Practice Questions
1.Explain what is meant by a change of state being a physical change.
A physical change is a reverisble change where the material regains its original properties.
2. In the winter liquid water forms on the surface of windows. State the name of the process that is responsible for the liquid water forming
Condensation
3. 1500g of liquid propane is allowed to evaporate. State the mass in kg for the total propane vapours formed.
1.5kg
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
Drawing ray diagrams for a concave lens
Drawing Ray Diagram to produce a virtual image for a convex lens
Drawing ray diagram to produce a real image for a convex lens.
Specular and Diffuse Reflection
Seeing Coloured Objects Part 2
Viewing objects through coloured filters
Transparent, Translucent and Opaque