1-100 year 10 questions i didnt get correctly Flashcards
What is dissipated energy?
Energy lost to the surroundings/environment
what is the equation for efficiency?
efficiency = energy transferred usefully/total energy input
What is infared light?
Part of the electromagentic spectrum that has a wave length longer than visible light
Name two types of thermal insulation in the home?
Double glazing, loft insulation
What is specific heat capacity measured in?
J/Kg degrees celsius
What is the equation linking energy mass SHC and temp change?
energy = mass x SHC x temp change
The advantages of using oil and coal as an energy source?
reliable
What is carbon capture and storage?
capturing carbon before its emitted and store underground
Advantage of biofuels?
store underground, reknewable
Advantage of nuclear power?
energy dense, doesnt produce polluting gas
Disadvantage of nuclear power?
Toxic waste produced, radioactive waste hard to store
Disadvantage of geothermal energy?
Only available in specific areas
Examples of transverse waves?
Light and s waves
What is an ionizing wave
Ionizing radiation is any type of particle or electromagnetic wave that carries enough energy to ionize or remove electrons from an atom
What is frequency measured in
Hz hurtz
What is the equation for wave frequency
wavelength/time period
What can infared light be used for
tv remotes and heating
What can visible light be used for
vision and optical cables
What can gamma rays be used for
sterilzation and radiotherapy (medical treatments)