Unit 2 Summary
Dimensions and Units
I can …
- Explain the difference between dimensions and units
- Identify the seven fundamental dimensions
- Look up the dimensions for various physical quantities such as velocity, acceleration and force.
- Find the dimension for a given formula
- Perform a unit conversion
Dimensional Analysis
I can …
- Determine whether an equation is dimensionally feasible (consistent) or dimensionally infeasible (inconsistent)
- Perform a dimensional analysis to guess the formula for a physical system, given the inputs and the output.
Fermi Estimation
I can …
- Find the order of magnitude of a number
- Estimate the order of magnitude of a simple quantity
- Explain why 300 is a good choice to estimate a magnitude that is definitely bigger than 100 but less than 1000
- Make a Fermi Estimation of a complicated quantity by making a sequence of simpler estimations.