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RELTIONSHIP BETWEEN WORK AND KINETIC ENERGY
Introduction In this experiment you will watch three videos to verify the work kinetic
energy theorem. The work -kinetic energy theorem states:
Equipment
Computer simulations
Experiment Part Constant Force Parallel tothe Block' Velocity
Open the video a the following link. You may click the link if you are
viewing this lab online
https://youtu.be/XSdUb-wdyRk
The videoi of lkgblock that being pushed across frictionless
surface tothe block velocity. force
(in Newtons) position graph appears below simulation
A kinetic energy (in Joules) v position (in meters) graph also plotted
for
the motion
Be aware that the simulation plays very rapidly. Click the pause button so
that you time to read the graphs while answering the following
questions
Q1.1
Whatis the block?
Q1.2
Describe. words how you would use the force vs. position graph in the
simulation obtain value work donc or the block after the block
has moved given distance specific! Simply saying graph'
is no sufficient! Indicate what aspect graph you must read.
Q1.3
Describe, words how use the kinetic energy vs. position
graph the kinetic energy block
after the block has distance. Again be
02020by Mark D.Somers
Page l
Q1.4
Choose a distance and use the procedure you described in question Ql.2 to
determine the work done the block
Q1.5
What distance did you choose when you determined the work in Q1.4?
Q1.6
Use the procedure you described in question 1.3 to determine the change
in kinetic energy block when the block travels the distance that you
chose question 1.4.
Q1.7
How do your answers questions 1.4 and 1.6 compare? What can you
conclude?
02020by Mark D Somers
Mesa Community College
Mesa, Arizoma 85202
Experiment Part : Non Constant Force Parallel to the Block's Velocity
Open the video a the following link. You may click the link you are
viewing this lab online
https://youtu.be/U74-30gK4rU
The video is of lkgblock that being pushed across frictionless
surface b non- constant force that is paralled to theblock velocity
A
force (in Newtons) position (in meters) graph appears below the
simulation kinetic energy (in Joules) position (in meters) graph
is
the
Q2.1
Choose a you described in question Q1.2 to
determine the work the block. Show your work.
Q2.2
What distance did you choose when you determined the work in 02.17
Q2.3
Use the procedure you question 1.3 to determine the change
in kinetic energy ofthe block when the block travels the distance that you
chose question 2.1. Show your work
Q2.4
How do your answers questions 2.1 and 2. 3compare? What can you
conclude?
02020by Mark Somers
Page 3
Mesa,
Arizoma
85202
Experiment Part -Constant Force that not Parallel to the Block's Velocity
Open the may click he link you are
viewing
The video is that across frictionless
the block 's velocity
A
force (in
graph
appears
below
force
blue
in red
the
bottom
line)
and the top line). kinetic
energy (in position (in graph also plotted for the
motion
Q3.1
Choose use the described in question Q1. to
determine the work done the Which force did you use? Show
your work
Q3.2
What distance did choose when you determined the work
Q3.3
Use you described question 3to determine the change
in kinetic energy of the block when the block travels the distance that you
chose question 3.1. Show your work
Q3.4
How compare?
conclude?
02020by

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RELATIONSHIP BETWEEN WORK AND KINETIC ENERGY

Introduction: In this experiment you will watch three videos to verify the work-kinetic energy theorem. The work-kinetic energy theorem states:

W = ΔK = 1/2 mvf2 − 1/2 mvo2

Equipment: Computer simulations.

Experiment Part 1 – Constant Force Parallel to the Block’s Velocity

The video is of a 1kg block that is being pushed across a frictionless surface by a constant force that is parallel to the block’s velocity. A force (in Newtons) vs. position (in meters) graph appears below the simulation. A kinetic energy (in Joules) vs. position (in meters) graph is also plotted for the motion. Be aware that the simulation plays very rapidly. Click the pause button so that you have time to read the graphs while answering the following questions.

Q1.1 What is the magnitude of the force acting on the block?

10 N

Q1.2 Describe, in words, how you would use the force vs. position graph in the simulation to obtain a value for the work done on the block after the block has moved a given distance. Be specific! Simply saying “read the graph” is not sufficient! Indicate what aspect of the graph you must read.

Work done by force acting on the block can be determined by calculating the area covered by force vs. position graph at the considered position.

The x axis of the force vs. position graph gives...