Fechar
Describe conduction in metals
Describe conduction in non-metals
Describe convection
What is infrared radiation?
What is meant by specific heat capacity?
What is meant by U-value?
Explain how evaporation causes cooling.
Explain why condensation happens on cold windows
What does conservation of energy mean?
What does high efficiency mean?
How is a Sankey diagram used to calculate efficiency?
If one kWh costs 12 p and 5 kWh have been used, how much will the total cost be?
Give an advantage and a disadvantage of generating electricity using nuclear power
Give an advantage and a disadvantage of generating electricity using hydroelectric power
Give an advantage and a disadvantage of generating electricity using solar power
Give an advantage and a disadvantage of generating electricity using biofuels
What is meant by the 'frequency of a wave'?
What is the unit of frequency?
When is the Doppler effect observed?
What is a reflected sound wave called?
Give two similarities between light and sound waves.
Give two differences between light and sound waves.
What does transverse mean?
What does longitudinal mean?
What does the red shift of light of distant galaxies provide evidence for?
What is Cosmic Microwave Background Radiation?
What is the importance of Cosmic Microwave Background Radiation (CMBR)?
If a source of wave moves towards you what happens to the speed, frequency and wavelength of the waves?
If a source of wave moves away from you what happens to the speed, frequency and wavelength of the waves?
What is the Big Bang theory?
What is the National Grid?
What does a step-up transformer do?
What does a step-down transformer do?
How do transformers increase the efficiency of power transmission?
What stages are needed to generate electricity in a fossil fuel or nuclear fuel power station?
What is the unit of Power?
What is the unit of specific heat capacity?
If energy is measured in kWh, what are units of Power and time measured in?
If energy is measured in J, what are units of Power and time measured in?
What is the unit for wavelength?
