Then test the ball by bouncing it on the table; observe its properties and record the results. After determining which mixture has the most desirable properties, make the same mixture seven times. Place three balls in cold water at varying times, three balls in hot water at varying times, and one ball is for the control group. Take the balls out of the water, bounce them, observe their properties and record the results. Results Table 2: Observations of the ball formed Table 3: Observations of
Those who practice them are very fast because the key is to be fast and good reflexes. In addition, not everyone has good experiences at this game, especially in racquetball because beginners think it will be difficult to learn, or maybe they are afraid of getting hit in the eye. Also, playing those sports can increase cardiovascular health, endurance and muscular strength. Even though people assume that racquetball and squash are almost same, in reality, there are very differences. For scoring in squash and racquetball, all you need to do is hit a shot or serve that your opponent can’t reach before the ball bounces twice.
Part Two: This part of the lab was to hit Mr. Bill with the projectile as he was sitting on the floor. First, the distance between the projectile launcher and Mr. Bill (3.5m) was given by Mr. Neenan. Next, the given velocity from part one (6.27 m/s) was used to solve for the angle needed to hit Mr. Bill. Once the angle was found, the projectile launcher was placed on the ground 3.5m away from Mr. Bill and the projectile was fired. Part Three: This part of the lab was to hit Mr. Bill with the projectile while he was elevated off the ground.
Description: In these series of experiments the apparatus we used was a spring gun that for the first experiment shot a steel ball freely which eventually struck the floor. For the second and third experiments the gun fired the steel ball into a pendulum. To measure the velocity of the steel ball, when it was launched freely, carbon paper and a 2-meter ruler were used to determine the distance it travelled and then kinematics were used to calculate the balls initial velocity. When the steel ball was launched into the pendulum the laws of conservation of energy and momentum were utilized to determine the balls initial velocity. Theory: 3 Kinematic Measurement of Speed In this experiment the steel ball was moving in two dimensions both horizontally and vertically.
Because the length of a pendulum L, and the square of the period of the pendulum T2 are directly proportional, we were able to determine g by calculating the slope of the T2 vs L graph. From our calculations, this value turned out to be 10.3m/s2, while the accepted value for the acceleration is 9.8m/s2. Percentage Difference = 10.3−9.8 9.8 = 5.10 % There are a few reasons for the small error in our estimation: 1. There was some uncertainty in measuring the length of the pendulum L.
Video games can help with a person’s hand/eye coordination, aid with stress and anger release, and develop the social capabilities of an individual. Video games are a positive and fun way to become something one could not in real life and help aid with creativity. The proposals that video games can cause increased violence, addiction, prejudice, and sexual instability in most adolescents are absurd, and the flaws in those arguments are almost too Fagan 2 obvious. First, what is to say that these effects are life-long? These affects may only last a little bit, and can thus be cured.
Cost Benefit Analysis is a rather easy and broadly enforced method for choosing to put together an adjustment. To use the cost benefit analysis you have to add the worth of the profits of a plan, and take away the costs that goes with it. The costs may be a onetime deal or it may be continuous. Benefits or profits are collected over time. We build this result moment in the analysis by computing a repayment time.
A major reason for this is that studies show that, for a young child, “Part of the increase in aggressive behavior is linked to the amount of time children are allowed to play video games. In one study by Walsh (2000), a majority of teens admitted that their parents do not impose a time limit on the number of hours they are allowed to play video games” (A. Norcia). Social skills are a very important part of growing up. Most behavioral problems can happen from having a lack or deficiency in social skill, which may lead to very high level of anxiety and anger that will have a negative effect on social skills. So by being in a social environment will help promote social skills.
Resulting in aggressive or violent behavior. “Playing a violent video game even for 20 minutes led individuals to become less sensitive to real violence” (Fournis, Abou, 2014, p. 1). The positive effects of playing video games are the mental skills required to play the games. If played correctly video games are used as leisure time entertainment but when people play video games that involve violence some people tend to forget the games aren’t real. Other positive effects are the ability to process knowledge to include reasoning, perception, and intuition.
Abdulaziz Aldossary Kathy L. Rowley English 201-16 October 3, 2012 “Why Games are Good for You” The article “Why Games are Good for You” by Steven Johnson presents reasons why electronic video games are not harmful. While other people have written and talked about the harm that video games bring to young people, Steven Johnson argues just the opposite. He says that video games have many benefits including making us smarter. Steven Johnson begins his article by describing what the critics say about video games. First, they are a great waste of time says Dr. Spock.