miércoles, 15 de junio de 2016
viernes, 10 de junio de 2016
energy transformation
June 10th
What is energy transformation?
The conservation of energy principle states that energy can neither be destroyed nor created. Instead, energy just transforms from one form into another. So what exactly is energy transformation? Well, as you might guess, energy transformation is defined as the process of changing energy from one form to another.
What is energy transformation?
The conservation of energy principle states that energy can neither be destroyed nor created. Instead, energy just transforms from one form into another. So what exactly is energy transformation? Well, as you might guess, energy transformation is defined as the process of changing energy from one form to another.
Examples of energy transformation
There are so many different kinds of energy that can transform from one form to another. There is energy called chemical energy, heat energy ,electrical energy, fission nuclear energy, mechanical energy.
What are the pros and cons of chemical and electrical energy? (Consequence)
videos:
https://youtu.be/y_omJiYB2gk
Sources:
https://youtu.be/y_omJiYB2gk
Sources:
http://study.com/
https://www.google.com.pe/search?q=energy+transformation
viernes, 3 de junio de 2016
What are some types of energy?
Mechanical energy
Mechanical energy is often confused with Kinetic and Potential Energy. We will try to make it very easy to understand and know the difference. Before that, we need to understand the word ‘Work’.
Mechanical energy is the sum of kinetic and potential energy in an object that is used to do work. In other words, it is energy in an object due to its motion or position, or both. In the 'open door' example above, I possess potential chemical energy
Electrical energy
We generate electrical energy whey we succeed in causing these electrons to move from one atom to the other, with the use of magnetic forces.
Chemical energy
Chemical Energy is energy stored in the bonds of chemical compounds (atoms and molecules). It is released in a chemical reaction, often producing heat as a by-product (exothermic reaction). Batteries, biomass, petroleum, natural gas, and coal are examples of stored chemical energy.
source: retrive from june 3rd,2016 from http://www.eschooltoday.com/
viernes, 20 de mayo de 2016
force and work
What is force?
In physics, force is a push or pull on an object. A force can cause an object to accelerate, slow down, remain in place, or change shape.
How to Measure Force
The unit of measure for force is the newton which is abbreviated as "N". One newton is the force needed to accelerate one gram of mass by one centimeter per second squared. Other units of force include the dyne and the pound-force.
What is work?
We often use the word "work" in our everyday lives. For example, we would say that getting good grades in school takes a lot of hard "work". In physics, the term "work" has a specific meaning. Work, in physics, occurs when a force acts on an object to move it some distance from the start point (also called displacement). Work is calculated as the force times the distance. The following equation is used to describe work:
In physics, force is a push or pull on an object. A force can cause an object to accelerate, slow down, remain in place, or change shape.
How to Measure Force
The unit of measure for force is the newton which is abbreviated as "N". One newton is the force needed to accelerate one gram of mass by one centimeter per second squared. Other units of force include the dyne and the pound-force.
What is work?
We often use the word "work" in our everyday lives. For example, we would say that getting good grades in school takes a lot of hard "work". In physics, the term "work" has a specific meaning. Work, in physics, occurs when a force acts on an object to move it some distance from the start point (also called displacement). Work is calculated as the force times the distance. The following equation is used to describe work:
Gravity
What is gravity?
Gravity is the mysterious force that makes everything fall down towards the Earth. But what is it? It turns out that all objects have gravity. It's just that some objects, like the Earth and the Sun, have a lot more gravity than others. How much gravity an object has depends on how big it is. To be specific, how much mass it has. It also depends on how close you are to the object. The closer you are, the stronger the gravity.
Why is gravity important?
Gravity is very important to our everyday lives. Without Earth's gravity we would fly right off it. We'd all have to be strapped down. If you kicked a ball, it would fly off forever. While it might be fun to try for a few minutes, we certainly couldn't live without gravity.
Gravity is the mysterious force that makes everything fall down towards the Earth. But what is it? It turns out that all objects have gravity. It's just that some objects, like the Earth and the Sun, have a lot more gravity than others. How much gravity an object has depends on how big it is. To be specific, how much mass it has. It also depends on how close you are to the object. The closer you are, the stronger the gravity.
Why is gravity important?
Gravity is very important to our everyday lives. Without Earth's gravity we would fly right off it. We'd all have to be strapped down. If you kicked a ball, it would fly off forever. While it might be fun to try for a few minutes, we certainly couldn't live without gravity.
source:http://www.ducksters.com/
energy
What is Energy?
The simplest definition of energy is "the ability to do work". Energy is how things change and move. It's everywhere around us and takes all sorts of forms. It takes energy to cook food, to drive to school, and to jump in the air.
Different forms of Energy
Energy can take a number of different forms. Here are some examples:
Chemical - Chemical energy comes from atoms and molecules and how they interact.
Electrical - Electrical energy is generated by the movement of electrons.
Gravitational - Large objects such as the Earth and the Sun create gravity and gravitational energy. Heat - Heat energy is also called thermal energy. It comes from molecules of different temperatures interacting.
Light - Light is called radiant energy.
The simplest definition of energy is "the ability to do work". Energy is how things change and move. It's everywhere around us and takes all sorts of forms. It takes energy to cook food, to drive to school, and to jump in the air.
Different forms of Energy
Energy can take a number of different forms. Here are some examples:
Chemical - Chemical energy comes from atoms and molecules and how they interact.
Electrical - Electrical energy is generated by the movement of electrons.
Gravitational - Large objects such as the Earth and the Sun create gravity and gravitational energy. Heat - Heat energy is also called thermal energy. It comes from molecules of different temperatures interacting.Light - Light is called radiant energy.
source:http://www.ducksters.com/
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