Qualitative Description of Your Rube Goldberg Device
Order ID 53563633773 Type Essay Writer Level Masters Style APA Sources/References 4 Perfect Number of Pages to Order 5-10 Pages Description/Paper Instructions
Qualitative Description of Your Rube Goldberg Device
Running head: QUALITATIVE DESCRIPTION OF YOUR RUBE GOLDBERG DEVICE STEP 1
QUALITATIVE DESCRIPTION OF YOUR RUBE GOLDBERG DEVICE STEP 2
Qualitative Description of Your Rube Goldberg Device Step
Calvin Singh
SNHU
PHY 101: Milestone One.
Qualitative Description of Your Rube Goldberg Device Step.
- Step Selection
- Select a step or stage in the Rube Goldberg device. Provide a concise description of the step.
In this step, I will have a rubber block weighing 5kg on a table being pulled by a falling weight connected via a pulley using a chain. The rubber block rests 10cm away from the edge of the table and attains an acceleration of 3m/s^2 in 2 seconds before falling off the table’s edge. The static friction coefficient (µs) is 1.0, while the kinetic friction coefficient (µk) is 0.7.
- Selected Step A. Initial Velocity
- Calculate the initial velocity of the object in the selected step.
The initial velocity of the rubber block is 0m/s. This is because the rubber block is resting stationary on the table. According to Newton’s first law of motion, a body at rest will stay at rest until a net external force acts on it (Suleiman, 2018). In the setup, the net external force due to the falling weight that will overcome the friction force between the rubber block and the surface of the table
- What does the initial velocity of the object tell you about the behavior of the object?
The 0m/s velocity implies that the rubber block remains in a state of inertia until the net force due to the falling weight causes it to move. When the falling weight pulls the rubber block, the rubber block simultaneously pulls the falling weight. These forces are opposite in direction and equal in size.
Selected step B. Velocity and Force Calculations
- Calculate the change in velocity that would be observed based on kinematics and force principles.
Change in velocity = Final velocity – Initial velocity.
Final velocity = displacement / time.
Final velocity = 10 cm / 2 seconds = 5cm/s =0.05m/s.
Change in velocity = 0.05m/s.
- Then, use Newton’s Second Law to calculate the force acting on the object.
Newton’s second states that the acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object (Roeder, 2017).
F = ma.
In the set-up, the force that causes the rubber block to accelerate towards the table’s edge, ma is equal to the force due to the weight of the falling weight, mg. These forces are equal in size and exert in the opposite direction.
F = ma = mg = 5kg × 3m/s^2 = 15N.
Considering the effects of static and kinetic friction,
Static friction, Ff max = µsF =1.0 × 15 = 15N.
Kinetic friction, Ff = µkF =0.7 × 15 = 10.5N
References.
Roeder, J. L. (2017). More on deriving Newton’s second law. The Physics Teacher, 55(7), 388-388.
Suleiman, R. (2018). Newton’s First Law revisited. Journal of Modern Physics.
RUBRIC
QUALITY OF RESPONSE NO RESPONSE POOR / UNSATISFACTORY SATISFACTORY GOOD EXCELLENT Content (worth a maximum of 50% of the total points) Zero points: Student failed to submit the final paper. 20 points out of 50: The essay illustrates poor understanding of the relevant material by failing to address or incorrectly addressing the relevant content; failing to identify or inaccurately explaining/defining key concepts/ideas; ignoring or incorrectly explaining key points/claims and the reasoning behind them; and/or incorrectly or inappropriately using terminology; and elements of the response are lacking. 30 points out of 50: The essay illustrates a rudimentary understanding of the relevant material by mentioning but not full explaining the relevant content; identifying some of the key concepts/ideas though failing to fully or accurately explain many of them; using terminology, though sometimes inaccurately or inappropriately; and/or incorporating some key claims/points but failing to explain the reasoning behind them or doing so inaccurately. Elements of the required response may also be lacking. 40 points out of 50: The essay illustrates solid understanding of the relevant material by correctly addressing most of the relevant content; identifying and explaining most of the key concepts/ideas; using correct terminology; explaining the reasoning behind most of the key points/claims; and/or where necessary or useful, substantiating some points with accurate examples. The answer is complete. 50 points: The essay illustrates exemplary understanding of the relevant material by thoroughly and correctly addressing the relevant content; identifying and explaining all of the key concepts/ideas; using correct terminology explaining the reasoning behind key points/claims and substantiating, as necessary/useful, points with several accurate and illuminating examples. No aspects of the required answer are missing. Use of Sources (worth a maximum of 20% of the total points). Zero points: Student failed to include citations and/or references. Or the student failed to submit a final paper. 5 out 20 points: Sources are seldom cited to support statements and/or format of citations are not recognizable as APA 6th Edition format. There are major errors in the formation of the references and citations. And/or there is a major reliance on highly questionable. The Student fails to provide an adequate synthesis of research collected for the paper. 10 out 20 points: References to scholarly sources are occasionally given; many statements seem unsubstantiated. Frequent errors in APA 6th Edition format, leaving the reader confused about the source of the information. There are significant errors of the formation in the references and citations. And/or there is a significant use of highly questionable sources. 15 out 20 points: Credible Scholarly sources are used effectively support claims and are, for the most part, clear and fairly represented. APA 6th Edition is used with only a few minor errors. There are minor errors in reference and/or citations. And/or there is some use of questionable sources. 20 points: Credible scholarly sources are used to give compelling evidence to support claims and are clearly and fairly represented. APA 6th Edition format is used accurately and consistently. The student uses above the maximum required references in the development of the assignment. 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