PHYS110 Having a %22Ball%22 with Uncertainties Lab - STUDENT VERSION
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Siena College - General Physics 110
Having a “Ball” with Uncertainties Lab
NAME:
GROUP MEMBERS:
Learning Goals
1.
In this lab, you will engage with the ideas of (1) uncertainties in measurements and
experiments and (2) data analysis.
Equipment: Video of experiment (see link below), a stopwatch and/or timer app.
Video:
https://www.youtube.com/watch?v=_iuXgpFPnX0
Watch the video of two people (Professor Finn’s children, Caitlin and James) tossing a ball
back and forth. Measure the time it takes for the ball to travel from one person to the other
and record these times, keeping track of which person is throwing. That is, make one list of
times for when Caitlin is throwing the ball, and a separate list of times for when James is
throwing the ball. You may use a stopwatch/timer app on your phone to measure the time.
Record these times.
Your instructors will share a Google Sheet with the class so that everyone can enter their
data on their own:
https://docs.google.com/spreadsheets/d/1w5NAfE0wE5oXMcoW907Y3yQ7AOil1j2erRAE
soV6kZ0/edit?usp=sharing
Your instructors will use the spreadsheet to calculate:
●
The average time and standard deviation for the times recorded for each throw.
●
The average time and standard deviation for the times recorded by each person.
Purpose & Procedures
●
Briefly summarize, in your own words, the objective(s) of your experiments.
●
Describe your experimental procedures in enough detail that another group could recreate
your experiments exactly --
not
just do experiments
similar
to yours. In your detailed
procedures, specify precisely how others will know when you started/stopped the time
measuring device.
Scientific Ability
Missing
Inadequate
Needs
Improvement
Adequate
B1
Is able to identify
the phenomenon to
be investigated
No phenomenon is
mentioned.
The description of the
phenomenon to be
investigated is
confusing, or it is not
the phenomena of
interest.
The description of the
phenomenon is vague
or incomplete.
The phenomenon to be
investigated is clearly
stated.
B2
Is able to design a
reliable experiment
that investigates the
The experiment does
not investigate the
phenomenon.
The experiment may
not yield any
interesting patterns.
Some important aspects
of the phenomenon will
not be observable.
The experiment might
yield interesting
patterns relevant to the
1
Siena College - General Physics 110
Having a “Ball” with Uncertainties Lab
phenomenon
investigation of the
phenomenon.
Data Tables
●
Record all of the data that
only you collected
in your experiments in neat, easy to
understand tables with units included
.
●
Take into consideration the number of trials that your group thinks should be run.
Scientific Ability
Missing
Inadequate
Needs
Improvement
Adequate
G4
Is able to record and
represent data in a
meaningful way
Data are either absent
or incomprehensible.
Some important data
are absent or
incomprehensible.
All important data are
present, but recorded in
a way that requires
some effort to
comprehend.
All important data are
present, organized, and
recorded clearly.
Graphical Representations
●
Include a graph which represents the data from the class as a whole
.
●
Your instructor
will generate graphs that summarize the data for the class as a whole.
Discuss these graphs with your lab partners or with the other students at your table. Are
they all measuring the same thing?
Scientific Ability
Missing
Inadequate
Needs Improvement
Adequate
A11
Graph
No graph is present.
A graph is present, but
the axes are not labeled.
There is no scale on the
axes. The data points are
incorrectly connected to
each other instead of
using an appropriate
trendline.
The graph is present and
the axes are labeled, but
the axes do not
correspond to the
independent and
dependent variable OR
the scale is not accurate.
The data points are not
connected to each other,
but there is no trendline
either.
The graph has correctly
labeled axes, the
independent variable is
along the horizontal axis
and the scale is accurate.
The trendline is correct.
Data Analysis
●
What patterns did you notice in the experiments you performed? Reference your data tables
and graphs.
●
State the values for the average time and standard deviation for the time recorded by you
for each person (Caitlin and James).
2
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