Study the influence of fall height on the depth of sand Objective: To study the depth of sand based on the height of the falling ball. Variable: Selected independent variable: Height of dropped ball Selected dependent variable: Depth of sand to remove falling ball. Certain variables and their control methods: Variable amount of way to keep the amount of sand constant Keep sand in a bucket to keep it from spilling.
Prediction: In this survey we will look at the percentage of energy lost when the ball bounces. A variable that may affect the amount of energy loss is the height at which the ball falls. The type of ball used is the size of the ball and the temperature of the ball. The type of surface on which the ball falls. The height at which the ball falls affects the energy loss. The greater the force the ball uses from the surface, the bigger the ball, the more power is lost by sound, vibration, and heat.
Assumption: As the height of the falling ball increases, the depth of the crater increases. There is a theory. Higher drop means more gravity potential. When the ball falls, all of this energy is converted to kinetic energy and used to form craters on the ground. Variable: Independent: The height of the pendulum falling from a 1-meter ruler is used to measure the height at which the pendulum falls off the surface of the sand. We record each height and make it a table together with the result
Question: Students recommend a proportional relationship between the height of the falling clay ball and the diameter of the flat part. We plan an experiment to determine if this recommendation is correct. Objective: To study the relationship between fall height and flat part of plastic ball. The sphere was made of clay and was sized using vernier calipers to maintain a constant size throughout the experiment. A smooth and smooth surface area is obtained. Use a meter ruler to measure 60 meters above the surface area, fix the clay to the 60 meter scale and drop it. Win the rope on the flat part of the sphere and mark the position where the string stops using the marker. Using a meter ruler, measure the length of the string where the marker stops. To obtain the diameter divide the length of the string by 14 (pi). Record the fall height and diameter of the ball in a table