Fossil Fuels Flashcards
(180 cards)
What is Energy?
Energy is the ability to do work and make changes. We can use this energy or store it.
Define Kinetic and Potential Energy
Kinetic energy is the energy generated by a moving object due to its motion. Like, running, throwing, talking…
Potential energy is the energy that can be stored and used in another time.
Give 5 examples of Potential Energy?
- Water behind a dam
- Fuel in a vehicle
- Student sitting on a chair
- Hammer above a nail
- A ball in hands of a boy
What are the 9 types of energy?
- Electrical energy
- kinetic energy
- Gravitational potential energy
- Elastic Potential energy
- Chemical Potential energy
- Nuclear energy
- heat energy
- sound energy
- light energy
Define electrical energy
Electrical energy is the energy created by the movement of electrons in a closed circuit. Like it is used to power light, devices and other battery appliances.
What is sound energy?
Energy given as sound waves when something vibrates. We can hear it as our ears detect the energy of the sound waves.
Light Energy
Energy given as light waves that allows the human eye to see it. It is produced by hot objects like the sun, lightbulbs, lasers.
Heat Energy/Thermal
Energy given due to the movement of atoms. Particles vibrating which make collision and produce heat.
Gravitational Potential Energy
Energy found/stored in an object due to its hight/distance away from ground. When it falls it release its GPE to other forms.
Chemical Potential Energy
Energy stored in the bonds of atoms. It is anything that can be burnt or undergo chemical reaction. Like fuel, food, and batteries,
Elastic Potential Energy
Energy stored in objects when you streched or squeezed it. When you stretch a spring you put energy into it. Then when it is released that energy is converted to something else.
Nuclear Energy
Energy produced by spliting atoms. (fission)
Nuclear energy is responsible for powering the sun, radioactivity and nuclear bombs.
What happens when atoms are moving faster?
Faster the atoms are moving the hotter the object becomes.
What is the difference between energy transfer and transformation?
Energy transfer is the movement of energy from one location to another. It is saying where the energy moved to. The form of the energy does not change.
Energy transformation is the change of energy form from one to another.
What are the 3 main types of fossil fuels?
- Coal
- Natural Gas
- Oil
What is fossil Fuels?
Fossil fuel is non-renewable resources that are fomed by anciet plants and organisms. Different types of fossil fuels are made depending on the time, pressure condition, organic matter, temperature.
What do fossil fuels contain?
They contain carbon and hydrogen which can be burnt for energy
How are coal formed?
Coal is made out of ancient plants/ferns/trees which was hardened due to time and pressure conditions. So, now you can find them between sedimentary rocks deposits.
How is Oil formed?
Oil is made out of ancient organisms like zoo planktons which are burried underground. Oil is found as solid materials between sedimentary rocks. Then it is heated to form oil for gasoline.
How is Natural gas formed?
Natural gas is the cleanest fossil fuel. It is also made out of small organisms like zoo planktons and algae. However, due to more presure condition and heat instead of forming the oil it becomes gaseous form.
What are fossil fuel used for?
- Petrol
- Electricity
- Heat our homes
- manufacturing
How are fossil fuel extracted?
Minning and Drilling
Where is oil largely found in?
Below oceans floor as many tiny marine animals lives there,
Why is using fossil fuel bad?
Burning fossil fuel release large amount of green house gases especially co2 into the atmosphere. This increase greenhouse effect=global warming=climate change.