Answer Happy

Question 5 9 points Save Antwer Kyle has conducted a virtual experiment using a PhET simulation to carry out a series of collisions. In the simulation, he set the mass and initial velocity of each object, then tried the collision and recorded the final velocity Students calculate the initial and final momentum of each object, as well as the initial and final momentum of the system. He recorded the results in a table. Mass 1 (kg)) 0.5 05 0.5 05 05 0.5 1 05 Mass 2 (kg) 05 05 1 1 05 0.5 05 Mass 1 initial velocity (m/s) 0 1 0 Which conclusion can be derived from this result? The momentum of mass 1 is conserved The momentum of mass 2 is conserved Total momentum of mass 1 and mass 2 is conserved Total momentum of mass 1 and mass 2 is not conserved Mass 2 initial velocity (m/s) -1 0 0 A 0.5 0.5 05 Total initial momentum (kgm/s) 05 05 -1 05 0 0.75 1.25 Mass 1 final velocity (m/s) 4 0 133 0.33 4 05 0.67 0.33 Mass 2 final velocity (m/s) 0 1 0.33 0.67 1 1 117 0.83 Total final momentum (kgm/s) 05 0.495 -0.995 0505 0 0.75 1255 0.995

Question 6 9 points Save Antwer Kyle has conducted a virtual experiment using a PhET simulation to carry out a series of collisions in the simulation, he set the mass and initial velocity of each object, then tried the collision and recorded the final velocity. Students calculate the initial and final momentum of each object, as well as the initial and final momentum of the system. He recorded the results in a table. Mass 1 (kg) 0.5 05 0.5 05 0.5 0.5 1 0.5 Mass 2 (kg) 0.5 0.5 1 05 0.3 05 1 Mass 1 initial velocity (m/s) 0 1 0 1 1 1 1 Mass 2 initial velocity (ms) 4 0 4 0 0.5 05 ,05 Total initial momentum (kgm/s) 05 05 4 05 D 0.75 125 Mass 1 final velocity (ms) 4 0 -133 4.33 -4 05 9.67 0.33 Which of the following cannot be listed as the source of emor in this simulation experiment? There is a limited precision on the mass readings; only two decimal place is displayed. There is a limited precision on the velocity readings; only two decimal place is displayed. There is some uncertainty in measuring the length of the velocity vector There are rounding errors in calculations Mass 2 final velocity (m/s) 0 1 -0.33 067 1 1 1.17 0.81 Total Sinal momentum (kg-m/s) 05 0.495 4.995 0.505 0 0.75 1.255 0.995