instruction:
In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.
question:
Question: Between a marble and a cannon ball, both travelling at the same speed, the object with the least momentum would be 
 Answer: the marble?
answer:
The more mass a moving object has or the faster its moving, the greater its momentum.


question:
Question: An increase in food will likely lead to _____ lifespans. 
 Answer: longer
answer:
New farm machines were invented. They increased the amount of food that could be produced. With more food, people were healthier and could live longer.


question:
Question: Joan is examining an electron 100nm from the nucleus and an electron 50nm from the nucleus. Which has more energy? 
 Answer: the 100nm electron
answer:

Electrons at higher energy levels, which are farther from the nucleus, have more energy.