Hypothesis
The hypothesis of this experiment is resting beforehand will increase the rate of clothespin squeezing.
Materials and Methods
Materials
20 Clothespins (1 for each participant)
Stopwatch/Timer
20 people
Procedure
For this lab, the student gathered 20 people and split them into pairs. In this experiment 10 people are going to exercise, and 10 people are going to rest. The student gave each person a clothespin. In each pair, Student 1 is going to be exercising before squeezing a clothespin and Student 2 is going to be resting before squeezing the clothespin (independent variable). First, Student 1 began doing 15 jumping jacks and 10 pushups while Student 2 rested for 1 minute. When Student 1 completed the jumping jacks
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The data does not support the students hypothesis because it was incorrect. A possible explanation for these results is when you exercise your blood starts flowing throughout your body which causes the muscles to move faster and the amount of clothespin squeezes to increase. When a person exercises the blood flow of the person increases. When the blood flow increases, the person's level of oxygen also increases and then, when oxygen is delivered to the muscles a process called anaerobic respiration occurs. When you rest, not a large amount of oxygen is getting to your muscles which leads to the increase of lactic acid, and the lactic acid causes your muscles to fatigue. When muscle fatigue occurs, you are not able to squeeze the clothespin as many times. This data and explanation prove that exercising beforehand will increase the rate of clothespin …show more content…
One possible source of error is the test subjects might have not accurately counted the number of times the clothespin was squeezed. Also, the test subjects might have not fully opened or closed the clothespin which effects the times it was squeezed. It is very important to control the variables when investigating human subjects because all humans are different. Not all humans bodies are the same and they don’t respond or react the same way to different things. Three additional variables that may have influenced the outcome of the experiment is some test subjects worked harder than others and took it more seriously, which causes some subjects to be more tired. Another variable is how durable the clothespin is. If the clothespin is deformed before or during the experiment, it can affect how many times the clothespin is squeezed because it is not working correctly. Lastly, one more variable is the motivation and wanting to participate to squeeze the clothespin as many times as possible. If the person has more motivation, it is most likely the person will squeeze the clothespin more
PAF 301 Written Performance Task 1. The two fitness tests I’m most proud of is my full sit ups in a minute and beep test results. The exercises I did in my three week fitness program to help me accomplish my 55 sit ups in a minute included a variety of core exercises. I’ve done side planks, sit ups, planks, russian twists, hollow holds, running mans, v-snaps, mountain climbers, plank jacks, wood chops and tuck extends.
If no, t my results could possibly be an out lier if we were to graph and look at the class data as a whole. One factor that could effect results would be the environment. Meaning the other people (students) around you during your trials. If one student was walking extremely fast in comparison to your normal pace you might start to walk faster subconsciously and be influenced by them. Another factor that could influence the results is not throwing the ball properly in condition four and just passing it to the other hand instead.
I had Denim stand with his right foot in front of his left with both arms down by his side. I then asked if he had any medical conditions that would prevent him from completing the test, which he replied, “No, I do not.” I then explained and demonstrated the test while Denim was in the starting position. During my demonstrating, Denim fell out of the starting positon once. After I completed the demonstrating, I advised him that he could begin.
1. Compare the reaction times for voluntary vs. involuntary activation of the quadriceps muscle. What might account for the observed differences in reaction times? Outline what has to occur in the body for each reaction to occur. Refer to your drawing from Step 23.
Bari 1 Shawn Bari Period 3 Mr. Miko Science Fair Research Paper How do ankle weights affect the time of a 200 foot dash? Weight gain has been a major issue in American society today, especially in the newer generation.
The variable for each experiment will be the brand of toilet paper otherwise, for each experiment everything else will be
VERBAL IMAGERY ABSTRACT The present experiment was conducted to study the effect of word length and presence or absence of visual cues on memory. It was conducted to see whether the presence or absence of the visual cue leads to better remembrance of the words presented to the participant. Also the length of the words was taken into consideration to test the memory for the words shown to the participants. This experiment was conducted with the sample of 82 participants wherein they were presented with 4 tasks.
. In Behavioral Study of Obedience, Stanley Milgram revealed two unexpected findings he discovered from his experiment. The first finding was that humans clearly had a natural tendency to willingly or unwillingly obey to authorities.
In my opinion, a debate over the ethicalness of this experiment is unnecessary. The Stanford Prison Experiment was undoubtedly unethical, due to the mortification and the psychological distress subjected on the participants. Also, there’s no debate over the major flaws within the experiment, the main flaw being Philip Zimbardo. Zimbardo was a participant in this own experiment, taking the role of the warden of the “prison”, therefore couldn’t be an impartial leader. Due to his active participation in the experiment, Zimbardo started to lose his perception of reality and was overtook by a facade, like the other participants, and couldn’t recognize the unethical ways of the experiment.
Treatment Plan Mrs. Wong’s therapy begins every morning when she wakes up. First, we will assist her in taking a shower including, transfers from the bed to the bathroom, and practice reaching for products in the shower. This is an important part of the intervention plan because it is a required skill Mrs. Wong will need if she wishes to live independently. Afterwards, we will assist her in dressing.
A fitness component that is immensely important in weightlifting is the strength of an individual. It can be measured by looking at how heavy one individual can carry which then will help the committee to eliminate and decide which athletes are applicable for this specific sport. We are helping the committee decide who has the ability to use their muscles to carry heavy amounts of weight because strength is an important factor in weightlifting. The oxygen capacity of an individual is an important factor of strength because the more oxygen you inhale in your lungs, the stronger your muscles become. “Cellular respiration is the process in which your muscles use oxygen to produce ATP energy.
Caught in the Action For my behavior modification project, I chose to eliminate the number of times that I would bite my nails. This project was taken over the course of eight continuous days. For the first four days, I tracked and recorded the number of times I was biting my nails during a half-hour time span and what situational factors and stimuli caused me to do this. Following the first four days, the next four days I chose a positive reinforcer that would help me from biting my nails.
There were thirty semiprofessional male soccer players that had to make 6 penalty shots without pressure, then 6 with pressure. The pressure that was put on them was a large audience. They were also placed into teams and were told that the winning team would receive rewards for their performance. Half of the participants squeezed the ball with their left hand while the others did with their right. Experiment 2 was to add on to the results of the first experiment.
Even though the velocity of the limb extension part of the swing phase was still defective in both groups at week 10 after SCI, but it was gradually improved since week 5 in trained group. In trained group, the averaged velocity of the whole swing phase returned to similar value to the baseline since week 3 after SCI and it completely gained back at week 10 after SCI. Moreover, the enhancement of swing phase component relationship of treadmill training was shown from this study. The relationship between a parameter or dependent variable which was swing phase duration and its constituents or independent variables which were swing phase height, length, and velocity was explored by the polynomial multiple regressions in trained, untrained and normal rats at week 10 after SCI. The correlation of the normal rats was equivalent to 0.93 which showed the reliability to predict the swing duration by the swing phase height, length, and velocity.