Analyzing acceleration expermient

Analyzing and studying the acceleration, speed and velocity of a marble as a Go-cart in different contexts such as changes in velocity and direction.

0.    Hypothesis: When a marble advance through several points, its velocity decrease, and when a marble changes direction by hitting another object, it decelerates.

1.    Objectives.

__Analyze acceleration in different contexts, such as velocity and direction.

__See if an object accelerates or not if hits something.

__Know how to apply the theory of acceleration in the daily life.

__Learn how acceleration can affect effective and quality of an object.

2.    Materials and Reactives.

- Marble

- Chronometer (Timer)

- A channel or tunnel-like surface.

- Measuring Tape.

- Paper and pen. (To take notes and mark distances)

3.    Procedure.

a.     Measure with measuring tape a distance (optional) in the channel-surface.

b.     Mark the limits and distances.

c.      Throw the marble and start recording the time to see its velocity

d.     Now, mark some distances and get the time when the marble reach it to see its acceleration or deceleration.

e.     Record these results and make some calculations.

f.       Now repeat these steps throwing the marble faster or slower.

g.     Now, in a wall (it has to be in the floor) throw the marble (no in right angle) to see a change in direction.

h.     Take the time it takes the marble to reach the wall and a certain point, to see if it accelerates or decelerates.

i.       Record these observations and make some calculations.

4.    Observations and Results.

·           In every time we throw a marble in any distance, as it progresses it lose velocity and goes slower.

·           When a marble hits another object and changes direction, it goes slower or even stops.

·           If you throw the marble with more impulse it will go faster and last farther or even over pass the solid limit. (Vice versa)

·           Between more distance there is, less velocity the marble will have as it progresses. (Vice versa)

5.    Conclusions

The impulse and distance affects velocity and acceleration of an object.

ENERGY... YOU´VE GOT THE POWER

Hypothesis: Why is energy the base of our life?

Electricity is a form of energy. Energy is everywhere, energy could be light, chemical reactions and heat.             A world without energy will be so dark and so ugly. However, we can live with electricity because in this time is so important for use tools like: Cell phones, light bulb, television, hair dryer, iron, etc… Other while, without energy we will not be possible to do nothing, because all is energy, even we are energy. There will not be mechanical energy(is the energy of motion that does the work like the wind turns a windmill),Heat energy(where motion or rise in temperature is caused by heat like a fire in your fireplace),chemical energy( is the chemical reaction causing changes; food and fuel both store chemical energy),electrical energy(is when motion, light or heat is produced by an electrical current like the electric coils on your stove)or even gravitational energy(where motion, like water going over a dam, is caused by gravity's pull)JUST THINK A LIFE WITHOUT OF ENERGY!!!

In conclusion, nobody could live without energy. Energy is found in matter in all universe. Energy provides all day by day. ENERGY IS ALL!!!!!!!!!

REFERENCE:

1.      http://www.al.com/living/huntsvilletimes/index.ssf?/base/living/124367495056690.xmlcoll=1

2.      http://energyquest.ca.gov/movieroom/index.html

My Blog

Welcome to my blog!!!!!!!!

Hi, I am an boy of the city of Medellin,Colombia.

Colombia  "is a unitary constitutional republic comprising thirty-two departments. It is located in northwestern South America, bordered to the northwest by Panama; to the north by the Carribean city; to the east by Venezuela and Brazil; to the south by Ecuador and Peru and to the west by the Pacific Ocean. Colombia is the 26th largest country by area and the fourth largest in South America. With over 46 million people, the country is the 27th largest in the world by population and has the second largest population of any Spanish-speaking country in the world, afterMexico. Colombia is a middle power, and is the fourth largest economy in Latin America, and the third largest in South America. The production of coffee, flowers, emeralds, textiles, industrial chemicals, plastics, ferro-alloys, coal, oil and financial services are the most representative sectors of Colombia's economy. Colombia is an emerging market and it is also part of the group of emerging countries CIVETS.^[11] The world's third biggest bank HSBC has created a perspective on the economic outlook in 2050 where Colombia is seen playing a decisive role in the global economy, especially in the Americas"

Medellin " Is the second-largest city in Colombia. It is in the Aburrá Valley, one of the most northerly of the Andes in South America. To 2012, it has a population of 2.7 million. With its surrounding area, the metropolitan area of Medellín (área metropolitana de Medellín), composed by another nine cities, it is the second largest urban agglomeration in Colombia in terms of population and economy, with more than 3.5 million people.

Medellín was founded in 1616 by the Spaniard Francisco Herrera Campuzano as Poblado de San Lorenzo (Saint Lawrence Town) in present-day El Poblado. In 1675 the queen consort Mariana of Austria created the Villa de Nuestra Señora de la Candelaria de Medellín(Town of Our Lady of Medellín).

