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10 Revolutions biography, 10 Revolutions discography
Part A
Make a small mark on the floor with the chalk or masking tape.Place the bicycle so that the valve stem on the front tire is exactly lined
up with the mark on the floor.Push the bicycle forward so that its wheel makes one complete revolution.That is, the valve stem on the tire will rotate exactly once.Record the distance in
the table below.Now, measure the distance traveled for 2, 3, 4, and 5 revolutions to
complete the table.Part B
Record how far you think the wheel travels in 6, 7, or 8 revolutions
in the table below.Part C
Predict how many times the wheel turns in 20 meters in the table below.Now mark a distance of 20 meters.How accurate was
your prediction?Draw a line
for each bike's set of points.Discuss with your group how the diameter
of the tire is connected to the distance traveled in each wheel revolution.Discuss how you can find the distance this bicycle will travel for each
revolution of its wheel without measuring.Using only your measurement of the tire diameter, construct a table for
the third bicycle that shows the distance it will travel after 1, 2, 5,
8, and 10 revolutions of the wheel.Roll the bicycle wheel to check your predictions for 1, 5, and 10 revolutions.Part A
In this activity, we are interested in the relation between the number
of pedal revolutions and the distance traveled by the bicycle.Turn a pedal one full revolution
and measure in centimeters how far the rear wheel turns.Watch the
valve stem to see how many times the wheel turns.As a group, estimate
how many meters you think the bicycle will travel after 5 and 10 revolutions
of a pedal.Record that measurement in centimeters in the table below and estimate
how many meters the wheel will travel after 5 and 10 revolutions.Measure the distance traveled for one revolution of the pedal
in centimeters and then estimate in meters the distance traveled for five
and ten revolutions.You already have this information for the first
and second gears!Discuss this question
with your group and record your estimates below.When the chain is on the smallest front sprocket and smallest rear
sprocket, will the bicycle go faster or slower than when the chain is on
the largest front sprocket and largest rear sprocket?To complete the third row of the table, divide the number of teeth in
the front sprocket by the number of teeth in the rear sprocket.Round
your answer to two decimal places.How could you design a bicycle so that the
top and bottom rows of the table were the same?About how many times faster is the fastest gear compared to the slowest
gear?If your bicycle is
in a gear where the chain is connecting a sprocket with 44 teeth in the
front to one with 22 teeth in the back, it will travel at the same speed
as if you had 50 teeth in the front and 25 in the back.Find additional combinations of gears that would be the same
speed as having 44 teeth on the front sprocket and 22 teeth on the rear
sprocket.Empire and the Economy: Jacob G.Whatever happened to Bush's global democratic revolution?Yushchenko to the tune of millions.Yanukovich camp, and dark intimations of KGB involvement.Georgian combo of George Washington and Thomas Jefferson.Shortly afterward, he was overthrown.What may provoke the ire of the U.NATO membership, or, in the case of Kyrgyzstan, increased aid.American empire deep into Central Asia.Why Are They So Afraid of Ron Paul?Petraeus: GOP Man on Horseback?Justin Raimondo is the editorial director of Antiwar.Reproduction of material from any original Antiwar.
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