Understanding the concept of temperature.
Understanding potential difference.
How to use Ohm's law to relate potential difference and current flow.
Understanding the different characteristics of waves.
The different types of nuclear reactions.
How to use and convert scientific units.
Understanding the different parts of the electromagnetic spectrum.
Understanding the differences between rotations and revolutions.
Understanding the differences between speed and instantaneous speed.
Understanding the differences between vectors and scalar quantities.
Recognizing the differences between centripetal and centrifugal force.