Use the ramp to push the ball slowly through the Accessory Photogate, as shown in Figure 3.2. Determine the point at which the ball first triggers the Photogate Timer—this is the first point at which the LED turns ON—and mark it on the paper. Then determine the point at which the ball last triggers the timer, and mark this point also. Measure the distance between these marks and record this distance as Dd. Replace the ramp as in Figure 3.1.
Jessica Yan Rick St. Denis, Tyler Wiseman 13 September 2012 Projectile Motion: Ball in the Bin Purpose: The purpose of the experiment is to determine the velocity of a ball launched from the Projectile Launcher device, and then to use that velocity to find where on the floor the ball will land given a specific angle. Theory: Two-dimensional motion is as it sounds, made of the two components of Vertical velocity and Horizontal Velocity. Horizontal Motion can be described as constant, neglecting air resistance, and Vertical Motion is characterized by the acceleration of gravity pulling at 9.8m/s². In this particular experiment, the total velocity will be split into the two components in order to find the time in the air, and horizontal distance from the launcher. The motion of these components can be described as d=vt for constant horizontal motion, and d=1/2at² + Vit.
The purpose of this experiment was to determine if men or women have faster reaction times by measuring the reaction time of subjects using a reaction time stick. The hypothesis for the experiment was men have a faster reaction time than women; the null hypothesis was also men have a faster reaction time than women. Method and Materials: 1. A reaction time stick with increments in milliseconds was obtained. 2.
We did the calculation after we finished the measurement and adjustment. The find day we make the graph of the contraption, and then do the final drop test. Problem of Statement: To design a device that will protect 1 large Grade AA raw egg from breaking when it is dropped from second floor. The device should have a light weight short egg removal time, and the most accurate drop to the drop zone target. Diagram of the Contraption: Prototype: The contraption after adjustments:
14. Begin your stopwatch at zero time, holding it in your left hand to begin timing. 15. In your right hand hold the pipette with HCl and squeeze the HCl into well #1 and start timing with your stopwatch. 16.
Procedure Part A- Visual Stimulus 1. While one student is watching the clock, the other student shall start the clock using the silent switch. 2. The student whose reaction time to a visual stimulus is being tested shall be watching the clock and should press the button to stop the clock as soon as the display on the clock changes. 3.
Then you place another 200 gram mass on the 210 degree mark. Then we have to replace the mass at the 30 degree mark with two masses, one at the 0 degree mark and one at the 80 degree mark. Essentially we are trying to calculate the x and y component vectors of a 200g mass at 30 degrees. So what we did was we just guess and checked the variables of weight at the 0 degree mark and at the 90 degree mark’s pullys until the ring was centered. You can us+e the weight on each pully to calculate the magnitude and the direction of the component vectors at 90 and 0 degrees.
Zero Tolerance rules started with the best of intentions in the early 1980’s to counter increased exposure to drugs in schools. The rules were expanded to weapons so that districts could work to safeguard students from an increase in school violence during the early 1980’s. Research is showing that zero-tolerance rules aren’t working to counter student’s aggressive behaviors, and in many ways have created stressors on systems that weren’t designed to mange large amounts of students outside school. To counter aggressive behaviors in schools research is showing that student trainings, through social skills and anti-aggression instruction, are one of the only effective tools in changing student’s behaviors to a point where there is an overall reduction in aggressive and dangerous behaviors in the school setting (Wilson & Lipsey,
Strike one! Strike two! The anticipation of the third strike is inevitable. All I could do is stand there and wait until the batter was struck out or the ball was hit. In a softball game, players have to be attentive because in one moment, a ball can strike your face without warning.
While recording the masses then placed water and dropping the solid (A) into the graduate cylinder and thus calculating density of unknown (A). Followed by obtaining an unknown assigned liquid and find the volume and mass and the density of the liquid. At the end of the experiment the students gathered the information of our assigned trials and part and shared them with one another Trail 1 A | Trail 2 A | Trail 1 B | Trail 2 B | .752g | 1.088g | .10g | .10g | 5.35ml | 7.012ml | 5.00cm3 | 5.00cm3 | 5.48ml | 7.23ml | 5.01cm3 | 5.13cm3 | .13ml | .219ml | .01cm3 | .11cm3 | 5.8g/ml | 4.99g/ml | 1.0g/cm3 | 1.0g/cm3 | Trail 1 A | Trail 2 | Trail 1 B | Trail 2 B | 25.235g | 25g | 25.41g | 25.67 | 29.225g | 29.667g | 30.35g | 30.46 | 3.991g | 4.667g | 4.94g | 4.79g | 5.25ml | 5ml | 5.00ml | .5,00ml | .760g/ml | .9334g/ml | .99g/ml | .96g/ml | Conclusion The overall experiment was to show and guide student in how basic laboratory would work. While the density of the experiments solid was 4.99 g/cm^3 and the liquid was .933 g/ml. As results were, off