I think this will happen because the potential energy is being converted to kinetic energy as it slows down and hit's the surface. I will need a squash ball, a meter ruler, goggles, a Bunsen burner, a heat proof mat, a tripod, a beaker half full of water, a thermometer, wire gauze and some tissue. As they are pushed about, the molecules in the ball collide with and rub across each other. What actual measurements do you take? Detailed reason for prediction The ball has more potential and kinetic energy when it is released from a greater height, making the ball bounce higher. Test 2: Ball Bounce Time Comparison Drop a ball from a height of 3 ft, timing from when the ball is released until the ball stops bouncing. At the bounce the potential energy is recovered if it is bouncy. .
One is Newton's third law of motion: for every action there is an equal and opposite reaction. You could choose to concentrate only on the spin imparted by the kick, the bat or the racquet, or you may want to get really complicated and consider the spin of the incoming ball as well. Grade 5 Do you agree with this alignment? The same investigation will then be repeated, but one of the independent variables will be changed. A hard ball would not therefore it would not bounce very high at all. You can also do the experiment on different surfaces. That makes it harder to measure the angles; just remember that what is important is measuring the angles at the point of impact. If you hold it higher, such as up over your head, it has even more potential energy.
You could select the measurement you dropped the ball from and it gave very accurate results. It was expected that the bounce height will increase as drop height increases, but will not be quite as high as the original drop height and the resulting bounce efficiency will remain relatively consistent throughout the drop height range. Tell them that the goal is to write down as many questions as they can in the time provided. Type of Ball- The type of ball would greatly affect the experiment because different types of balls have different amounts of elasticity so some would bounce higher. This in accuracy will of affected my results. If you hold out your hand and drop the ball, with how much energy does it start? The efficiency of the ball dropped on the wooden surface shows that the trend decreases at a decreasing rate so y might be inversely proportional to x.
For any other use, please contact Science Buddies. What might be some material properties that they consider? You can set up a simple model to start your investigation. The sand was very good at stopping balls dropped vertically or from a steep angle, but the retardation of balls at a shallow angle was much less. Remember to put the top edge of the tape at the every 20 cm mark. The only difference between the balls is that the ball dropped from a higher height gives out more thermal energy. If this were changed during the investigation it would affect the data since if I changed the way I dropped the ball it could affect the bounce height because if I drop the ball using my flat hand and releasing the ball but my hand is above the ball.
Prediction: I predict that the ball will bounce higher than its average room temperature height once the temperature inside the ball has increased Hypothesis: I predict that the ball will bounce higher once it is heated because when the temperature increases, the gas inside the ball will too. Independent variables There are many independent variables which can also be called the manipulated variable- the variable that is varied in the investigation , but I will only vary two of them: the height the ball is dropped, The surface material the ball is dropped on will also be changed. This is because as the ball goes faster it passes through a greater volume of air each second. Also the mass of the ball affects the chances of the ball reaching its terminal velocity. The energy has left the ball! Depends from where you measure the heights. Show the data by making a line plot, where the horizontal scale is marked off in appropriate units— whole numbers, halves, or quarters.
In fact, they are all designed with specific characteristics in mind and are quite varied. Risk assessment There are not many risks from dropping a ball but safety must be considered. But just how many bounces can a basketball make before losing all of its kinetic energy and stopping bouncing? They were also as accurate as possible in the conditions; the environment the investigation was performed. If you have specific questions about your science fair project or science fair, our team of volunteer scientists can help. These both support my prediction and show that my prediction was correct. You are forced to learn.
The higher the air pressure the more air particles per cubic meter. Though many improvements could have been made, there was one anomalous results collected and included and it did affect the graphs and final conclusion. If we were in a different situation using a ball, which is not hollow, I predict that the ball would bounce lower than a ping-pong ball when dropped from the same height. Bouncing Ball Investigation This is an experiment to investigate bouncing balls and how they behave in different situations. The closeness of your answers standard deviation depends on the care with which you do the experiment. Procedure 3 Repeat steps 1 to 4 with the other surfaces you wanted to test.
Section 4 Information from secondary and preliminary work To ensure the investigation that I carried out was correct and what variables had to be considered. Potential energy is the energy stored in an object due to its height above the ground. Consequently, it will take more force than the ball bounced with to return the ball to the height from which is originally fell. We have to look at the number that has an x at the end and the first two numbers of line is percentage for example that my are 64 and as we all know that efficiency is calculated percentage so my efficiency for the ball would be 64%. The energy that the ball hits the floor with is kinetic energy.
As gravity remains the same the amount of work acting on the ball remains the same apart from slightly more air resistance due to the ball travelling faster and so hitting more air particles per second, but the effect of this is negligible and the ball travels further before stopping. If players do not put enough energy back into the ball, they will not be able to dribble it effectively. The perfect thing to liven up a rainy day, school vacation, or moment of boredom. Where the ball goes depends on. Grades 3 - 5 Do you agree with this alignment? Results: Height the ball bounced to cm h 2 Height the ball was dropped from cm h 1 repeat 1 repeat 2 repeat 3 repeat 4 repeat 5 Average of all repeats Average of the middle three repeats 200 105 103 109 104 106 105. The dependent variables rely on the independent variables: - Bouncing Ball Experiment A squash ball is a hollow ball made of rubber, with air inside.