Answer Happy

Lab 7: Energy lab
In this lab, you will:
‘Friction’ tab. You would be able to see the screen as shown in
the picture below. Before proceeding with the experiment, play
around and make yourself familiar with the setup and the tools.
Press ‘Restart skater’ before starting the experiment.
Part I
Check the bar graph option. Slide the friction bar all the way
to the left to make friction zero. Choose V type track as shown in
picture above.
Put the skater on the left top of the track. Capture the screen
shot and insert here.
Press the play button. The skater rolls down the track. Pause
the simulation as soon as the skater reaches the bottom (you can
use slow motion, so that it would be easy to pause when the skater
reaches the bottom). Capture the screen shot and insert here.
Again, press the play button and let the skater continue to the
right side. Pause the simulation when the skater reaches the top of
the track on right side. Capture the screen and insert here.
Now, compare the graphs you obtained at three different
positions of the track and answer the following questions.
Part II
In this part, you will introduce
friction in our experiment.
Slide the friction bar to the
middle.
Now, repeat the experiment you
performed in part I and let the skater run up and down the slope
for 10 times. Based on your observation, please answer the
questions below (Screenshot is not required for this part).