Task: Question Answering
Input (English): Background Paragraph: No doubt you already have a good idea of what temperature is. You might say that it’s how warm or cool something feels. In physics, temperature is defined as the average kinetic energy of the particles of matter. When particles of matter move more quickly, they have more kinetic energy, so their temperature is higher. With a higher temperature, matter feels warmer. When particles move more slowly, they have less kinetic energy on average, so their temperature is lower. With a lower temperature, matter feels cooler. 
Story: David is trying to understand temperature and the science behind it. He took two objects, object A and object B, to his physics professor. Object A had higher temperature, but object B had lower temperature. His physics professor explained him why one object's temperature was higher while other object's temperature was lower. 
Question: Would particles move slower or faster in object B than in object A?
Output (English): slower.