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PHYS261 Cumulative Lab Study Guide Exam Questions And Actual Answers. $10.49
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PHYS261 Cumulative Lab Study Guide Exam Questions And Actual Answers.
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$A$5 means? - Answer Fixed cell How to plot cartesian coordinates - Answer Scatter chart Solver - Answer Minimizes or maximizes a cell by varying other cells To use a macro, you may have to first: - Answer Go to view tab and click on the macro button To exit a lab template: ...

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  • February 8, 2025
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  • 2024/2025
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PHYS261 Cumulative Lab Study Guide
Exam Questions And Actual Answers.
$A$5 means? - Answer Fixed cell



How to plot cartesian coordinates - Answer Scatter chart



Solver - Answer Minimizes or maximizes a cell by varying other cells



To use a macro, you may have to first: - Answer Go to view tab and click on the macro button



To exit a lab template: - Answer Enter name and section number and save file using macro



You measure the length of the same side of a block five times and find: b=11.0, 11.1, 11.2, 11.2, and 11.3
mm. What is the best estimate for b? - Answer 11.16 mm

Take the average



You measure the length of the same side of a block five times and each measurement has an uncertainty
of 0.10 mm. What is the uncertainty in the best estimate for b? - Answer 0.0447

=0.10/sqrt(5)



Yoy measure the lengths of three sides of a block and find a=12.23 mm, b=14.51 mm, c=7.45 mm with an
error of +-0.030 mm in each measurement. What is the uncertainty in the volume of the block? - Answer
6.8 mm^3

(DeltaV/V)^2=(deltaa/a)^2+(deltab/b)^2+(deltac/c)^2



A block is measured to have mass M=25.3 g and volume V=9.16 cm3 with an uncertainty of
deltaM=0.050 g in the mass and deltaV=0.050 cm3 in the volume. What is the uncertainty in the
density? - Answer 0.016 g/cm3

(Deltap/p)^2=(deltaM/M)^2+(deltaV/V)^2

, A block is measured to have a density p=2.76 g/cm3 with an uncertainty of deltap=0.030 g/cm3. Find
chi-squared when the measured density is compared to the accepted density p=2.70 g/cm3. - Answer
Chi-squared=4

Chi-squared=sum((xi-xtheory)/deltaxi)^2



In this lab, the position of a cart will be measured using a sonic ranger. This measures the position by: -
Answer Emitting an ultrasonic pulse



A cart of mass m=0.20 kg rides on an air track that is tilted at an angle 2 degrees from the horizontal.
What is the magnitude of the total force on the cart? - Answer 0.068 N

Mass*9.8*sin(theta)



A cart of mass m=0.25 kg rides on an air track that is tilted 3 degrees from the horizontal. What is the
magnitude of the cart's acceleration? - Answer 0.51 m/s^2

9.8*sin(theta)



A sonic ranger measures positions X=0.10 m, 0.15 m, 0.22 m, 0.28 m at times t=0 s, 0.10 s, 0.20 s, and
0.30 s. Find the magnitude of the average velocity between t=0.10 s and 0.20 s. - Answer 0.7 m/s

Deltax/deltat



Suppose you measure g=9.7 m/s^2 with an uncertainty of deltag=0.060 m/s^2. Is this consistent with the
accepted value g=9.801 m/s^2? - Answer Yes

Chi-squared=sum((xi-xtheory)/deltax)^2

Chidist(2.83,1)=0.09

USE EXCEL FOR CHIDIST



Two carts approach each other, collide, and stick together after the collision. This is an example of what
type of collision: - Answer Perfectly inelastic collision

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