 Select your grade level  Click The Leaf Chronicle  Enter Username: NIE  Enter Password: nie2013.

Slides:



Advertisements
Similar presentations
Chapter 14 Buoyancy.
Advertisements

Let’s Talk About Buoyancy!
Properties of Fluids. Buoyancy Fluid = a liquid OR gas Buoyancy = The ability of a fluid (a liquid or a gas) to exert an upward force on an object immersed.
Lesson 5.2 Archimedes’ Principle
Who is ? Lived: BC in Syracuse, Sicily Education: Studied in Alexandria, Egypt, under the followers of Euclid Inventions: War machines, planetarium,
IPC B Module 3 What two fluids are present in this background picture?
Upthrust.
Buoyancy & Archimedes’s Principle
Pg. 82 Floating and Sinking
A look at buoyancy and ballast Mr. Williams Grade 8 Science
Buoyancy.
The tendency or ability of an object to float.
Buoyancy.
WHY DO OBJECTS FLOAT OR SINK IN A LIQUID ? When an object is put in a liquid. Two forces act on it : 1.Weight of the object acting downwards 2.Buoyant.
What is the relationship between buoyancy and the weight of displaced water? Archimedes’ Principle states that buoyancy is equal to the weight of the water.
Buoyancy and Pressure Force: Weight: Buoyancy Archimedes Principle Pressure Formulas and Atmosphere.
Chapter 3 Section 2 Buoyancy and Density
Density Density is a comparison of how much matter there is in a certain amount of space. Which square is more dense?
Problem Solving Unit 2. Problem Solving 1. Define the problem – What is the problem? 2. Generate possible solutions – What are some things I can do to.
Density and Buoyancy. Changes in Density We know as temperature increases, density decreases. Why?
BUOYANT FORCE LESSON 2. Buoyant Forces and Liquid Buoyant Force is an upward force which acts on an object that is being completely or partially immersed.
Ship Shape –density lesson 7 th grade Science. ENGAGE: THE SONG “ANCHORS AWAY” IS PLAYING AS STUDENTS ENTER THE ROOM PROBE: “FLOATING “ – CHOOSE THE BEST.
Penny Boat Lab Analysis
 Select your grade level  Click The Leaf Chronicle  Enter Username: NIE  Enter Password: nie2013.
 Select your grade level  Click The Leaf Chronicle  Enter Username: NIE  Enter Password: nie2013.
DENSITY Grade 8 Science.
EXPERIMENT Use the piece of aluminum foil to make a water-tight boat. See if you it will float. Now take the aluminum foil boat and crumple it up into.
Example Lesson: Buoyancy Why some objects float gravity buoyancy.
Section 2.  How can a huge ship float? Because the force pushing up on the ship opposes the weight of the ship pushing down  Supporting force is called.
1 200 pt 300 pt 400 pt 500 pt 100 pt 200 pt 300 pt 400 pt 500 pt 100 pt 200 pt 300 pt 400 pt 500 pt 100 pt 200 pt 300 pt 400 pt 500 pt 100 pt 200 pt 300.
Buoyancy: How can a ship made of iron that weighs about 200 million pounds float? FOIL SHAPEPREDICTIONOBSERVATIONEXPLANATION Boat Sink or Float Ball Sink.
Chapter Twelve: Properties of Matter  12.1 Properties of Solids  12.2 Properties of Fluids  12.3 Buoyancy.
Fluid Mechanics ICP Chapter 8. Liquids & Gases Have the ability to flow. Flow = the pieces can move around each other. Because they can flow, they are.
Density The mass per unit of volume of a substance.
Density & Buoyancy. Density Density = Mass/Volume What is the SI Unit for Mass? Volume? SI Unit for Density = kg/m 3 Also…g/cm 3 g/ml and kg/L The Density.
Floating and Sinking.  Density is a measure of how closely packed the atoms in a substance are  Density is a physical property  All matter has measurable.
Density Density is a comparison of how much matter there is in a certain amount of space. Which square is more dense?
BUOYANCY. Definition: BUOYANCY: BUOYANCY: Is a measure of the upward force a fluid exerts on an object. Is a measure of the upward force a fluid exerts.
FORCES AND FLUIDS. Some things to bring out of the recesses of your mind: Fluids: any matter that has the ability to flow = liquid gas Force: any push.
Fluid Mechanics Chapter 8. Mass Density The concentration of matter of an object, measured as the mass per unit volume of a substance. Represented by.
Good Morning! 6/5/2016 Starter: why is it that a 1000 mega gram cruise ship can float when a ½ kg rock sinks? (there are two answers really) Today we.
Science 8: Mix and Flow of Matter
Density is the amount of mass in a specific volume cm 3.
Density and Buoyancy Review 1-20 study notes. 1. Density =
Good Morning! 12/5/2015 Starter: why is it that a 1000 mega gram cruise ship can float when a ½ kg rock sinks? (there are two answers really) Today we.
SINK OR FLOAT COPY CHART Make prediction OBJECTPREDICT S or FACTUAL S or F Empty plastic jar Water filled plastic jar Rubber stopper wood Metal clip cork.
WHAT MAKES A BOAT FLOAT? DO NOW: ANSWER THIS QUESTION IN YOUR NOTEBOOKS.
Mass per Unit Volume Equation: Density =Mass X Volume.
Engineering a Barge. Who Designs and Builds Ships? Marine engineers and naval architects design, build, and maintain ships from aircraft carriers to submarines,
BUOYANT FORCE What makes objects float?
You know that Density is a measurement of Mass ÷ Volume. Therefore Mass and Volume amounts affect the density. If individual particles have more mass,
STEM Lab #2: Penny Boat Challenge. A food manufacturer needs a ship to deliver their products overseas. To save money on fuel, the manufacturer is looking.
Chapter 11, Section 2 Floating and Sinking. What is Density? A comparison of how much matter there is in a certain amount of space (solids, liquids, gases)
Topic: Archimedes Principle PSSA: C / S8.C.3.1.
Cornell Notes 3.3 – Buoyancy
Properties of Fluids What happens if you drop a penny into a cup of water? Why? The nail sinks because the density of the steel is greater than the.
Floating and Sinking.
Density and Buoyancy Chapter 11.2 Page 424.
Buoyancy.
Foil Boat Activity By Lauren Duderstadt.
How could we explain the relationship between density and buoyancy?
Unit 2 Floating and Sinking.
Upthrust and Gravity.
Floating and Sinking.
Why Did the Titanic Sink?
Applying Archimedes Principle
Floating and Sinking Section 6.3.
Buoyancy The buoyant force is the upward force caused by
Chapter Twelve: Properties of Matter
Presentation transcript:

