1. Technology Sixth Grade 2 nd Trimester 2014-2015

2. What is Technology? Technology is the use of natural resources to create items to help satisfy human needs and/or wants Technology is the use of natural resources to create items to help satisfy human needs and/or wants Provides us with most of the things we use in our society Provides us with most of the things we use in our society Used in all of the products, inventions, and discoveries made by people Used in all of the products, inventions, and discoveries made by people

3. Technology Around Us Look around… what sorts of technology do you see in this room? Look around… what sorts of technology do you see in this room?

4. Kinds of Technology Communication technology- includes computers, cell phones, DVD Players Communication technology- includes computers, cell phones, DVD Players Transportation technology- includes cars, commuter trains, planes, buses, bicycles Transportation technology- includes cars, commuter trains, planes, buses, bicycles Biotechnology- uses elements of biology (the study of living things) to create products. Examples include cereals and vitamins. Biotechnology- uses elements of biology (the study of living things) to create products. Examples include cereals and vitamins. Manufacturing technology- includes things made in factories Manufacturing technology- includes things made in factories Construction technology- includes houses bridges, skyscrapers, school buildings, etc. Construction technology- includes houses bridges, skyscrapers, school buildings, etc.

5. Through the years Technology continues to improve as years go on Technology continues to improve as years go on Computers used to be the size of the classroom Computers used to be the size of the classroom Now we have super thin tablets and cell phones that have more memory and storage space than those first computers Now we have super thin tablets and cell phones that have more memory and storage space than those first computers

6. What other sorts have technology have changed over time? In what ways? What other sorts have technology have changed over time? In what ways? Examples can include phones, cars, buildings, etc… Examples can include phones, cars, buildings, etc…

7. Technologically literate To be technologically literate means to be comfortable using technology To be technologically literate means to be comfortable using technology You are not afraid of it You are not afraid of it You also understand that sometimes it won’t work the way you want it to You also understand that sometimes it won’t work the way you want it to

8. Isaac Newton Isaac Newton A Brief History of his life and work

9. Isaac Newton- A Brief History Lived from 1642-1727 Lived from 1642-1727 Was a mathematician and physicist Was a mathematician and physicist Considered to be one of the greatest scientific minds of all time Considered to be one of the greatest scientific minds of all time Formulated laws of motion Formulated laws of motion Explains how objects move on Earth and in the heavens Explains how objects move on Earth and in the heavens

10. Additional Facts about Newton Created the modern study of optics Created the modern study of optics Built the first reflecting telescope Built the first reflecting telescope Insights in math led him to create the area of math called calculus Insights in math led him to create the area of math called calculus Used his mathematical theories to explain how he believed the physical world worked Used his mathematical theories to explain how he believed the physical world worked

11. Experiments he conducted- Gravity Observed his Laws of Motion and gravity in nature Observed his Laws of Motion and gravity in nature Inspired (according to legend) by watching an apple fall in an orchard Inspired (according to legend) by watching an apple fall in an orchard Results of this study led him to believe that the same force of gravity that pulled the apple to the ground was also what keeps the moon in orbit Results of this study led him to believe that the same force of gravity that pulled the apple to the ground was also what keeps the moon in orbit

12. Gravity the force of attraction by which terrestrial bodies tend to fall toward the center of the earth. (http://www.dictionary.com) the force of attraction by which terrestrial bodies tend to fall toward the center of the earth. (http://www.dictionary.com)http://www.dictionary.com Meaning that whatever goes up must eventually come down since it is being pulled downward by force of gravity Meaning that whatever goes up must eventually come down since it is being pulled downward by force of gravity

13. Laws of Motion It was during Newton’s scientific experiments that he developed what we know as Newton’s Three Laws of Motion. It was during Newton’s scientific experiments that he developed what we know as Newton’s Three Laws of Motion. Ideas such as inertia, force, and gravity are discussed in these laws Ideas such as inertia, force, and gravity are discussed in these laws

14. 1 st Law of Motion “An object at rest tends to stay at rest and an object in motion tends to stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force.” “An object at rest tends to stay at rest and an object in motion tends to stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force.”unless acted upon by an unbalanced forceunless acted upon by an unbalanced force This often refers the concept of inertia This often refers the concept of inertia Inertia: the resistance an object has to a change in its state of motion. Inertia: the resistance an object has to a change in its state of motion.state of motionstate of motion

15. 2 nd Law of Motion This law refers the amount of force on an object This law refers the amount of force on an object Force: a push or a pull upon an object which results from its interaction with another object. In general, Force is equal to the amount of mass of an object times the acceleration or F=m *a Force: a push or a pull upon an object which results from its interaction with another object. In general, Force is equal to the amount of mass of an object times the acceleration or F=m *a Force is measured in a unit called a newton Force is measured in a unit called a newton

16. Force Example Example A 2 Kg pineapple falls from the roof of OLH, accelerating toward the blacktop at a rate of 5 m/s. Assuming that F=m*a, we can calculate the force as: A 2 Kg pineapple falls from the roof of OLH, accelerating toward the blacktop at a rate of 5 m/s. Assuming that F=m*a, we can calculate the force as: F= 2Kg * 5 m/s F= 2Kg * 5 m/s Force = Newtons Force = Newtons

17. Force of Gravity Let’s say we drop our 2 kg pineapple again (the poor abused pineapple somehow survived the first drop), and is now accelerating at the force of gravity on Earth which is 9.8 m/s. What force does it land at? Let’s say we drop our 2 kg pineapple again (the poor abused pineapple somehow survived the first drop), and is now accelerating at the force of gravity on Earth which is 9.8 m/s. What force does it land at? Remember F=m*a Remember F=m*a

18. 3 rd Law of Motion For every action, there is an equal and opposite reaction. For every action, there is an equal and opposite reaction. Often involves action and reaction forces Often involves action and reaction forces The size of the first force equals the force on the second object. The size of the first force equals the force on the second object. Forces always come in pairs- equal and opposite action-reaction force pairs. Forces always come in pairs- equal and opposite action-reaction force pairs.

19. 3 rd Law Continued What does this mean? What does this mean? Example: When you sit in your chair, your body exerts a downward force on the chair and the chair exerts an upward force on your body. There are two forces resulting from this interaction - a force on the chair and a force on your body. Example: When you sit in your chair, your body exerts a downward force on the chair and the chair exerts an upward force on your body. There are two forces resulting from this interaction - a force on the chair and a force on your body. Sitting on the chair is the action, the chair putting forth the upward force is the reaction. Sitting on the chair is the action, the chair putting forth the upward force is the reaction.