AS/A Physics | Units And Dimensions | Lesson plan

# Schedule

July 17 - Jul 30 (2 weeks)

# Content

• History of the units system
• Features of a good unit system
• The FPS, CGS and MKS systems
• The SI system
• Basic and derived units
• Prefixes
• Inter system conversions
• Dimensional analysis

# Instructional objectives

Students should be able to:

• understand the importance of having a good unit system
• understand the qualities of a good unit system
• convert between different unit systems
• understand how to obtain derived units from basic units
• recollect all the basic units used in the SI system
• learn to use frifixes such as micro nano mega etc to scale the units
• Analyze the dimensions in an equation to look for mistakes
• Derive simple equations using dimensional analysis

# Teaching Process

• Make them come up with their own ways of defining units and identify the aspects of a good unit system
• Make them solve problems of converting between different unit systems
• Derive equations using dimensional analysis

# Activities

• experimentally determining constants of dimensional analysis