Free Fall on the MoonFree Fall on the Moon

2/9/152/9/152/9 2/9 Power and Safety TB p. 460-464 CN Power and Safety TB p. 460-464 CN

TB p TB p 467 Essential Questions467 Essential Questions

2/102/10 Free Fall on the MoonFree Fall on the Moon TB: p. TB: p. 912-913 #1-5912-913 #1-5

2/112/11 Free Fall on the Moon Free Fall on the Moon TB: p. TB: p. 915-916 CN915-916 CN

TB: 918 Essential QuestionsTB: 918 Essential QuestionsHW: TB p. HW: TB p.

916 #1-3916 #1-3

2/122/12 Roller Coaster DesignRoller Coaster DesignHW: TB p. 919 #1-3,7HW: TB p. 919 #1-3,7

2/132/13 Roller Coaster DesignRoller Coaster Design

Date: Date: 2/92/9 Goal:Goal: I can I can calculate work and power. calculate work and power.

Bell RingerBell Ringer: 1. If a dog pulls : 1. If a dog pulls a sled with a force 60N for a sled with a force 60N for 300 meters, what is the work 300 meters, what is the work done by the dog? W= F (d) done by the dog? W= F (d)

2. If it takes the dog 30 2. If it takes the dog 30 second, what is the power second, what is the power the dog produces?the dog produces?

P=W/tP=W/t

Date: Date: 2/9 2/9 Goal:Goal: I can I can calculate work and power. calculate work and power.

videovideo

Date: Date: 2/9 2/9 Goal:Goal: I can calculate I can calculate work and power. work and power.

If you need more help:If you need more help:

Khan AcademyKhan Academy

https://https://www.khanacademy.org/www.khanacademy.org/science/physicsscience/physics

Physics ClassroomPhysics Classroom

http://http://www.physicsclassroom.com/www.physicsclassroom.com/

Date: Date: 2/92/9 Goal:Goal: I can I can understand safety understand safety considerations due to considerations due to acceleration acceleration

Independently read TB p. Independently read TB p. 460-464 and take Cornell 460-464 and take Cornell NotesNotes

Date: Date: 2/92/9 Goal:Goal: I can I can understand safety understand safety considerations due to considerations due to acceleration acceleration

With your partner With your partner complete complete

TB p.467 Essential TB p.467 Essential QuestionsQuestions

Date: Date: 2/102/10 Goal:Goal: I can compare I can compare the acceleration due to gravity the acceleration due to gravity on earth to gravity on the moonon earth to gravity on the moon

Bell RingerBell Ringer: Which of the two : Which of the two examples supplied the most examples supplied the most power?power?

A boy that did 543 J of work in 4s? A boy that did 543 J of work in 4s?

A man that did 756J of work in A man that did 756J of work in 5.5s?5.5s?

P=W/tP=W/t

Bell ringerBell ringer

Boy P= 543/4s= 135.75 WBoy P= 543/4s= 135.75 W

Man P=756/5.5s= 137.4 WMan P=756/5.5s= 137.4 W

Date: Date: 2/102/10 Goal:Goal: I can I can compare the acceleration compare the acceleration due to gravity on earth due to gravity on earth compared to the mooncompared to the moon

MYP gradesMYP grades

Date: Date: 2/102/10 Goal:Goal: I can I can compare the acceleration compare the acceleration due to gravity on earth to due to gravity on earth to gravity on the moongravity on the moon

TB p. 912 TB p. 912

Date: Date: 2/102/10 Goal:Goal: I can I can compare the acceleration compare the acceleration due to gravity on earth to due to gravity on earth to gravity on the moongravity on the moon

TB p. 912 TB p. 912

Complete investigate #1-5 Complete investigate #1-5 with your shoulder partner. with your shoulder partner. Answer in your NBAnswer in your NB

Date: Date: 2/11 2/11 Goal:Goal: I can apply I can apply proportions to compare proportions to compare situationssituations

Three weightlifters were 1.5, 1.7, and 2.0 meters tall Three weightlifters were 1.5, 1.7, and 2.0 meters tall respectively. All three lifters raised an identical 75-respectively. All three lifters raised an identical 75-kilogram mass above their heads. Which statement is kilogram mass above their heads. Which statement is correct?correct?

a.a. The 1.5-m tall lifter did the most work.The 1.5-m tall lifter did the most work.

b.b. The 2.0-m tall lifter did the most work.The 2.0-m tall lifter did the most work.

c.c. The 1.7-m tall lifter did the most work.The 1.7-m tall lifter did the most work.

d.d. All three lifters did the same amount of work.All three lifters did the same amount of work.

