Millikan Experiment Lab (SPH 4U1)
You should select to use beads (m=1x10-15kg) and the real value of e. You can use a 20x speed
value if you wish to speed up the experiment. Turn on the power supply and start a new droplet.
Adjust the voltage difference (coarse at first and then fine) until the droplet is balanced. Use this
potential difference and mass to calculate the value of the charge. Repeat MANY times to get
values that can be analysed to find a lowest common increment.
Write a report that describes your technique and strategies for solving the problem, as though you
are writing a short scientific paper for publication.
Persuade me, using specific reference to your data, that the value you found is e.
Knowledge/
Understanding
understanding of
concepts and
terminology under
investigation
Inquiry
Level 1
demonstrates
limited
understanding of
concepts and
terminology
Level 1
Level 2
demonstrates
some
understanding of
concepts and
terminology
Level 2
application of the
skills and
strategies of
scientific inquiry:
measurements
Measurements
taken with little
accuracy
application of the
skills and
strategies of
scientific inquiry:
data collection
Little care taken in Some care taken
recording data,
in recording data,
insufficient data
barely sufficient
data
application of the
skills and
strategies of
scientific inquiry:
Analysis
Struggled with
analysis, results
ambiguous
Communication
Level 1
Measurements
taken with some
accuracy
Level 3
demonstrates
considerable
understanding of
concepts and
terminology
Level 3
Measurements
taken with
reasonable
accuracy
demonstrates
thorough
understanding of
concepts and
terminology
Level 4
Measurements
taken with
considerable
accuracy
Considerable care Thorough data
taken in recording collection and
data, sufficient
recording
data
Demonstrated
Was successful in
some success with analysis
analysis
Level 2
Level 4
Level 3
Was completely
successful in
analysis and
results
Level 4
communication of
information and
ideas
communicates
information and
ideas with limited
clarity and
precision
communicates
information and
ideas with
moderate clarity
and precision
communicates
information and
ideas with
considerable
clarity and
precision
communicates
information and
ideas with a high
degree of clarity
and precision
use of scientific
terminology,
symbols,
conventions, and
standard (SI) units
uses scientific
terminology,
symbols,
conventions, and
SI units with
limited accuracy
and effectiveness
uses scientific
terminology,
symbols,
conventions, and
SI units with some
accuracy and
effectiveness
uses scientific
terminology,
symbols,
conventions, and
SI units with
considerable
accuracy and
effectiveness
uses scientific
terminology,
symbols,
conventions, and
SI units with a high
degree of
accuracy and
effectiveness
Comments:
TOTAL:
25