Question

You are asked to study a physical system. You determine theoretically that the equation q = rp^2 + s should describe the behavior of the system, where q and p are some physical quantities, and r and s are some constants. To test this equation, you set up an experiment. In your experiment, you keep r and s constant, vary p, and measure q for multiple p values. Mark all the correct statements below. Select one or more: a. The plot of the q vs p^2 data should look like a straight line. b. From the intercept of the q vs. p^2 plot, we can determine the physical constant s. c. From the slope of the q vs. p^2 plot, we can determine the physical constant r. d. The plot of the q vs p data should look like a parabola. You measure the time it takes to complete 5 rotations 3 times and obtain the following measurements. t1 = 5.26 sec t2 = 6.15 sec t3 = 5.37 sec What is your best estimate of the period T in secs? In this experiment, you are asked to repeat each time measurement three times. What do we do with those measurements? Select one: a. We average them to reduce the systematic error. b. We take the last measurement because it is the most accurate one. c. We average them to reduce the statistical error. What is the purpose of the pointer in the Sargent-Welch apparatus? Mark all that apply. Select one or more: a. It provides a frictional force on the bob to slow down the rotation. b. It provides a normal force on the bob to counteract the bob's weight. c. It provides a visual guide to the experimenter to determine the correct rotational speed. d. It provides a visual guide to the experimenter to determine the correct weight to put in the bucket.

You are asked to study a physical system. You determine theoretically that the equation q = rp^2 + s should describe the behavior of the system, where q and p are some physical quantities, and r and s are some constants. To test this equation, you set up an experiment. In your experiment, you keep r and s constant, vary p, and measure q for multiple p values.

Mark all the correct statements below.
Select one or more:
a. The plot of the q vs p^2 data should look like a straight line.
b. From the intercept of the q vs. p^2 plot, we can determine the physical constant s.
c. From the slope of the q vs. p^2 plot, we can determine the physical constant r.
d. The plot of the q vs p data should look like a parabola.

You measure the time it takes to complete 5 rotations 3 times and obtain the following measurements.
t1 = 5.26 sec
t2 = 6.15 sec
t3 = 5.37 sec

What is your best estimate of the period T in secs?

In this experiment, you are asked to repeat each time measurement three times. What do we do with those measurements?
Select one:
a. We average them to reduce the systematic error.
b. We take the last measurement because it is the most accurate one.
c. We average them to reduce the statistical error.

What is the purpose of the pointer in the Sargent-Welch apparatus? Mark all that apply.
Select one or more:
a. It provides a frictional force on the bob to slow down the rotation.
b. It provides a normal force on the bob to counteract the bob's weight.
c. It provides a visual guide to the experimenter to determine the correct rotational speed.
d. It provides a visual guide to the experimenter to determine the correct weight to put in the bucket.

Added by Leah S.

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