Physics Laboratory Experiments
8th Edition
ISBN: 9781285738567
Author: Jerry D. Wilson, Cecilia A. Hernández-Hall
Publisher: Cengage Learning
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Chapter 3, Problem 1Q
Explain the probable source of error(s) in the experimental determination of the number of manual pages.
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Chapter 3 Solutions
Physics Laboratory Experiments
Ch. 3 - Prob. 1ASACh. 3 - Does a laboratory balance measure weight or mass?...Ch. 3 - What is the function of the vernier scale on the...Ch. 3 - Distinguish between positive and negative zero...Ch. 3 - What is the purpose of the ratchet mechanism on a...Ch. 3 - Explain how readings from 0.00 through 1.00 mm are...Ch. 3 - Prob. 7ASACh. 3 - Prob. 8ASACh. 3 - Explain the probable source of error(s) in the...Ch. 3 - Prob. 2Q
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- (a) A person's blood pressure is measured to be 104 ± 2 mm Hg. What is its percent uncertainty? (Note that percent uncertainties should be reported to two significant figures.) % (b) Assuming the same percent uncertainty, what is the uncertainty in a blood pressure measurement of 80 mm Hg? (Note that uncertainties should be reported to one significant figure.). mm Hgarrow_forward2.) A single reading taken with a meter stick for the length of a cylinder is 5.5 cm. What is the prsable percent error in the reading? 3.) The following readings were taken with a meter stick for the length of a cylinder: 5.5 cm, 5.3 cm, 5.4 cm, 5.5 cm and 5.6 cm. Calculate the standard deviation of the mean, the stand error and the probable percent error. 4.) How many significant figures should be given in reporting the length of the cylinder in question 3? 5.) If the radius of the cylinder in question 2 is 2.4 ± 0.2 cm and its mass is 32.6 ± 0.5 gm, what will be the probable percent error in the density of the cylinder? What will be the probable error in density? How many significant figures should be given in reporting the density? Conclusions?? 02 6) (figure3) 6a)Befer to Figure 3. Given a track length of 90 cm and a height difference of 18 cm, what is sin 6 02 01 Fig. 2 Z)(figure 2) plane (see Figure 2). Attach the diagram in question#8 below. What would be the acceleration given…arrow_forwardModern instruments usually have digital readouts; the reading in the rightmost digit will sometimes fluctuate up and down among several values. What type of error is this? Explain its effect on a large data set.arrow_forward
- The size of a large book is measured. Length is measured as 9.4 cm, the height (thickness) is measured as 0.5 cm, the width is measured as 4.80 cm and weight 25 grams. Calculate density of the book and compare with known density of 1.2 gr/cm^3 using percent error formula. What is the precision of each measurement Find the propagation of error for the volume.arrow_forwardThe mass of an object was measured eight times on a balance readable to +1 g, and the followng values were recorded: (298 + 1)g. (311 + 1)g, (302 + 1)g, (312+ 1)g, (313 + 1)g. (317 + 1)g, (302 + 1)g, and (331 + 1)g. What is the percentage uncertainty of Om x 100% 2 the measurement Select one: O a. 12.862 % O b. 1.286 % O C. 0.129 % O d. 0.013 %arrow_forwardthe volume of the rectangular block in the figure is calculated from the following measurements of its dimensions: a = 10.00 ± 0.10 cm, b = 5.00 ± 0.06 cm and c = 4.00 ± 0.04 cm. calculate the error in the value of the volume of the block assuming: a) the errors are independent b) the errors are correlated such that they all push the estimate in the same direction.arrow_forward
- A person's blood pressure is measured to be: 115 ± 7 mm Hg. What is its percent uncertainty? (Express your answer to the correct number of significant figures and proper units. Use unrounded values in your calculations.)arrow_forwardExpress each approximation of p to six significant figures:(a) 22/7and (b) 355/113. (c) Are these approximations accurate to that precision?arrow_forwardThe radius of a circular disk is given as 28 cm with a maximum error in measurement of 0.2 cm. Use differentials to estimate the a) maximum error in the calculated area of the disk, b) the relative error and c) percentage error?arrow_forward
- As long as you take measurements very carefully all types of error (Systematic and random) can be completely eliminated from the lab. TRUE/FALSEarrow_forward2.03 ) Diameter of a coin is measured ast.cm and its height (thickness) is measured as 0.024 cm and weight 5.3 grams. Calculate density of the coin and compare it with the density of copper 8.96 gr/cm3. Could your coin be pure copper? What is the precision in length (delta h) and precision in mass (delta m) based on the measurements given above.arrow_forwardTime intervals measured with a stopwatch typically have an uncertainty of about 0.2 s, due to human reaction time at the start and stop moments. What is the percent uncertainty of a hand-timed measurement of (a) 5.5 s, (b) 55 s, (c) 5.5 min?arrow_forward
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