News Flash!

There was a large commotion today at the coast near the town of Perry‘s Peak. A large group of whales became stranded on the beach. This presented a huge problem for sun bathers and nature enthusiasts. The bigger problem is how to rescue them before they perish.

The onlookers tried everything they could think of from pushing the whales into the water with tractors to bribing the whales with food. Nothing has worked so far. The town’s mayor is hoping that a solution can be found soon!

Real World Solutions:

Levers & Pulleys ProjectHow can we use our knowledge of levers and pulleys to solve real world

problems?

For this project, you will be organizing into “companies” to solve real-life problems involving the use of levers or pulleys. You will begin by answering the following four guiding questions:

What will we lift? How heavy is it? How high will we need to lift it? What is the best way to lift the load? (lever or pulley)

This first stage may involve some research. For example, if the challenge you have chosen involves moving a whale, you might need to look up the average weight of a whale.

The next step will be to create a scenario in which your load must be moved and to where. This would be the “real life problem” aspect of the assignment. You will answer the following guiding questions:

Why does my load need to be lifted? Who needs the load lifted? Where does my load need to go? What is my timeline for lifting the load?

You will need to create a newspaper ad or feature story to introduce the scenario you are solving. For example, if your problem involves moving a piano, you may create a “help wanted ad” for a person requesting help from a local company. On the other hand, you might be using a feature story in a newspaper about a beached whale needing lifted from your local beach.

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P erry Peak News

Beached Whales!

Following this step, you will need to determine the dynamics of your company. You will need to answer the following questions:

What is the company’s name? What kind of work does your company do? What is your company’s slogan? What role(s) will each member (or

employee) play in the company? What is your plan for accomplishing the

project and managing your time so that you meet the required deadlines?

You will eventually create a company poster advertising your company including your company name, slogan, and type of work that you do.

Company Name: Team Members:

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Cranes Incorporated

Business solutions for life!

Next, you will need to do the math behind the assignment. All students in the group must work together on this portion of the assignment. Work must be shown in the boxes provided on the proposal sheet. You will be applying skills and knowledge that you have acquired throughout our science module. Be sure to determine which simple machine is the BEST choice for completing the job! Use the following as a guide:

Levers:1. Determine the weight of the object being moved.2. Determine the class of lever that you will use for this assignment.3. Determine the location of the effort and load that will give you the

greatest advantage.4. Determine the distance from the fulcrum to the load.5. Determine the distance from the fulcrum to the effort.6. Calculate the Newtons needed to lift the load using the formula.

Load x Distance Fulcrum to Load = Effort x Distance Fulcrum to Effort

Ex: 220g x 20cm = e x 10cm

4400 = 10e

4400 = 10e 10 10

440g = e

4.4 Newtons = effort

7. Determine the price you are going to charge per Newton of effort to lift the load.

8. Determine the cost involved in building the lever (*may require some research). Add this cost in to your price.

9. Calculate the final price you will charge for your work. Is it a reasonable price? Do adjustments need to be made?

Pulleys:

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1. Determine the weight of the object being moved (load).

2. Determine the distance that your object needs to be moved.

3. Determine the type of pulley that you will use to accomplish this.

4. Determine the number of rope arms you will need if you are using a compound pulley. Keep in mind that one person must be able to lift the weight of the load when you are done designing your pulley system.

5. Determine the amount of rope that you need to move the required distance.

Length of Rope = Distance load needs to move x # of Rope Arms used on your pulley

Ex: 10 m x 3 rope arms = 30 meters of rope

6. Determine the amount of effort it will take to lift the load.

Effort = Load ( lbs/g/kg) / # of RopesEx: 12 lbs. / 2 ropes = 6 lbs. that will need to be lifted

7. Calculate the amount of work you will need to do.

Work (Newtons per cm/m/mile) = Force (Effort in Newtons) x Distance (in cm/m/miles)8. Determine the price you are going to charge for each N per distance of

work.9. Add in the price of the rope and pulley(s) (*may require some research).10.Calculate the final price you will charge for your work. Is it reasonable?

Does it need to be adjusted?Next, you will write up your proposal. This is the overall plan for your project. It will be submitted to the teacher for approval. Later, it will be used as a “pitch” to your prospective client.

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Project Proposal: Completion Date:1. What is your overall

scenario or problem?

2. What will you lift?

3. How heavy is the load?

4. How high will you need to lift the load?

5. What is the best way to lift the load?

6. Place your calculations in the box here & draw an illustration if necessary.

7. What will you charging your client for this service?

(calculations) 8. What is your company

name & slogan?9. What tasks will each

member of your group complete?

