The speed of sound increases as temperature decreases in air.  

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

Please match the following concepts about antimicrobial resistance

Alternating current (AC) is used in homes because it is safer than direct current (DC).  

Significant figures are used to express the precision of measurements.

A hypothesis is a proven scientific fact.

Water expands when heated at all temperatures.

Objects in free fall accelerate at different rates independent of their mass.

The Bohr model predicts that electrons occupy discrete orbits.  

Magnetic fields can exert forces on moving charges.