Answers to GCSE Electric Fields and Objects
Practice Questions
1. Describe how an electric field is formed
An electric field is formed around a charged object such as a sphere
2. Explain what happens when a negatively charged object is placed into an electric field being generated by a positively charged object
Both objects are charged, so they both have electric fields surrounding them.
If a negatively charged object is placed into the electric field of a positively charged object, a force of attraction will occur between the two objects.
3. Explain what happens when a positively charged object is placed into an electric field being generated by a positively charged object
Both objects are charged, so they both have electric fields surrounding them.
If a positively charged object is placed into the electric field of a positively charged object, a force of repulsion will occur between the two objects.
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