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Modern Physics Atomic Structure Exercises

Lithium Atom Label the parts of the atom marked. a) b) c) d) Atomic Number Atomic number is the number of protons in a nucleus. The mass number is the number of protons plus the number of neutrons. If the atom is neutral the number of protons equals the number of...

Wave Frequency and Period Calculations

Complete the following table to determine the frequency or period” PeriodFrequency10 s1250 s24 hours9.2 x 106 Hz5.9 x 1018 Hz Use the wave equation to find the frequency of the following electromagnetic radiation.N.B. Electromagenetic radiation travels at 3 x...

Waves and Motion

There are two major descriptions of wave motion. They are: Longitudinal waves and Transverse waves Light travels as a transverse wave, whereas sound travels in a longitudinal wave. The following tables illustrate the differences. Longitudinal Wave A vibrates in the...

Physics Heat Transfer

Conduction:The transfer of heat from one part of a solid to another which is caused by particle collisionsbetween particles in the solid. Convection:The transfer of heat energy from one place to another by the transfer of material e.g. rising andfalling water....

Heat, Changes of State Experiment

AIMTo determine some of the phase changes for water. METHODUse a Bunsen burner to heat approximately 100 g of ice which is placed in a beaker. Record the temperature at regular intervals, e.g. every 30 seconds. N.B. Once the water is melted keep it well stirred....