PHYS 261 Pre Lab Questions and
Answers Rated A+
A block is measured to have a mass M=M=27 g and volume V=V= 5.07 cm3 with an
uncertainty of \Delta M=ΔM=0.01 g in the mass and \Delta V=ΔV=0.04 cm3 in the
volume. What is the uncertainty in the density in g/cm3? - ANSWER-error propagation
A cart of mass m = 0.21 kg rides on an air track that is tilted at an angle of 8.2 degrees
from the horizontal. What is the magnitude of the total force F (in N) on the cart? (You
can use g = 9.8 m/s2) - ANSWER-0.2935
A cart of mass m = 0.57 kg rides on an air track that is tilted at an angle of 3.7 degrees
from the horizontal. What is the magnitude of the cart's acceleration (in m/s2) ? (You
can use g = 9.8 m/s2) - ANSWER-0.6324
A cart with mass 0.13 kg and velocity 0.54 m/s collides on an air-track with a cart with
mass 0.11 kg and velocity -0.74 m/s. What is the final velocity (in m/s) of the two carts if
they stick together? - ANSWER--0.0467
A cell in an Excel spreadsheet contains $A$5. What does it mean? - ANSWER-Cell A5
is a fixed cell.
A mass and spring system has a resonance at fo = 1.007 Hz with a full-width of fFW
=0.014 Hz. What is the quality factor Q? - ANSWER-...
A sonic ranger measures positions x = 0.03 m, 0.207 m, 0.318 m, 0.35 m at times t = 0
s, 0.1 s, 0.2 s, and 0.3 s, respectively. Find the average velocity between t = 0.1 s and t
= 0.2 s. - ANSWER-1.11
Given an x-coordinate and a y-coordinate for a point, which type of chart in Excel will
actually plot the point at its Cartesian coordinates? (pick one) - ANSWER-Scatter chart.
In Excel, what is the Solver used for? (pick one) - ANSWER-Minimizing or maximizing a
cell by varying other cells.
In this lab a periodic force is applied to the cart using: - ANSWER-a spring that is
attached to a speaker
In this lab, the position of a cart will be measured using a sonic ranger. The ranger
measures the position by: - ANSWER-emitting an ultrasonic pulse
Lab 1 - ANSWER-Teach you basic few things about using Excel to plot and analyze
data in 261 labs
Answers Rated A+
A block is measured to have a mass M=M=27 g and volume V=V= 5.07 cm3 with an
uncertainty of \Delta M=ΔM=0.01 g in the mass and \Delta V=ΔV=0.04 cm3 in the
volume. What is the uncertainty in the density in g/cm3? - ANSWER-error propagation
A cart of mass m = 0.21 kg rides on an air track that is tilted at an angle of 8.2 degrees
from the horizontal. What is the magnitude of the total force F (in N) on the cart? (You
can use g = 9.8 m/s2) - ANSWER-0.2935
A cart of mass m = 0.57 kg rides on an air track that is tilted at an angle of 3.7 degrees
from the horizontal. What is the magnitude of the cart's acceleration (in m/s2) ? (You
can use g = 9.8 m/s2) - ANSWER-0.6324
A cart with mass 0.13 kg and velocity 0.54 m/s collides on an air-track with a cart with
mass 0.11 kg and velocity -0.74 m/s. What is the final velocity (in m/s) of the two carts if
they stick together? - ANSWER--0.0467
A cell in an Excel spreadsheet contains $A$5. What does it mean? - ANSWER-Cell A5
is a fixed cell.
A mass and spring system has a resonance at fo = 1.007 Hz with a full-width of fFW
=0.014 Hz. What is the quality factor Q? - ANSWER-...
A sonic ranger measures positions x = 0.03 m, 0.207 m, 0.318 m, 0.35 m at times t = 0
s, 0.1 s, 0.2 s, and 0.3 s, respectively. Find the average velocity between t = 0.1 s and t
= 0.2 s. - ANSWER-1.11
Given an x-coordinate and a y-coordinate for a point, which type of chart in Excel will
actually plot the point at its Cartesian coordinates? (pick one) - ANSWER-Scatter chart.
In Excel, what is the Solver used for? (pick one) - ANSWER-Minimizing or maximizing a
cell by varying other cells.
In this lab a periodic force is applied to the cart using: - ANSWER-a spring that is
attached to a speaker
In this lab, the position of a cart will be measured using a sonic ranger. The ranger
measures the position by: - ANSWER-emitting an ultrasonic pulse
Lab 1 - ANSWER-Teach you basic few things about using Excel to plot and analyze
data in 261 labs
