Which of the following statements is TRUE about particles that are being heated?
The particles will lose thermal energy
The particles will become closer together (thermal contraction)
Putting the soup in the refrigerator
Heating the soup up for one minute on the stove
Doubling the amount of soup in the bowl
Imagine you have a large pot water and a small pot of water. To start out, both pots of water have the same temperature, room temperature (20°C ).
The larger one would take longer to boil. Why?
Because there is more friction between the molecules in large pot of water
Because the larger one has more molecules to transfer the energy through
Because the average kinetic energy of the particles in the large pot is greater
How do particles lose thermal energy? Think back to what happened to the tennis balls and the food coloring lab.
Particles lose energy when they collide with higher energy particles.
Particles lose energy when they collide with lower energy particles.
Option 1
Option 2
Option 3
Option 4
Substance A has a greater average kinetic energy of its particles but the same amount of thermal energy as substance B.
Substance A has greater thermal energy but the same average kinetic energy of its particles compared to substance B.
The temperature of the substance A would increase.
The thermal energy of substance A would increase.
The molecules in substance B would transfer their coldness to the molecules in substance A.
colder than room temperature then it would warm up again