Energy Flashcards
Unit of energy
Joule
Energy
Is the ability to do work
Potential energy
Stored energy waiting to do work
Such as Cole spring elastic band
Kinetic energy
The energy that moving thing have
Heat Energy
Heat energy because it to move
Hot air to an air ballon to rise ,hate in a steam engine moves trains
Light energy
Light energy can move in crooked radiometer r solar powered calculator, plants use light to make food
Sound energy
If you head near a loudspeaker you can feel the air that is being moved by sound energy
Electrical energy
This energy can make things like ex tractor fans to move.it is the flow of electrons around the a circuit
Chemical energy
This type of rnegy
Nuclear energy
This energy is stored in the nucleus of atoms ,the enemy that comes off the Sun
Law of conservation energy
Energy cannot be created or destroyed it can only be changed or converted from one to the other
Circuits
A circuit is made up of a battery, some wires and a different types of equipment and can be used to observer energy conversions
Hydroelectric
Dam holds back water and then let’s it drop onto a wheel to turn the generates
Wind energy
Wind can turn wind mills which generate electricity
Wave energy
The movement of large floats by the energy in the wave
Biomass
Some plants produce oils and others can produce fuels such as Alcohol and methane gas
Geothermal
The temperature underground increases with depth this heat can be used th heat water in some circumstances
Advantages of Renewable energy
Does not run out
Does not cause pollution
Fairly Safe to use
Disadvantages of renewable
Expensive to set up
More research needs to be done into how to make them good source of energy
Non renewable
Non renewable energy connotation be replaced and run out
Fossil fuels
Oil ,coal, gas are all example of fossil fuels
Formed over million years ago from Bodies of dead plants and animals
Once burned are gone
Disadvantage of fossil fuel
They cause pollution and damage to the atmosphere
The sun as a source of all our energy
The sun heats the ocean and air creating wind and solar currents
Allows plants to make food
Nuclear energy
When the nucleus of an atom is slit large amounts of energy are released from it
Advantages of nuclear energy
. In medicine radiation kills cancer cells
. Radiation can be used to sterilise food
. Radiation can produce electricity
. It will not run out like fossil fuels
Disadvantages of nuclear energy
The waste produce of nuclear are radioactive and are harmful to humans
The waste products last in the environment for a very long
If a nuclear energy may get out of control a huge explosion may happen
