QUESTION 2 You'll be testing out conservation of mechanical energy in Pivot by watching a video in which they levitate a magnet above a track. The magnet is given an initial velocity and shot up a ramp. You can see the setup below with some of the instruments you can use to take measurements. Trial 1: launch 1.' pivot Based on this picture, what is an appropriate value for the initial height of the puck? O a. ho: 156m 0 b.h =0m o 0 ch =306m o O d.ho= 7 306m QUESTION 3 The way you will be testing out Conservation of Mechanical Energy is by predicting the maximum height that the puck will obtain, h. What is true about the velocity of the puck when it reaches its maximum height? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial 10pt v v A v X2 X2 V X TT (} O KM + P QUESTION 4 Based on your answers to the last two questions, which of the following equations represents Conservation of Mechanical Energy when it is applied to this situation? O a. PE = OJ O b. W = OJ O c. 1mv2= mgh O d. KE= OJQUESTION 5 1 points Save Answer True or false: we need to know the mass of the puck to predict the final height. O True O False QUESTION 6 2 points Save Answer Before you predict the maximum height of the puck you will need to find its initial velocity, because Pivot does not provide this information to you. Propose a method you could use to find the velocity of the puck before it starts to go up the ramp. (Hint: the puck's velocity is constant before it starts to go up the ramp. There are a couple of methods that will work equally well here.) For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial 10pt X2 X2 9 8 1 - t ABC V P O WORDS POWERED BY TINY QUESTION 7 1 points Save Answer After you measure the maximum height of the puck, you will be asked to compare it to your predicted value. Which of the options would you use to make this comparison? O a. Percent difference O b. Percent error c. Taking the difference between the values is fine