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Transcript of ENERGY
How many forms of energy are there?
Forms of energy
How do we measure the energy in food?
How are sources of energy classified?
: Is the ability of an object to move, heat up or produce light.
: Is the energy that produces movement.
: The energy of a body or a system with respect to the motion of the body.
: The energy of a body or a system with respect to the position of the body.
: This energy is stored in some substances, batteries,...
How can we protect our planet?
What is energy?
This energy is stored in some substances, batteries,...
This is energy in the form of electricity
This is energy in form of heat
This is the energy in the form of light
This type of energy is stored in the atomic structure of all matter
What happens to energy when it's used?
Aeroplanes and cars transform the chemical energy in fuel and petrol into kinetic and thermal energy.
Fans and electric drills transform electrical energy into kinetic and thermal energy.
Solar panels transform light energy from the sun into electrical energy during the day.
Energy never dissapears. It can be transformed from one type of energy into another, but it doesn't dissapear completly.
The chemical energy stored in food and drink is measured in
. The more calories in a food, more energy it contains.
What are the three Rs?
The energy of a body or a system with respect to the motion of the body or of the particles in the system.
The energy of a body or a system with respect to the position of the body or arrangement of the particles of the system.
How to create a thermometer
is the introduction of contaminants into the natural environment that cause adverse change.
is a rain or any other form of precipitation that is unusually acidic.
It can have harmful effects on plants, aquatic animals and infrastructure. Acid rain is caused by emissions of sulphur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids.
Energy that produces movement. It's the energy that enables people and things to move, go faster or change direction.
Those sources are always available or are replaced naturally.
Is a resource that does not renew by itself.
: This is energy in the form of electricity.
: This is energy in form of heat.
: This is the energy in the form of light.
: This type of energy is stored in the atomic structure of all matter.
: A unit of energy. It is often used to measure the amount of energy that food provides.
: Those sources are always available or are replaced naturally.
: Is a source that does not renew by itself and is limited.
: Substances released into environment that damage or kill living things.
: rain that contains pollutants. It damages plants and buildings, and pollutes surface water like rivers.
How many calories we need daily?
Political World Map
The world in carbon dioxide emissions
The year 2014 now ranks as the warmest on record since 1880.
We know enough about climate change -
It's time for decisions now!
Have you taken your temperature lately?
The Earth has, and it’s getting hot in here.