Your 'cq_1_00.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** **
Is the tape speeding up or slowing down?
It appears to me that the tape does neither. I was attempting to watch the starting and ending times and the tape appears to roll for about 1 second.
Is the pendulum speeding up or slowing down?
I would say that the pendulum is slowing down.
Which speeds up faster, the tape or the pendulum?
The pendulum appears to start faster than the tape, but the tape speeds up faster.
What is going to limit your ability to precisely measure the positions of these objects?
I believe the quality of the video limits my ability to read the tape measure accurately and also the timer on the computer, the timer is difficult to obtain an exact start and stop time.
If you did take observations of positions and clock times, how accurately do you think you could determine the positions, and how accurately do you think you would know the clock times?
It is difficult to estimate what the inches are even when using the pause button. I believe I could determine the position pretty accurately. I would know the clock time exactly when using the pause button, the time was extremely visible.
How can you use observations to determine whether the tape rolling along an incline is speeding up or slowing down?
I can observe approximately the time the tape is beginning to roll and the approximate time the tape hits the tape measure, compare these times to the time in the other videos to see whether it is speeding up or slowing down.
How can you use your observations to determine whether the swinging pendulum is speeding up or slowing down?
I would observe the swinging pendulum in the same manner as the tape.
Challenge (University Physics students should attempt answer Challenge questions; Principles of Physics and General College Physics may do so but it is optional for these students): It is obvious that a pendulum swinging back and forth speeds up at times, and slows down at times. How could you determine, by measuring positions and clock times, at what location a swinging pendulum starts slowing down?
If you could capture the pendulums position frame by frame then you could measure the time differences between the frames to determine when the pendulum is slowing down.
Challenge (University Physics students should attempt answer Challenge questions; Principles of Physics and General College Physics may do so but it is optional for these students): How could you use your observations to determine whether the rate at which the tape is speeding up is constant, increasing or decreasing?
** **
30 minutes
** **
&#This looks very good. Let me know if you have any questions. &#