Sir Isaac Newton was one of the greatest scientists and mathematicians that ever lived.
He was born in England on December 25, 1643. He was born the same year that Galileo died.
He lived for 85 years.
Isaac Newton was raised by his grandmother. He attended Free Grammar School and then went on to
Trinity College Cambridge. Newton worked his way through college. While at college he became interested in math,
physics, and astronomy. Newton received both a bachelors and masters degree.
While Newton was in college he was writing his ideas in a journal.
Newton had new ideas about motion, which he called his three laws of motion.
He also had ideas about gravity, the diffraction of light, and forces.
Newton's ideas were so good that Queen Anne knighted him in 1705.
His accomplishments
laid the foundations for modern science and revolutionized the world.
Sir Isaac Newton died in 1727.
In this lesson you will develop an understanding of each of Newton's Three Laws of Motion.
According to Newton's first law...
An object at rest will remain at rest unless acted on by an unbalanced force.
An object in motion continues in motion with the same speed and in the same direction
unless acted upon by an unbalanced force.
This law is often called
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What does this mean?
This means that there is a natural tendency of objects to keep on doing what they're doing.
All objects resist changes in their state of motion. In the absence of an unbalanced force, an object in motion will maintain
this state of motion.
Let's study the "skater" to understand this a little better.
What is the unbalanced force in this picture?
What happened to the skater in this picture?
This law is the same reason why you should always wear your seatbelt.
Newton's First Law of Motion,
let's go on to his Second Law of Motion.
According to Newton's second law...
Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object). |
What does this mean?
Everyone unconsiously knows the Second Law. Everyone knows that heavier objects require more force to
move the same distance as lighter objects.
However, the Second Law gives us an exact relationship between force,
mass, and acceleration. It can be expressed as a mathematical equation:
or
FORCE = MASS times ACCELERATION
This is an example of how Newton's Second Law works:
Mike's car, which weighs 1,000 kg, is out of gas. Mike is trying to push the car to a gas station,
and he makes the car go 0.05 m/s/s. Using Newton's Second Law, you can compute how much force
Mike is applying to the car.
Answer = 50 newtons
This is easy, let's go on to
Newton's Third Law of Motion
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or
FORCE = MASS times ACCELERATION
Answer = 50 newtons
According to Newton's third law...
For every action there is an equal and opposite re-action. |
What does this mean?
This means that for every force there is a reaction force that is equal in size,
but opposite in direction. That is to say that whenever an object pushes another object it
gets pushed back in the opposite direction equally hard.
Let's study how a rocket works to understand
Newton's Third Law.
The rocket's action is to push down on the ground with the force of its powerful engines,
and the reaction is that the ground pushes the rocket upwards with an equal force.
UP,
UP,
and
AWAY!
The rocket's action is to push down on the ground with the force of its powerful engines, and the reaction is that the ground pushes the rocket upwards with an equal force.
UP,
UP,
and
AWAY!
INDICADORES DE LOGRO 3 PERIODO |
3.1. Determines that the properties of materials (e.g., density and volume) can be compared and measured (e.g., using rulers, balances, and thermometers).
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3.2. Identifies the differences and similarities
between mixtures and solutions. |
3.3. Understands how friction affects an
object in motion and that the motion of an object can be described and measured |
3.4. Recognizes various forms of energy
(e.g., heat, light, and electricity) and knows that some materials conduct heat better than others. |
3.5. Traces the flow of energy
in a system (for example, electricity in a circuit to produce heat, light, sound, or magnetic fields). |
3.6. Describes the characteristics of stars,
including the Sun. |
3.7- Participates in the Science Fair using scientific skills in processes to do research based upon Life, Physical and Earth Science.
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Coming Up!!!!!!! Science Fair
Date:
The Scientific Method
The scientific method is the process all scientists use to investigate science questions. It involves identifying a problem, learning what is already known about that problem, thinking of a solution or answer (called a hypothesis), doing an experiment to test your hypothesis, and reaching a conclusion based on what you learned. There are five steps to the scientific method. They are:
- Identify a problem.
