TASK DEFINITION: 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.
PROBLEM: Question: If Milo starts rubbing two surfaces together quickly and then decrease the speed, what happens to the amount of energy produced?
Answer: decreases

SOLUTION: Friction causes the molecules on rubbing surfaces to move faster, so they have more energy. This gives them a higher temperature, and they feel warmer.

PROBLEM: Question: A moving ball that is only lightly resisted by fluid friction is likely to be quite
Answer: small

SOLUTION: The faster or larger a moving object is, the greater is the fluid friction resisting its motion.

PROBLEM: Question: Bob moves a table across the floor. After, he moves a smaller chair. Which piece of furniture had more friction?
Answer: table.

SOLUTION:
Heavier objects also have more friction because they press together with greater force.