easy-watermark domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home/u223937191/domains/scienceworksheets.co.uk/public_html/wp-includes/functions.php on line 6170Practice Questions
1.Explain what is meant by a change of state being a physical change.Â
A physical change is a reverisble change where the material regains its original properties.Â
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