Question

Student A claims that a person will be able to squeeze a clothespin more times in a minute if the person exercises first. Student suggests that exercising produces a faster pulse rate, which indicates that the blood is getting to the muscles faster. Student B claims that a person will be able to squeeze the clothespin more times in a minute if the person does not exercise first. Student B suggests that exercise takes energy away from the muscles, and a person who has been resting will have more energy. Which of the two students do you agree with? How could you find out for sure which claim is correct?

Answer 1

Student A suggests exercising before squeezing a clothespin will increase pulse rate and Student B suggests resting before squeezing the clothespin will provide more energy. A scientific experiment can be conducted to determine which claim is correct.

Step-by-step explanation:

The claim made by both students have some validity, but they focus on different factors. Student A suggests that exercising before squeezing a clothespin will increase the pulse rate, which indicates faster blood flow to the muscles. This can help with the endurance of the muscles and allow for more squeezing repetitions. On the other hand, Student B suggests that exercising takes energy away from the muscles, and a person who has been resting will have more energy. Resting before squeezing the clothespin can provide the muscles with more energy and potentially allow for more repetitions.

In order to determine which claim is correct, a scientific experiment can be conducted. Two groups of individuals can be tested, one group that exercises before squeezing the clothespin and another group that rests before squeezing the clothespin. The number of times each person can squeeze the clothespin in a minute can be recorded and compared between the two groups. This experiment will help determine the impact of exercise on muscle endurance and energy levels.

Answer 2

Student B is correct. Exercise can deplete muscle energy and lead to reduced performance. To confirm, an experiment can be conducted by comparing the performance of individuals who exercised before the task and those who didn't exercise.

Step-by-step explanation:

I agree with Student B's claim that a person will be able to squeeze the clothespin more times in a minute if the person does not exercise first. When we exercise, our muscles require energy, which is supplied by ATP produced through different energy systems. The initial energy system, creatine phosphate, can supply energy rapidly but only for a short duration. The second energy system, glycogen, takes longer to produce ATP but provides energy for a longer duration. However, exercise can deplete glycogen levels and create fatigue in the muscles, leading to reduced performance.

To find out for sure which claim is correct, we could experiment. We could gather a group of individuals and divide them into two groups- one group exercises before the test and the other group does not exercise. We would then measure the number of times each participant can squeeze a clothespin in a minute. By comparing the results, we can determine if exercise affects performance positively or negatively.