Review the units of mass measurement in the international system and include the standard as the kilogram. Discuss the need to be aware of the units prefix, as they can be deceptive. Introduce the standard unit of length measurement and relate it to the wave length of krypton light. Indicate time in seconds as the standard unit and volume in cubic meters as the standard. Discuss Newtons as the unit of force and the joule as the unit of energy.
Present Einsteins' formula relating mass to energy and present a problem to determine the mass of uranium remaining when 2 Kg undergoes fission,