Magnetic fields can exert forces on moving charges.  

The Curie temperature is the temperature below which a material becomes ferromagnetic.  

The refraction of light causes mirages due to frequency. 

Energy can be destroyed but not created.

Ohm’s Law applies to all materials.  

The Joule is a derived unit of work.

Density is calculated as mass divided by volume.

Instruments are used to extend our ability to measure and learn about our environment.

One kilogram equals 1,000 grams.

The frequency of visible light is inversely proportional to its wavelength.