 Select your grade level  Click The Leaf Chronicle  Enter Username: NIE  Enter Password: nie2013

 Target: I can demonstrate understanding of the Engineering Design Process by applying the design process to research, design, build, and test an aluminum foil boat that will stay afloat with 20 quarters.

Target: I can apply the Engineering Design Process to design an aluminum foil boat that will hold the most quarters.  Standard for Technological Literacy  Standard 3 Develop an understanding of the connections between technologies and other fields of study.  Standard 8 Develop an understanding of the attributes of design.  Standard 9 Develop an understanding of engineering design.  Standard 10 – The Role of Troubleshooting, research and development, invention and innovation, and experimentation in problem solving.  Standard 11 – Apply the design process.

 During this semester, we are going to learn about different types of forces.  Today we are going to learn about a force called buoyancy.  Buoyancy is the force that makes things float. Science Review Target: I can apply the Engineering Design Process to design an aluminum foil boat that will hold the most quarters.

 Buoyancy:  An upward force on an object immersed in a liquid equal in magnitude to the weight of the displaced liquid. Buoyancy Target: I can apply the Engineering Design Process to design an aluminum foil boat that will hold the most quarters.

 The buoyancy of an object is related to its density.  The density of an object is defined as, its mass divided by its volume. Density Target: I can apply the Engineering Design Process to design an aluminum foil boat that will hold the most quarters.

 Because of this, something that is small but heavy for its size (a coin for example) has a high density.  Something that is light for its size (a box full of Styrofoam peanuts, for example) has low density. Density Target: I can apply the Engineering Design Process to design an aluminum foil boat that will hold the most quarters.

 Things that have high density sink, while things with low density float.  Would the coin sink or float?  How about the box of Styrofoam ? Density Target: I can apply the Engineering Design Process to design an aluminum foil boat that will hold the most quarters.

 The buoyant force happens because water is pushed out of the way, or displaced.  The more water is displaced, the stronger the buoyant force.  Displace means to push a fluid out of the way and take its place. Displacement Target: I can apply the Engineering Design Process to design an aluminum foil boat that will hold the most quarters.

 Now think about a boat. If you put something heavy on it, does it rise or sink? Displacement Target: I can apply the Engineering Design Process to design an aluminum foil boat that will hold the most quarters.

 Now think about a boat. If you put something heavy on it, does it rise or sink?  Sink Displacement Target: I can apply the Engineering Design Process to design an aluminum foil boat that will hold the most quarters.

 Is more or less water displaced? Displacement Target: I can apply the Engineering Design Process to design an aluminum foil boat that will hold the most quarters.

 Is more or less water displaced?  more Displacement Target: I can apply the Engineering Design Process to design an aluminum foil boat that will hold the most quarters.

If a 2 pound block of wood displaces 3 pounds of water, will it float in water? Displacement Target: I can apply the Engineering Design Process to design an aluminum foil boat that will hold the most quarters.

If a 2 pound block of wood displaces 3 pounds of water, will it float in water? Yes, because the block of wood weighs less than the water it displaces. Displacement Target: I can apply the Engineering Design Process to design an aluminum foil boat that will hold the most quarters.

