The height of the apex is recorded in your table. Use the fact that the ball was originally released from rest off of the roof which was 5.14 meters above the ground. You are to calculate the coefficient of restitution for the third ball. In our lab, it can be calculated as the ratio of |v o| for the ball rising to the apex divided by |v f | for the ball falling from its initial release off the roof. The coefficient of restitution is a measure of the speed of separation to the speed of approach in a collision. Repeat steps 3 and 4, this time using the golf ball, then the racket ball. Why did the ball not bounce back up to the height from which it was originally released? Dooley 9/6/16 CALCULATING THE ACCELERATION OF GRAVITY LAB. How should the ball’s impact velocity when it first strikes the ground at the start of the bounce compare to its final impact velocity when it strikes the ground at the conclusion of the bounce? Support your answer. Also use the scale to measure the mass of the ball in grams. The Gravity Force Lab simulation (see screen shot in Figure L6.3) enables you to measure the amount of gravitational force that two objects exert on. Applying a pull or push to an object is an example of a contact force, where one object. Zero the force probe, hang the ball on the force probe and measure the force on the ball. a ball is rolling down a driveway and hits a curb, the force of the curb will cause the ball to stop. Therefore, large, flat objects are likely to exhibit the greatest extent of air resistance while dense. While all objects are known to accelerate downwards at 9.8 m/s/s, the shape of the object has the ability to impact the average velocity of the fall due to the effect of air resistance.
#Gravity lab using balls pro
1) Please, connect the force probe to the Lab Pro interface and open the logger pro software. Objects free fall due to the influence of gravity. Use the triple beam balance to measure the masses of these balls. Which aspect of the data collection had the least precision: the timing or the ball's height measurement? Support your choice. First lets us calculate the gravitational pull of Earth on the provided ball. Each lab group should select 1 marble and 1 tennis ball. Move the mass so that the string makes an angle of about 5° with the vertical. Exporter of Physics Lab Instruments - Balls, Solid, Sets, Specific Gravity Set, Bicycle Wheel Gyroscope and Pulley, Single, With Three-Way Attachment. Using your average experimental value for "g", calculate a percent error against the accepted value for the acceleration due to gravity at sea level, -9.81 m/sec 2. Procedure (to determine acceleration due to gravity value using pendulum motion) Measure the effective length of the pendulum from the top of the string to the center of the mass bob. 1 Drop a ball from a height that is not so high to avoid air resistance build up and not so low to affect the time measurement because of reaction time using the stop watch. A small ball, measuring tape, Stopwatch and calculator. All of the simulations are freely available from the PhET web site for incorporation into classes.What is your group's average experimental value for "g" based on all 5 trials? To purpose of this lab is to measure the acceleration due to gravity g and to use g to find the Earth’s mass.
The simulations are animated, interactive, and game-like environments in which students learn through exploration.
This item is part of a larger collection of simulations developed by the Physics Education Technology project (PhET). The simulation was designed to promote two basic concepts: 1) All interacting objects exert a gravitational pull, even if it is very small 2) The magnitude of the gravitational attraction depends on the mass of the interacting objects and their distance apart.Įditor's Note: Scroll down on the page to find supplementary lesson plans and activities, such as a Calculations Lab, Clicker questions, and quantitative graph building. Watch the force vectors change as you change the mass. The mass of either sphere can be changed from 1-100 kg. It features two spherical objects exerting a gravitational pull on each other. This interactive simulation helps students visualize the gravitational force that two objects exert on each other. The Physics Front is a free service provided by the AAPT in partnership with the NSF/ NSDL.