In 1826 the city was named the capital of the Department of Antioquia by the National Congress of the young Republic of Greater Colombia (Gran Colombia), comprised by present day Colombia, Venezuela, Ecuador and Panama. After Colombia won its independence from Spain, Medellín became the capital of the Federal State of Antioquia until 1888, with the proclamation of the Colombian Constitution of 1886. During the 19th century, Medellín was a dynamic commercial center, first exporting gold, then producing and exporting coffee.

At the beginning of the 21st century, the city has regained industrial dynamism, with the construction of the Medellín Metro commuter rail, and liberalized development policies, improved security, and improved education. Researchers at the Overseas Development Institutehave lauded the city as a pioneer of a post-Washington consensus 'local development state' model of economic development The city is promoted internationally as a tourist destination. Is considered by the GaWC as a sufficient city to be global city. Medellín is currently a candidate city to host the 2018 Summer Youth Olympics.

The Medellín Metropolitan Area produces 67% of the Department of Antioquia's GDP and 11% of the economy of Colombia. Medellín is important to the region for its universities, academies, commerce, industry, science, health services, flower-growing, festivals and nightlife.

In February 2013, Medellín was chosen and announced as the most innovative city in the world due to its recent advances on politics, education and social development"

This is my biology blog. 

THIS IS ME...I like to play soccer and to read books.

THIS IS MY TEAM!!!!

This is my Biology teacher( His name is Jesus Eduardo Carbono)

I study in "The Vermont School"It is a peacefull and happy place located in "The Retiro" It was founded in 1998.

Matter in Motion

Section 1 Measuring Motion What You Will Learn •" Describe the motion of an object by the position of the object in relation to a reference point. • Identify the two factors that determine speed. • Explain the difference between speed and velocity. • Analyze the relationship between velocity and acceleration. • Demonstrate that changes in motion can be measured and represented on a graph." "Look around you—you are likely to see something in motion. Your teacher may be walking across the room, or perhaps your friend is writing with a pencil." "Even if you don’t see anything moving, motion is still occurring all around you. Air particles are moving, the Earth is circling the sun, and blood is traveling through your blood vessels!" Observing Motion by Using a Reference Point "You might think that the motion of an object is easy to detect—you just watch the object. But you are actually watching the object in relation to another object that appears to stay in place. The object that appears to stay in place is a reference point. When an object changes position over time relative to a reference point, the object is in motion. You can describe the direction of the object’s motion with a reference direction, such as north, south, east, west, up, or down". What is a reference point? A reference point in physics is a point in space, regardless of the type of geometry that you are using that stays still and does not move.  Speed Depends on Distance and Time "Speed is the distance traveled by an object divided by the time taken to travel that distance. Look again at Figure 1. Suppose the time interval between the pictures was 10 s and that the balloon traveled 50 m in that time. The speed of the balloon is (50 m)/(10 s), or 5 m/s." "The SI unit for speed is meters per second (m/s). Kilometers per hour (km/h), feet per second (ft/s), and miles per hour (mi/h) are other units commonly used to express speed". Determining Average Speed "Most of the time, objects do not travel at a constant speed. For example, you probably do not walk at a constant speed from one class to the next. So, it is very useful to calculate average speed using the following equation:" Recognizing Speed on a Graph "Suppose a person drives from one city to another. The blue line in the graph in Figure 2 shows the total distance traveled during a 4 h period. Notice that the distance traveled during each hour is different. The distance varies because the speed is not constant. The driver may change speed because of weather, traffic, or varying speed limits. The average speed for the entire trip can be calculated as follows:" Bibliography: http://my.hrw.com/tabnav/controller.jsp?isbn=0030462495

Motion and forces

Motion and Forces "It’s hard to imagine a world where nothing ever moves. Without motion or forces to cause motion, life would be very dull! The relationship between force and motion is the subject of this unit. You will learn how to describe the motion of objects, how forces affect motion, and how fluids exert force. This timeline shows some events and discoveries that have occurred as scientists have worked to understand the motion of objects here on Earth and in space". Bibliography: http://my.hrw.com/tabnav/controller.jsp?isbn=0030462495

Science Fair

SIMON GALINDO AND MATIAS LOPERA. 

7A

VERMONT SCHOOL

CAN THE PLANTS INCLINE TO THE MAGNETS AND IT CAN AFFECT THE GROWTH OF THE PLANT?

VERMONT SCHOOL

Biology

7A

By

SIMON GALINDO ZULUAGA AND MATIAS LOPERA.

