Lab 9
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Lab 9 Report
Section 09: Work - Energy Activity
Pivot Interactivities
Giselle Paz
6/26/21
PHYS 1403
INTRODUCTION
In this lab, we will explore
work
as well as
energy with a spring
. Specifically, the
relationship
between the
work stored in the spring
, and the
velocity at which the
spring can launch an object
. To learn this, in this experimental video, we use a spring
that launches a cart from three different points of view:
entire event, release,
and
spring stretch.
We also learn about
force constant.
MATERIALS
In this lab experiment, we used the following materials:
●
Spring
●
Ruler
●
Timer
●
Cart
●
Scissors
●
String
PROCEDURE
1.
Allow the video to fully play and watch the full event (cart launched by a spring).
2.
We will be finding the relationship between the amount of work that is required
to stretch the spring and the resulting velocity. To do so, we will first select a cart
mass (choose
502 g
). Then, begin with
Spring Stretch 1
and record the distance
for which the spring is stretched before the launch using the spring stretch ruler
(
8 cm
). *
Make sure the point of view is on spring stretch.
3.
Because we are trying to also find velocity, we will record the time. To do this, we
will simply change the point of view to
release
. In addition, change to the ruler
that states, “
the ruler calibrates to measure cart motion
”. Then, pause the video
once the string is cut, place the ruler above the green dot, and allow the cart to
move until it reaches the end of the 30 cm. While this occurs, record the time
(make sure to reset the timer after the string has been cut and stop it once it has
reached 30 cm). *The time you should end with is
0.800000 sec
4.
You will continue until you have collected a total of 5 data points each for the
stretch options 1-5. You will collect this data using the same steps as above.
Force Constant
1.
You will be performing another experiment to determine the
force constant
of
the spring. While using the spring you will also use disks each having a mass of
100g. For each of the 5 disks, you will record the number of centimeters that each
spring stretches. First, begin by placing the ruler before the spring has moved.
2.
Next, allow the spring to stretch with one disk. Record your measurement (
3.5
cm
).
3.
Continue using the same steps until you have recorded all 5 disks.
Your preview ends here
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Related Questions
ECO
5. AUTOMOTIVE. The power an
engine produces is called
horsepower. In mathematical
terms, one horsepower is the
power needed to move 550
pounds one foot in one
second, or the power needed
to move 33,000 pounds one
foot in one minute. Power, in
physics, is defined simply as
the rate of doing work. The
formula below gives the
horsepower at 5,252 radians
per second.
https://philkotse.com/toyota-corona-ior-sale-in-baguio/1991-for-sale-in-aid7017151
625T
1313
where H is the horsepower and T is the torque
a. Find the inverse of the model.
b. If a taxi produces a horsepower of 200, what is the torque it generates?
Solve here:
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