- Formulate a hypothesis.
- Conduct an experiment-
- Collect data
- Data Analysis
- Conclusion
- Publishing/Display
The scientific method is not mysterious or difficult, although you can use it to work through some difficult problems. So before you even begin your project, it is important that you understand the scientific method. Using it to do your project takes some thought, but that’s what science is all about!
Science Fair Project Poster
Science fair project posters typically consist of three columns of text and images.
Here's an example of how you can organize a science fair project poster to clearly display your use of the scientific method for your project.
· Title
The title should be an accurate description of the project. The title is usually centered at the top of the poster.
The title should be an accurate description of the project. The title is usually centered at the top of the poster.
· Pictures/Drawings
Try to include color photographs or drawings of your project, samples from the project, tables, and graphs.
Try to include color photographs or drawings of your project, samples from the project, tables, and graphs.
· Problem/ Question
Sometimes this section is called 'Background'. This section introduces the topic of the project, explains your interest in the project, and states the purpose of the project.
Sometimes this section is called 'Background'. This section introduces the topic of the project, explains your interest in the project, and states the purpose of the project.
· Hypothesis
Explicitly state your hypothesis
Explicitly state your hypothesis
· Materials
List the materials you used in your project
List the materials you used in your project
· Procedure
Describe the procedure that you used to perform the project. If you have a photo or diagram of your project, this is a good place to include it.
· Data and Results
Data and Results are not the same thing. Data refers to the actual numbers or other information you obtained in your project. Data is often presented in a table or graph. The Results section explains what the data means.
Data and Results are not the same thing. Data refers to the actual numbers or other information you obtained in your project. Data is often presented in a table or graph. The Results section explains what the data means.
· Conclusion
The Conclusion focuses on the Hypothesis or Question as it compares to the Data and Results. What was the answer to the question? Was the hypothesis supported? What did you find out from the experiment?
The Conclusion focuses on the Hypothesis or Question as it compares to the Data and Results. What was the answer to the question? Was the hypothesis supported? What did you find out from the experiment?
· References
You may need to cite references or provide a bibliography for your project. Reference may be cited on the posted or printed out and placed below the poster.
You may need to cite references or provide a bibliography for your project. Reference may be cited on the posted or printed out and placed below the poster.
SCIENCE FAIR 2011-2012: AGENDA
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DATE
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A C T I V I T Y
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AUGUST 31, 2011
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Science Teachers will socialize the Science Fair Project in their classes.
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SEPTEMBER 5th - 27th , 2011
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Teachers will guide students toward the science fair project choices.
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OCTOBER 3rd -6th 2011
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First Deadline for choosing a project: Teachers will assess the students’ first choices.
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NOVEMBER 1st – 4th 2011
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Second Deadline for choosing a project: Teachers will assess the students second choices.
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NOVEMBER 8th – 11th , 2011
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Projects must be chosen by this week.
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NOVEMBER 23rd-DECEMBER 13th ,2011
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Students will research their projects themes.
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DECEMBER 14th ,2011
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Deadline for submitting the theoretical framework paper.
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JANUARY 16th , 2012
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Teachers will start to guide the students projects.
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FEBRUARY 29th , 2012
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First Auditorial: Students will present the advances of the project.
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MARCH 30th , 2012
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Second Auditorial: Students will present the advances of the project.
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APRIL 9th-17th , 2012
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Getting everything ready for Science Fair Day.
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APRIL 18th , 2012
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SCIENCE FAIR PROJECT PRESENTATION
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THE HUMAN BODY SYSTEMS
SCIENCE
The organization of living things can be seen like a pyramid or tree with seven major levels or categories: Kingdom, Phylum, Class, Order, Family, Genus, Species.