Date: Date: 2/11 2/11 Goal:Goal: I can I can apply proportions to apply proportions to compare situationscompare situations

Complete TB p.912-914 #1-5Complete TB p.912-914 #1-5

Date: Date: 2/11 2/11 Goal:Goal: I can I can apply proportions to apply proportions to compare situationscompare situations

Independently read TB p.915-916 Independently read TB p.915-916 and take CNand take CN

Date: Date: 2/11 2/11 Goal:Goal: I can I can apply proportions to apply proportions to compare situationscompare situations

Complete TB p.918 Essential Complete TB p.918 Essential QuestionsQuestions

In you NBIn you NB

Date: Date: 2/11 2/11 ObjectiveObjective: I : I can work together as a can work together as a team to develop a roller team to develop a roller

coaster project coaster project Read DirectionsRead Directions

Date: Date: 2/11 2/11 ObjectiveObjective: I : I can work together as a can work together as a team to develop a roller team to develop a roller

coaster project coaster project Bell Ringer:Bell Ringer:

1.1. Who is the group of riders for your roller Who is the group of riders for your roller coaster?coaster?

2.2. What is one modification you made for you roller What is one modification you made for you roller coaster?coaster?

3.3. What is the most thrilling part of your roller What is the most thrilling part of your roller coaster?coaster?

Poster Board Roller Poster Board Roller coaster projectcoaster projectProject responsibilitiesProject responsibilities

Partner #1 Roller Coaster design (with group input)Partner #1 Roller Coaster design (with group input)

Partner #2 Energy transformationPartner #2 Energy transformation

Partner #3 Air resistance and frictionPartner #3 Air resistance and friction

Partner #4 Energy getting to the topPartner #4 Energy getting to the top

Group: Target audience, Thrills, Description ofGroup: Target audience, Thrills, Description of

modifications to the roller coaster. modifications to the roller coaster.

Include : mass of car, safety, GPE at top of the first hill, KE at the Include : mass of car, safety, GPE at top of the first hill, KE at the bottom of the first hill, bottom of the first hill,

Roller CoasterRoller CoasterTall RC Tall RC 20-40 meters20-40 meters

Middle RCMiddle RC 10-20 meters10-20 meters

Low RCLow RC 5-10 meters5-10 meters

GPE=mghGPE=mghmass= people + carsmass= people + cars

1lbs = .5kg1lbs = .5kg

Car = 500 lbsCar = 500 lbs

Average adult= ?lbsAverage adult= ?lbs

Date: Date: 2/11 2/11 ObjectiveObjective: I can work : I can work together as a team to develop a together as a team to develop a

roller coaster project roller coaster project

11stst Hill HillHow high is the first hill?How high is the first hill?

? m

22ndnd Hill HillDetermine the height of the 2Determine the height of the 2ndnd hill? hill?

?

Car massCar massDetermine the mass of the roller Determine the mass of the roller coaster car and people.coaster car and people.

Why?Why?

WorkWork1.1. 30 second to the top of the 130 second to the top of the 1stst hill hill

2.2. The cars are accelerating at 3m/sThe cars are accelerating at 3m/s22 up the 1 up the 1stst hill hill

W= F (d)W= F (d)

How do you get the force?How do you get the force?

Gravitational Gravitational Potential EnergyPotential Energy

1.1. What is the GPE at the top of the first What is the GPE at the top of the first hill?hill?

Equation?Equation?

GPE = mghGPE = mgh

Kinetic EnergyKinetic EnergyWhat is the KE at the bottom of the first What is the KE at the bottom of the first hill?hill?

How is KE at the bottom of the first hill How is KE at the bottom of the first hill related to GPE at the top of the first related to GPE at the top of the first hill?hill?

KEKEbottombottom=GPE=GPEtoptop

VelocityVelocityWhat is the velocity at the bottom of the What is the velocity at the bottom of the

first hill?first hill?

What do we know so far?What do we know so far?

Workbook page 43Workbook page 43

VelocityVelocityKEKEbottombottom=GPE=GPEtoptop

1/2 mV1/2 mV22(Bottom) = mgh(top)(Bottom) = mgh(top)

Cancel out massCancel out mass

Arrange to solve for VArrange to solve for V

VV22=2gh=2gh

Velocity at the bottomVelocity at the bottom

DesignDesignUpdate your roller coaster design.Update your roller coaster design.

?m

?m/s

Roller Coaster Project Roller Coaster Project Presentation ChecklistPresentation Checklist

The final presentation needs to The final presentation needs to include:include:

Top and side view drawingsTop and side view drawings

Appropriate calculations of GPE, Appropriate calculations of GPE, KE, velocity, and accelerationKE, velocity, and acceleration

Written report of physics concepts Written report of physics concepts used in the design of the roller used in the design of the roller coastercoaster

Groups will have 3 minutes to Groups will have 3 minutes to presentpresent

Poster Poster boardboard

?m

?m/s

Coaster Name

Audience and Modifications Calculations-energy transfer-velocity-Points of acceleration

Explain the roller coaster and its thrills

Safety

Friction and air resistance

Add pictures and colorThrough out

Roller CoasterRoller CoasterTall RC Tall RC 20-40 meters20-40 meters

Middle RCMiddle RC 10-20 meters10-20 meters

Low RCLow RC 5-10 meters5-10 meters

GPE=mghGPE=mghmass= people + carsmass= people + cars

1lbs = .5kg1lbs = .5kg

Car = 500 lbsCar = 500 lbs

Average adult= ?lbsAverage adult= ?lbs

Turn in Notebook at the front tableTurn in Notebook at the front table

Place your poster by turtle tank-with Place your poster by turtle tank-with namesnames

Clean up your areaClean up your area

Put supplies awayPut supplies away

Turn in Notebook on counterTurn in Notebook on counter

Place your poster on desk up frontPlace your poster on desk up front

Clean up your areaClean up your area

Put supplies awayPut supplies away