Practice Questions
1. State the definition of weight
Weight is the force acting on an object due to gravity
2. What is meant by the term calibration
Calibration is an an instrument is checked against a reference to ensure the results will be accurate.
3. State the relationship between mass and weight
Mass and weight are directly proportional
4. State the meaning of the term centre of mass
Centre of mass is where the weight of an object may be considered to act at a single point.
5. What does a spring balance measure?
Weight in Newtons
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