Non renewable energy sources
Renewable energy sources
Energy Efficiency and Thermodynamics
Mining
The experiment
100
Non-renewable energy source used in nuclear reactors
Uranium
100
Energy source that uses the sun
Solar energy
100
What is the first law of thermodynamics?
Energy cannot be created or destroyed, only transformed
100
the process of mining from the surface of the land is called?
Surface mining
100
What renewable energy resource did the cheezel represent?
Biomass
200
The term for the theorised point in time when the maximum rate of gloabl oil production will occur after which oil production will decline
Peak oil
200
How is wind energy captured?
Through wind turbines
200
If we divide useful energy output by total energy input what answer will we get?
The energy efficient
200
What are tailings?
Waste products from mining
200
What was the aim of our experiment?
To determine the amount of energy in three different alcohols and one type of snack food.
300
This resource is abbreviated to CSG
Coal seam gas
300
Type of energy derived from decomposed organic materials
Biomass
300
The conversion of chemical energy in fuels to electrical energy involves this process
Combustion
300
Name the process that involves the injection of fluids under high pressure into low permeability rock to induce fractures to increase the rock's permeability.
Hydraulic Fracking
300
Give a higher and lower grade energy from the experiment
Heat transferred to the can and heat transferred to the water
400
Potential energy that arises from the relative positions of atoms and their electrons in the molecules that make up a substance
Chemical energy
400
Describe the energy transformation in a hydroelectric power scheme ( 4)
gravitational potential energy -> kinetic energy (water) -> mechanical energy (generator) -> electrical energy
400
What unit of measurment is power measured in?
Watts
400
What is the difference between Restoration and Rehabilitation?
Rehabilitation is making the land sustainable in the long term Rehabilitation is returning the land to its original state.
400
How could you tell if the alcohol was not completely combusted?
Soot on the bottom on the can
500
What is the name given to the oil extracted before it is heated and refined into different petroleum products?
Crude oil
500
Wave energy utilises the motion of water within a chamber to drive air through a turbine and generate electricity. What is this type of converter called?
Oscillating water column
500
A solar panel converts solar energy into electrical energy. If the panel absorbs 15 000J of solar energy and is 23% efficient, what is the useful energy output of the solar panel?
Useful energy output= Efficiency x total energy input
= .23 x 15000
= 3450J
500
Define Amelioration
Making something better or improving it.
500
Describe the type of reaction and the energy transformation that we saw
A combustion reaction where the stored chemical energy in the alcohols is transformed into heat energy