Dependable controls are sometimes very hard to develop. Readings: Carrying out an investigation The longer it takes to stop, the higher it bounces to. A ball falls from a height of 3 metres. The difference between the predicted height and the actual height will provide evidence as to how air resistance affects the flight of the ball. It was difficult to get down to the exact level of the blue tack seeing as it meant lowering your entire upper body in the short amount of time taken for the ball to hit the floor and rebound again to get your eye level from h1 to h2 (where the blue tack was stuck, approximately). These inaccuracies could have been caused by external factors or parallax error even though efforts were made to avoid parallax error occurring - by dropping the ball one time that was not measured and placing a blob of blue tack onto the meter rule at the approximate height it bounced to. Specifically, you are tasked to determine: B.) Ball_Bounce - West Virginia University Is a bouncing ball an example of oscillatory motion? Therefore the energy that the ball hits the floor with = mh, The proportion of energy lost when ball hits the floor = The Coefficient to the restitution of the two objects (C, All of the energy that the ball leaves the floor with is converted back into GPE, If dropping a ball in a vacuum all you need to know in order to know how high the ball will bounce to is h, can be found out by looking at a graph, the gradient, as a percentage of 1 gives the amount of energy conserved and therefore C. The clamp stand will be clamped down to the desk using a g-clamp to prevent it falling over and causing possible injuries. WebBouncing Ball Experiment - Free download as Word Doc (.doc / .docx), PDF File (.pdf), Text File (.txt) or read online for free. Bouncing Ball For a dropped ball, the total mechanical energy is defined as the sum of its kinetic energy and its gravitational potential energy. The third stage is the point at which the ball is momentarily deformed, and bounces off the ground in an upward direction until it reaches its maximum height. Record the results in a table like this: Divide the bounce height of each row by the release height of the same row and write the result in the last column. How well a ball bounces deals with its coefficient of restitution. WebDrop the ball from the line between cinder blocks/bricks to make the measurements more accurate. WebThe Bounciest Ball Experiment Overview: In this lesson, students conduct a series of experiments with different balls to observe which bounce the highest and to see how they could make balls bounce higher. The balls are shown at rest, about to bounce back up. The weight and material of the ball will be kept the same throughout the experiment by using the same ball. We felt the magic immediately. Have all your study materials in one place. Working out the variation in results shows how accurate the experiment was. Hypothesis: Based on your gathered information, make an educated Ball The CoR can be measured directly by velocity measurements but often it is handier to measure the height of rise of the ball after it bounces relative to the height that it fell. Aim:To find out what affects the height to which a ball bounces. When a ball drops in air there is air resistance to which the ball loses energy in the form of thermal energy. Is a bouncing ball a simple harmonic motion? Both potential and kinetic energy have units of Joules (J). This help to greatly increase the accuracy of the experiment. For this reason, its also known as a controlled variable or a constant variable. A single experiment may contain many control variables. \[S_{\infty} = \frac{\alpha(1-r^{\infty})}{1-r} = \frac{\alpha(1-0)}{1-r} \qquad S_{\infty} = \frac{\alpha}{1-r}\]. This denting extracts energy from the balls motion and stores much of it in the elastic surfaces of the floor and ball. Finally, we need to multiply the distance found by 2, as one bounce of the ball includes both a rise and fall. Variables are the factors that are changed, measured or controlled. My hypothesis is based on my observation of balls that are not well inflated. Maybe you are reading a scale incorrectly, or maybe the measuring instrument is working erratically. will be from the bottom of the ball as it hits the floor to the bottom of the ball at the top of its arc after bouncing. In this experiment you will test the bounce of a dropped ball for different surface hardness. ", " My husband and son came with me for the tour. As CR = h2/ h1it follows the gradient of the graph change in h2/ change in h1= CR. WebThis experiment,is an investigation into the maximum height of the bounce of a ping pong ball when it is first released.This is because of the unpredictability of the bounce not always reaching the same height.This we can assume their are many factors effecting the bounce of the ping pong ball.The following experiment will determine how different Materials:-Carbon Paper-Goggles-Golf Balls: Terminal Speed and Coefficient of Restitution. In this experiment the only variable that we modify is the release height and we keep all other variables unchanged. It tells us that the ball consistently bounced to half of its drop height.
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