Medellín, Antioquia

05/05/2013

CAN THE PLANTS INCLINE TO THE MAGNETS AND IT CAN AFFECT THE GROWTH OF THE PLANT?

Introduction….

Most of the plants need soil, water and sun light to grow normal and healthy, but can we affect that growing for doing better? In this project we are going to see if magnetism can affect plants growth for good, to see if with these magnets we can do the growth process of the plant better by doing it faster and healthier. COME HERE AND LEARN!!!!

Theoretical Background

1.Magnetism:

“Magnetism is the force generated by any moving charged particle or charged particles. A magnetic field is the result of the motion of a charged particle or charged particles, and this field is generated in no other way. Any time a charged particle moves, it creates a magnetic field around its path of travel. There are no exceptions that we know of. Magnetism is a term that speaks to the phenomenon associated with a magnetic field and with its action on other things”

“The creation of a magnetic field by a moving charge or moving charges is this fundamental concept that is behind the term electromagnetic force, which is one of the four fundamental forces in the universe. Electricity and magnetism are tied together inextricably because of this it produce energy”

The magnetism is the force in which an object is attracted to one other. Every magnet has two poles. These poles are called north and south or north-seeking and south seeking poles. When the south poles of two magnets are placed near one another, they also are repelled from one another. When the north and south poles of two magnets are placed near one another, they are attracted to one another.The magnetism is caused because the magnetic field.

2. Magnetic force:

The magnetic field of an object can create a magnetic force on other objects with magnetic fields. That force is what we call magnetism.

When a magnetic field is applied to a moving electric charge, such as a moving proton or the electrical current in a wire, the force on the charge is called a Lorentz force.

3. Does magnetism affect plants growth?:

“A study was conducted to test the hypothesis that a magnetic field can affect plant growth and health. The study divided plants into three groups. The first group of plant seeds grew in a low magnetic field. The second group grew in a high magnetic field. The third group grew in the absence of a magnetic field, serving as a control group. Several growth parameters were measured, including the germination rate, plant height, and leaf size”

“In addition, the health status was measured by leaf color, spots, the stem curvature, and the death rate. Plant growth was observed continuously for four weeks. The results showed that magnetism had a significant positive effect on plant growth. Plant seeds under the influence of the magnetic field had a higher germination rate, and these plants grew taller, larger, and healthier than those in the control group. No adverse effects of magnetism on plant growth were noticed. However, the removal of the magnetic field weakened the plant stem, suggesting the role of magnetism in supplying plants with energy”

4. How do plants grow and change?

4.1. Plants need some primary needs to grow and change: They are water and sunlight.

4.2. The plants start off as a seed and then slowly develop into a seedling. During this moment the embryo help the seed to supply food.

4.3. Later the seed make the root grow. They need also carbon dioxide and oxygen to grow. After a long time, with good conditions for the plant, the stem and the leaves will appear.

1.      Objectives

a)      To see if plants can grow with magnetism and how affect?

b)      Know more about the plants and their growth.

c)      Have a good time with a funny project.

d)      Increase our knowledge.

e)      See if our plant changes using magnetism.

f)       See if our plant inclines to the magnet.

2.      Materials and Reactives

Materials

 

Pots (3)

Bean seeds(2)

Mandarin seed(1)

Magnets (2)

Ruler of about 30 cm. (1)

Reactives

Sunlight

Water

Soil

3.      Procedure

1.      Get all the materials.

2.      Place soil in the three pots.

3.      Plant the three seeds in the three pots.

4.      Place them in a wall because in a wall they will be protected of the cold.

5.      Put the magnets in front of two pots.

6.      They will have the same condition.

7.      Put them in the sun light and give them water.

8.      Wait about 5 days and see if they have growth.

9. Record data and take pictures of the project.

 4.      Observations and Results

1.                 The first three days the seeds were exactly the same.( see on the appendix the graph of the plants growth)

2.                 The fourth day the seed starts to get crease

3.                 In a week the seeds that have the magnets start to grow faster.

4.                 The bean seeds start to take out the roots but the mandarin deeds doesn't grow so much.

5.                 The climate on “EL RETIRO” affect the plant growth, so maybe that is another cause of  the plant has not grown much ( The three plants )

 5.      Conclusions

1. We could say that the magnets help the plant to grow up faster and healthier.

2. We could say that the magnets affects the plants growth for good.

3. We reach all our objectives.

4. We have fun with this project.

5. The plants can incline to the magnets because of the energy that produce it.

References:

1.      http://www.buzzle.com/articles/the-effect-of-magnetism-on-plant-growth.html

2.      http://www.selah.k12.wa.us/soar/sciproj2001/JakeH.html

3.      3.http://www.selah.k12.wa.us/SOAR/SciProj2