In the first trial , we shot the circular metal ball out of the gun at an angle parallel to the ground(0).The gun , itself , had three levels of compression . The third compression was the strongest and thus , shot the ball farthest , and the first compression performed the weakest force. First , the value of time was calculated using the formula: t √2yo/g.Yo was set equal to 1, illustrating that the gun was positioned 1m from the ground, and g was equal to 9.8 (gravity constant). With this information, our time was found to be .45175 seconds. Now , using the plastic rod , we positioned the gun to its third compression and shot the ball a total of 3 times .Using a meter stick , we measured the
The projectile was launched three times and an average velocity was found. Part One: This part of the lab was to accurately predict how far the projectile launcher would launch the projectile when it is fired perfectly horizontally off a table. The distance from the ground to how high the ball would be fired from was measured. Then, the equations were used to solve for the time that it would take from the time the ball was being fired to when it hit the ground. Next, using the equations the total distance the ball would travel was found.
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.
Lab 8: Ballistic Pendulum Objective: In this lab we used three methods to measure the initial velocity of a projectile from a spring gun. In the first experiment we used kinematics alone to determine the mean initial velocity for the projectile. In the second experiment we added a simple ballistic pendulum to derive the velocity of the projectile using the principles of conservation of momentum and energy. In the third experiment we used a physical pendulum, the equations for conservation of angular momentum and energy, and the equation for the period to determine the initial velocity of the projectile. 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.
Best examples to prove this would be maximum range, right triangle and proving the projectile motion. The main reasons this angle is so special is the maximum range. No matter in what degree cannon ball is fired, the distance will never be higher than the one fired from 45degrees. Imagine three cannons on a field. The first one at angle of 30 degrees, the second one at 60 degrees and the third one at 45 degrees.
Making the left side our positive direction, and our right, the negative direction was essential in proving algebraically, the results of the experiment. When we say, “balance,” we mean to say we will try to set the net torque equal to zero, Σ Ʈ=0, we want all the forces on opposite sides to cancel out, giving us an even leveled meter stick. In our experiment, we had two different parts, each containing three slightly different trials. In the first half of the experiment, we hung the meter stick on the 50.0 cm mark and placed different weights on different ends. We moved around the weights until we ended up with what we saw to be an even leveled meter.
Pendulum Aim: To investigate the time for 1 oscillation for different lengths of pendulum and different masses for the pendulum bobs Hypothesis: The time taken for oscillation is proportional to the lengths of the pendulums Apparatus: * A retort stand * Strings * Masses( big, medium and small balls) * Metre ruler * Stopwatch Procedure: 1. Fix the iron stand on the bench 2. Hang the mass on the end of strings and the iron stand 3. Measure the lengths of pendulum with the metre rule 4. Displace the masses to cause oscillation 5.
19/04/12 Physics Lab Report : determination of Terminal Velocity Maksym Panas This lab investigates the velocity of a ball bearing falling through glycerin. A small metal ball bearing was released into tube,140 cm long, containing glycerin. When released , the bearing accelerated to terminal velocity and than maintained the speed until the bottom of the tube. I decided to find the clearings terminal velocity by comparing the distance taken for t to travel through the glycerin and the time taken to do so. Research Question : What is the terminal velocity of a ball bearing in glycerin?
The damper was used with a both a “light” and “heavy” setting, The damping setting did not appear to greatly affect the natural frequency. The use of extra mass did lower the natural frequency no matter the damping setting. The damper did dissipate vibration magnitude more rapidly it did not affect the natural frequency values noticeably. Figure 1: Spring Force/Displacement To directly calculate the spring constant (k) the slider had mass added three times and the displacement of the springs was recorded each time. With the mass converted into Newtons, the Displacement vs. Force graph was created.
All Pendulums Eventually Come to Rest with the Lighter Ones Coming to Rest Faster Galileo noted that the lighter pendulum comes to rest faster than heavier pendulums. As a test of his observation, two pendulums, nearly identical except for their bobs of different weights (cork and lead), were released at the same time and height. It was pulled back about 5 degrees, the cork bob came to rest while the lead bob was still moving. More trials were done and it revealed that same agreement with Galileo’s observation (Morgan,