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!
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