases as mass or velocity decreases

Which soccer ball has more kinetic energy? Explain your reasoning.

2 m/s 3 m/s

0.45 kg0.45 kg

What is the difference

between speed and velocity?

Relationship Between PE and KE

PE KE

What is happening to the PE and KE as the soccer ball falls to the feet of the mid-fielder?

What about the PE/KE graph could

be considered misleading?

Practice Problems A diver weighing 46 kg is preparing for a dive from

the 10 meter diving platform. How much gravitational potential energy does the diver have?

A cheetah weighing approximately 50 kg was seen chasing a gazelle at a speed of 32.4 m/s. What is the kinetic energy of the cheetah? KE = 1mv2

2(1)_____________ 2

K.E. = (50 kg)(32.4 m/s)2= 26,244 J

PE = mgh P.E. = (46 kg)(9.8 m/s2) = 4,508 J(10 m)

Earth’sGravity

Week #8 Quarter 2 (2/2/13-12/6/13) (calendar site)Friday, 12/6

Have out:•Energy Stamp Sheet•“Find Someone Who…” Activity

Activities/Assignments:1.Energy Assessment Sheet #4 & 52.Forms of energy worksheet3.Energy Outline Notes

I.S. Learning Goal:•I can explain the law of conservation of energy.•I can explain the relationship between energy conversions and efficiency.

Daily Question: How does energy go through changes?

Homework: ALL WORK DUE

DECEMBER 12TH!!!

DATE PAGE # PAGE TITLE DATE PAGE # PAGE TITLE

12/3/13 35 Rubber Band Lab 12/4 or 12/5/13

36 Energy Outline Notes

12/4 or 12/5/13

37 Potential and Kinetic Energy Practice Sheet

12/4 or 12/5/13

38 Forms of Energy(Grouping Activity)

12/4 or 12/5/13

39 Identify the Form of Energy Worksheet

12/6/13 40 Forms of Energy Practice Sheet

12/6/13 41 Energy Conversion Worksheet Practice Sheet

Update Table of Contents

Energy

the ability to do work or cause change typically expressed in units of joules

(J) can be transferred from one object to

another two general types:

Potential Kinetic

Potential Energy (PE) stored energy that an object has due to its

position or chemical composition Types:

Gravitational – results from vertical position or height Formula: PE = mgh

Elastic – results from stretching or compressing

Which soccer ball has more gravitational potential energy?

Explain your reasoning.

The types listed are not all-inclusive

0.45 kg

0.45 kg

Kinetic Energy (KE) energy of motion depends on mass and velocity

Formula: KE = ½ mv2

increases as mass or velocity increases and decreases as mass or velocity decreases

Which soccer ball has more kinetic energy? Explain your reasoning.

2 m/s 3 m/s

0.45 kg0.45 kg

What is the difference

between speed and velocity?

Relationship Between PE and KE

PE KE

What is happening to the PE and KE as the soccer ball falls to the feet of the mid-fielder?

What about the PE/KE graph could

be considered misleading?

Practice Problems A diver weighing 46 kg is preparing for a dive from

the 10 meter diving platform. How much gravitational potential energy does the diver have?

A cheetah weighing approximately 50 kg was seen chasing a gazelle at a speed of 32.4 m/s. What is the kinetic energy of the cheetah? KE = 1mv2

2(1)_____________ 2

K.E. = (50 kg)(32.4 m/s)2= 26,244 J

PE = mgh P.E. = (46 kg)(9.8 m/s2) = 4,508 J(10 m)

Earth’sGravity

Potential and Kinetic Energy Practice Sheet

Complete the Potential and Kinetic Energy Practice Sheet Quietly on your own!

When you are done, raise your hand to receive a stamp.

Be prepared to share answers in class!