I need help ty; Thermal Energy Unit Test Science 6B
here's question 1 it has a total of 9 questions
In which case would the kinetic energy of particles be increasing? (1 point)
1. Metal is cooled at 1,300°C.
2. Metal is at room temperature, 37°C.
3. Metal is heated from room temperature to 200°C.
4. Metal is melted at 1,300°C.
Can I get the answers please???
I really really need them
To determine in which case the kinetic energy of particles would be increasing, we need to understand the relationship between the temperature and the kinetic energy of particles.
Temperature is a measure of the average kinetic energy of the particles in a substance. When the temperature increases, it means that the average kinetic energy of the particles is also increasing.
Now, let's apply this knowledge to each case:
1. Metal is cooled at 1,300°C: In this case, the temperature is decreasing, which implies that the average kinetic energy of the particles is decreasing. Therefore, the kinetic energy of particles would not be increasing in this case.
2. Metal is at room temperature, 37°C: In this case, the metal is already at a certain temperature, and there is no mention of any changes in temperature. Therefore, the kinetic energy of particles would not be changing or increasing in this case.
3. Metal is heated from room temperature to 200°C: In this case, the temperature is increasing, which implies that the average kinetic energy of the particles is increasing as well. Therefore, the kinetic energy of particles would be increasing in this case.
4. Metal is melted at 1,300°C: Melting refers to the phase change from a solid to a liquid state. During this process, the temperature remains constant even though heat is being added. Therefore, the kinetic energy of particles would not be increasing during melting.
Based on the above analysis, the correct answer is option 3: Metal is heated from room temperature to 200°C.