Question

From his observations of cannon drilling, Count Rumford concluded that heat could NOT be a form of

A. kinetic energy.
B. potential energy.
C. matter.
D. radiation

Answer 1

Matter is your answer.

Answer 2

From his observations of cannon drilling, Count Rumford concluded that heat could NOT be a form of C. matter.
Although all matter contains heat energy, heat itself is not a form of matter, but just one of its integral parts.