14Types of Energy Heat Chemical Light Gravitational Sound Elastic/strain Kinetic NuclearElectric
15Types of Energy Heat Chemical Light Gravitational Sound Elastic/strain Kinetic NuclearElectricStored/potential
16The Law of Conservation of Energy Energy can be changed (transformed) from one type to another, but it can never be made or destroyed.
17This means that the total amount of energy in the Universe stays the same!
18Energy Flow diagramsWe can write energy flow diagrams to show the energy changes that occur in a given situation.For example, when a car brakes, its kinetic energy is transformed into heat energy in the brakes.Kinetic heat
19Today’s lesson Measuring the energy content of two fuels You will move to the next experiment at the appropriate signal.
21Energy Content of two fuels Initial mass (g)Final mass (g)Mass of fuel used (g)Initial temp of water (°C)Final temp of water (°C)Temp rise of water (°C)Energy released (J)Energy released per gram of fuel (J/g)WaxEthanolVolume of water (cm3) x 4.2 x temp riseEnergy ÷ massThen write three sentences saying what you have discovered, and suggesting two ways the experiment could be improved.