A simple pendulum is known to have a period of oscillation, T = 1.55 s. Student

Question

A simple pendulum is known to have a period of oscillation, T = 1.55 s. Student A uses an analog wristwatch and the same procedure to calculate an average period for the 5 oscillations and find T = 1.6 s. Student B uses a digital stopwatch to measure the total time for 5 oscillations and calculates an average period T= 1.25 s. Which period is more accurate, any why? Student B"s period of 1.25 s because a digital stopwatch is more reliable. Student A's period of 1.6 s because it is closer to the know n period than B's value. Student B's period of 1.25 s because the stopwatch can measure to 0.01 s. There is not enough information to answer this question. A simple pendulum is known to have a period of oscillation, T = 1.55 s. Student A uses an analog wristwatch and the same procedure to calculate an average period for the 5 oscillations and finds T = 1.6 s. Student B uses a digital stopwatch to measure the total time for 5 oscillations and calculates an average period T = 1.25 s. Which period is more precise, and why? Student B"s period of 1.25 s because a digital stopwatch is more reliable. Student A's period of 1.6 s because it is closer to the know n period than B's value. Student B's period of 1.25 s because the stopwatch can measure to 0.01 s. There is not enough information to answer this question. Which instrument should you use to measure the mass of a round ball of steel? A meter stick A triple-beam balance A vernier caliper A ruler If the magnitude and direction of the Resultant vector I s100m at 10degrees, then what is the magnitude and direction of the Equilibrant vector? 100m at 190 degrees 100m at 10 degrees 100m at 190 degrees 100m at 10 degrees What is the least count of the vernier caliper in the lab? 0.05cm 0.01cm 0.05mm 0.01mm

Explanation / Answer

1 -- B

2 -- C

3 -- B

4 -- A

5 -- B

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