You will need to complete the following components for this project:

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During the final stage of the project, each company will “pitch” their proposal to convince their clients that their company is the right company for the job and should be hired for the work. This portion of the project should include the following:

1. Hang your presentation board in front of the room.2. Introduce your company and employees.3. Address the problem that you are being asked to solve.4. Explain your solution to the problem.5. Explain your pricing6. Finish off by telling the “client” why your company is the

“right company” for the job.

Scoring for this project will be based on the rubrics provided. Each student will receive both a group score and an individual score for their work and participation in this project.

Please keep in mind the following organizational points:

i. Groups will be chosen by the teacher

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A newspaper ad or feature story to introduce the problem your client has

A proposal for the work to be completed

A company poster advertising your name, slogan, and the type of work that you do

A company presentation to the class

ii. Most of the work will be completed in classiii. Companies will each have a folder that contains their workiv. Folders will be labeled and left in the classroom (no official papers may leave the

room)v. The assignment and requirements can be accessed online in case you need to view it

from home

*Individual Scoring*

*Rubric*Company Name ___________________________

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Name:

_____ I was on task and needed no reminders to get back to work.

_____ I was participating and completing my assigned tasks for the project.

_____ I was talking only with my group members and only about our project.

5 pts = always 3 pts. = somewhat 1 pt. =not often

Name:

_____ I was on task and needed no reminders to get back to work.

_____ I was participating and completing my assigned tasks for the project.

_____ I was talking only with my group members and only about our project.

5 pts = always 3 pts. = somewhat 1 pt. =not often

CATEGORY 10 8 6 4 2FeatureStory

Feature story or want ad introduces a real world problem. The why, who, where, and what questions are covered. Ad or story is creative, visually appealing, and contains few errors.

Feature story or want ad introduces a real world problem. The why, who, where, and what questions are covered. Ad or story is somewhat creative, and contains several errors.

Feature story or want ad introduces a real world problem. Most of the why, who, where, and what questions are covered. Ad or story lacks creativity and contains many errors.

Feature story or want ad introduces a real world problem. One or more of the why, who, where, and what questions are not covered.

Feature story or want ad lacked a real world problem and/or was missing answers to several of the key questions

JobProposal

The project proposal contains all 9 necessary parts. Calculations are correctly computed, appropriate simple machine is chosen for the job, and the pricing seems reasonable. Proposal was turned in on time.

One of the following occurred: -a part is missing -a calculation was done incorrectly -the wrong machine was chosen for the job -pricing seemed unreasonable –deadline was not met

2 of the following occurred: -a part is missing -a calculation was done incorrectly -the wrong machine was chosen for the job -pricing seemed unreasonable –deadline was not met

3 of the following occurred: -a part is missing -a calculation was done incorrectly -the wrong machine was chosen for the job -pricing seemed unreasonable –deadline was not met

4 of the following occurred: -a part is missing -a calculation was done incorrectly -the wrong machine was chosen for the job -pricing seemed unreasonable –deadline was not met

Company Poster

The company poster contains a visually appealing picture, easy to read name, creative slogan, and lets the reader know the type of work that you do. Poster contains few errors and is neatly done.

One of the following occurred: -The poster contains no picture -The name is not present or difficult to read -The slogan is missing or not creative -The type of work you do is missing from the poster -The poster is sloppy or contains errors

2 of the following occurred: -The poster contains no picture -The name is not present or difficult to read -The slogan is missing or not creative -The type of work you do is missing from the poster -The poster is sloppy or contains errors

3 of the following occurred: -The poster contains no picture -The name is not present or difficult to read -The slogan is missing or not creative -The type of work you do is missing from the poster -The poster is sloppy or contains errors

4 of the following occurred: -The poster contains no picture -The name is not present or difficult to read -The slogan is missing or not creative -The type of work you do is missing from the poster -The poster is sloppy or contains errors

Company Presentation

The presentation board is complete and hanging in front of the room, the employees are introduced, the problem was addressed, a solution was presented, pricing was explained, and the company was persuasive in their final statement. All members in the group contributed.

One of the following occurred: -The presentation board is missing -The problem was not clear or missing -The solution was not given or was unclear -The pricing was left out -The company wasn't very convincing-Not all members of the group contributed

2 of the following occurred: -The presentation board is missing -The problem was not clear or missing -The solution was not given or was unclear -The pricing was left out -The company wasn't very convincing-Not all members of the group contributed

3 of the following occurred: -The presentation board is missing -The problem was not clear or missing -The solution was not given or was unclear -The pricing was left out -The company wasn't very convincing-Not all of the members contributed

4 of the following occurred: -The presentation board is missing -The problem was not clear or missing -The solution was not given or was unclear -The pricing was left out -The company wasn't very convincing-Not all of the members contributed

Final Score: Comments:

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