If a 5 pound block of metal displaces 1 pound of water, will it float in water? Displacement Target: I can apply the Engineering Design Process to design an aluminum foil boat that will hold the most quarters.

If a 5 pound block of metal displaces 1 pound of water, will it float in water? No, because the block of metal will weigh more than the water it displaces. Displacement Target: I can apply the Engineering Design Process to design an aluminum foil boat that will hold the most quarters.

 How does a boat stay afloat in the water?  Buoyancy - the ability of an object to float in water or air.  The buoyancy of an object is related to its density.  The buoyant force happens because water is pushed out of the way, or displaced. Science Review Target: I can apply the Engineering Design Process to design an aluminum foil boat that will hold the most quarters.

 Today, you are going to research boat designs. You will be given a design challenge that you will research, design, test, and evaluate a foil boat design. Target: I can apply the Engineering Design Process to design an aluminum foil boat that will hold the most quarters.

Career Connection: Marine Engineers and Naval Architects Marine engineers and naval architects design, build, and maintain ships from aircraft carriers to submarines, from sailboats to tankers. Bachelor’s Degree required Median salary in 2012: $88,100 per year

Marine Engineers and Naval Architects  Work Environment Work Environment  Marine Engineers typically work in offices, sometimes, they must go to sea on ships to test them or maintain them.

Marine Engineers and Naval Architects  How to Become a Marine Engineer or Naval Architect How to Become a Marine Engineer or Naval Architect  Marine engineers and naval architects typically have a bachelor’s degree in marine engineering, naval architecture, marine systems engineering, or marine engineering technology.

Aluminum Foil Boat Challenge Overview (Our Problem): You work for a large engineering corporation that designs boats. A large corporation is looking to hire your company to design a boat that can hold the most amount of merchandise. The rising costs of fuel is putting a damper on their profits so they want a boat that can hold more merchandise which means they can make less trips across the Pacific ocean to North America. You are in charge of the designing and testing of this project. You need to design a boat that can hold 20 quarters without sinking.

Aluminum Foil Boat Challenge Our Goal: Design an aluminum foil boat that will hold at least 20 quarters.

Target: I can apply the Engineering Design Process to design an aluminum foil boat that will hold the most quarters.  Overview of Steps  Research Boat designs using the websites from our class wikispace.  Choose a design  Make a prototype (1/2 sheet of paper)  Test Prototype (with 20 pennies) at the Official testing area – (my table)  Produce Final Boat Design  Test Final Boat Design (with 20 Quarters) may redesign and try again

Target: I can apply the Engineering Design Process to design an aluminum foil boat that will hold the most quarters. Criteria and Constraints  Materials you will need  Data Sheet (to record results)  ½ sheet of paper (for prototype)  1 sheet of aluminum foil I will supply:  Tub of water  Quarters  Pennies

Let’s go through the Engineering Design Process

Engineering Design Process Step 1: Ask Define the problem: Design a Foil Boat with the given materials that will successfully hold 20 quarters without taking on water. Conduct Research: Use the internet to research foil boat designs.

Engineering Design Process Step 2: Imagine Imagine Brainstorm Ideas - Which foil boat designs do you think are the best solution? Analyze Solutions – Narrow your ideas and choose one to make a prototype. Remember to answer the questions 1 & 2 on the My Paper Airplane Prototype sheet

Engineering Design Process Step 3: Plan Plan Build a Prototype – choose a design for your foil boat build a prototype using the ½ sheet of foil. Test the Prototype in our Official Testing Area (my table). Remember to answer numbers 3 & 4 on the My Paper Airplane Prototype worksheet Also, Record the results of your Prototype on the Data Sheet

Engineering Design Process Step 4: Create Create After testing the Prototype – construct the Final Design. Test your final design at our Official Testing Area (my table).

Engineering Design Process Step 5: Improve Improve You have 2 attempts to successfully hold 20 quarters. After each attempt, record the results on your data sheet. Make modifications and try again.

Engineering Design Process Target: I can apply the Engineering Design Process to design an aluminum foil boat that will hold the most quarters.  Remember today we applied the Engineering Design Process to complete a Foil Boat Challenge.  Engineers solve problems similar to this everyday.

Engineering Design Process Target: I can apply the Engineering Design Process to design an aluminum foil boat that will hold the most quarters.  By using the Engineering Design Process, engineers can determine the best solution to a problem.  Problems can be solved more efficiently by having a specific process to follow.

Reflect Target: I can apply the Engineering Design Process to design an aluminum foil boat that will hold the most quarters. Reflect (answer the Reflection Questions from our class wikispace.) Using the link on our wikispace, answer the Reflection questions. Select your grade level Select What is Engineering Scroll to Assignment 2 Click : Foil Boat Challenge Reflection Foil Boat Challenge Reflection I will come by and collect the Prototype/Flight Data Sheet. When you finish answering the questions, you may select an educational game from our class wikispace.