AQA GCSE Changes in energy, Specific Heat Capacity
Specific heat capacity is the amount of energy needed to raise the temperature of 1kg of a substance by 1°C.
The higher the value for specific heat capacity, the more energy needed to raise the temperature of the substance.
Practice Questions
1. Aluminium has a specific heat capacity of 900J/kg°C. Calculate the amount of energy needed to raise the temperature of a 2.5kg aluminium block from 20°C to 65°C.
2. Gold has a specific heat capacity of 130J/kg°C. Calculate the amount of energy needed to raise to the temperature of a 10g gold ring from 20°C to 600°C.
3. 10kJ of energy is transferred 1.5kg of material Y to raise its temperature by 20°C. Calculate the value of the specific heat capacity of Y.
4. Material G has a specific heat capacity of 650J/kg°C. 25kJ of energy is supplied to material 900g of material G to raise its temperature from 20°C. Calculate the final temperature of material G.
Absorption and Emission of EM Radiation
JJ Thomson and Plum pudding model
Ernest Rutherford and the Nuclear Model
Niels Bohr changing the Nuclear Model
Discovering the Proton and Neutron
Measuring radiation from radioactivity
Radiation types and properties
Random nature of radioactive decay
Radioactive contamination or irradiation
Hazards of contamination and irradiation
Studies on the effects of radiation on humans
Different half lives of radioactive isotopes
Nuclear Fission Chain Reaction
Writing nuclear fission equations