What two errors in the data will result if you raise the temperature of the melting point apparatus too quickly?

The two errors in the data resulting from an experiment where the temperature is raised too quickly are: First, the melting point temperature may not be recorded correctly since it cannot be monitored closely if the heat supplied is too high. 

Iwould you figure it out but you don't have a picture or in your question as to what the physical property you're looking for is