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.

[EX Q]: Question: Jerry weighs 200 pounds. Polly weighs 120 pounds. Who has more inertia? 
 Answer: Jerry
[EX A]: Objects with greater mass have greater inertia.

[EX Q]: Question: If Mona is building a machine to help her vacuum her floor and she decreases the amount of force the engine inside the vacuum, what happens to the vacuum ability to make work easier? 
 Answer: decreases
[EX A]: Machines make work easier by increasing the amount of force that is applied, increasing the distance over which the force is applied, or changing the direction in which the force is applied.

[EX Q]: Question: Would Jim's solution become more or less acidic if he increased the concentration of hydrogen atoms in it? 
 Answer: more acidic
[EX A]:
With a higher the concentration of hydrogen ions, a solution is more acidic and has a lower pH.