Question

which item has the most thermal energy?
a. 10 kg room - temperature water
b. 10 kg ice
c. 10 kg cold water
d. 5 kg ice

Explanation:

Thermal energy depends on mass and temperature. Among the options, all have water - in different states or temperatures. Ice is at a lower temperature than water. Also, more mass means more thermal energy. Option A has the highest mass and is at room - temperature (higher than cold water and ice), so it has the most thermal energy.

Answer:

A. 10 kg room - temperature water