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Demonstrate Gravitational Forces on A Mass on An Incline Worksheet
1- About this module
in this module you will investigate the relationship between a mass on an incline and the gravitation ...
Demonstrate Gravitational Forces on A Mass on An Incline Worksheet
1- About this module
in this module you will investigate the relationship between a mass on an incline and the gravitational field. Students will also examine friction of a mass/inline interface. The student will:
Demonstrate gravitational forces on a mass on an incline.
Develop formulas describing the motion.
Investigate forces of friction on an incline.
2- Instructions on viewing demonstrations
When viewing the demonstrations, note the variables. Identify the random error one would encounter in performing the experiment. Look back at what you have learned so far and see what applies here.
Note: Later in your analysis, you will need to refer to these observations.
3- Incline demonstration
You have to watch the video about the physics lab experiment. The video is only thirty seconds long. (Just 30 seconds)
Also, I provided the link for this video to watch it, just click the link then download the video to watch it.
(Video)
https://we.tl/t-Op561tw64Z
4- Prediction instructions
After observing the video demonstration, make a prediction of the relationship between the angle of the incline and the acceleration of the rolling smart car. Keep your prediction handy. Submit it with your final upload. You can attach it to your final spreadsheet upload on a separate tab as a JPEG. Make your prediction in he form of a graph (just draw it on paper and take a picture).
Note: You will not be counted off by being wrong. We just want to see the predictions of our students before the lab. Full credit will be provided with inclusion.
5- Analysis instructions-3
The Excel file attached here contains velocity vs. time data for five angles. For each data set, you are to run a LINEST and determine the slope and the uncertainty in the slope (see previous instructions on LINEST in Excel analysis module). Note: Each data set is in the tab named for the angle that was used (6.0, 7.5, 9.0, 10.0, 10.4). You don't have to graph the velocity vs. time graphs for presentation. But, you should take a look at a quick graph to observe if there is a linear relationship. Run a LINEST on each data tab with velocity being dependent and time being independent. You will use these slopes for the "acceleration" tab.
According to a simple analysis of a smart car rolling down the incline, assuming friction is negligible, the equation for the acceleration is written as
ax=gsin?. Recall that the velocity as a function of time equation for constant acceleration (here we are assigning the x-direction as being along the inline plane) is written as vx=v0x+axt. Thus, the slope of each of your LINEST results is the constant acceleration for that particular angle.
1. On the next tab, which is called "acceleration", label column A as angle (cell A1), column B as sin?, and column C as acceleration (the slope of each of the velocity vs. time graphs for each angle. Do not include the uncertainty in this column input).
2. In column A, the angle is in degrees. But, we need radians. So in cell B2, type "=A2*(3.14/180)". Don't include the quotes of course. Copy the formula down. Here we just utilized the small angle approximation sin???.
3. Plot acceleration vs. angle and make a nice, formatted graph. Think back to your prediction and make a note of your recollections. Run a LINEST and determine the slope AND the uncertainty. Is this what you expected? Record the slope and the uncertainty along with its units clearly on the page. You can insert a textbox and type this into the textbox.
4. Take a moment and reflect on everything you have done up to this point. Make notes and ask the TA questions if you are not sure what you have done to this point. Save your file for a later upload. You will use the friction and summary tab later.
(I uploaded the excel file and has some data and you have to fill in the data and make what it says in all instructions).
6- Friction demonstration
You have to watch the video about the physics lab experiment. The video is only thirty five seconds long. (Just 35 seconds)
Also, I provided the link for this video to watch it, just click the link then download the video to watch it.
(video)
https://we.tl/t-eqw6rdXng1
7- Friction analysis instructions
After viewing the demonstrations of the incline, you will do a simple examination of friction at home.
1. Obtain a uniform inline plane (a clipboard with paper, a cardboard piece from a box,..). This is any surface with uniform conditions and shaped to where you can adjust the angle and take measurements from observations.
2. Obtain three (different) uniform objects (coins, blocks,...) with slightly different surfaces of "roughness". Take pictures of these objects and of your incline.
Open up your spreadsheet. Go now to the friction tab. You have three objects for which you are providing measurements to obtain the coefficient of static friction. I would use columns A, B, and C for object 1. E, F, and G for object 2, and so forth. Your measurements of height and base can be placed in the first two columns for each object section, and the value of the ratio (static friction) in the third row. When all of that is done, place the picture of that object on the incline underneath each data set. But, if you have a better way to organize, feel free!!
But, take the time to organize!
3. For each item, place at the top of your incline, start at zero angle, and then slowly raise until you (just) see it slip. Record this height (see below). Do this several times for each object to get an average height for best results. In the apreadsheet, you should, for scientific honesty and integrity, record all trials to obtain the average.
4. To determine the angle, use the right-triangle analysis (unless you have an angle indicator): tan?=heightbase. The "base" is a measure of the length of the incline (lay flat down and measure the length of the incline).
5. The coefficient of static friction is defined as:
?s=tan?. Therefore, find the ratio with the height and base to determine this (average) coefficient for each object on the same incline.
Start each object from the same place for consistency.
6. Clearly indicate what the average coefficient for each interface (object/incline) is on the spreadsheet. Indicate this in each object section of the spreadsheet or in a singular textbox with labels.
Note: For a smart car, it is rolling. But, you are still getting an idea of friction by doing this exercise.
8- Final instructions
Putting it all together, address the following questions in the summary portion of your spreadsheet:
1. List all random errors associated with the incline demonstration. If you were doing the experiment, minus anything to do with the software or embedded sensors in the smartcar, which random errors can you identify?
2. Do the same thing for your experiment with your own incline. List all random errors associated with your data collection. Make sure to list again what your average values are for each interface. Note: Mentioning the observed "roughness" for each object would help make sense of the numbers.
3. Based on your final value of the slope AND the uncertainty of the acceleration vs. angle analysis, which should be g, is the result reasonable taking into account all random error?
4. Following up on number 3, was it acceptable to neglect friction based on all of your results and observations? Explain.
Howard Community College Urinalysis Case Study Discussion
All references must be cited, and direct quotes from the references must be indicated as such, using quotation marks.Pleas ...
Howard Community College Urinalysis Case Study Discussion
All references must be cited, and direct quotes from the references must be indicated as such, using quotation marks.Please refer to book titled " Human Anatomy & Physiology" by Elaine N. Marieb
Follow the file to answer question
There are two activities in my file. And please answer these respectively. Submit electronically via Canvas (.doc, .docx, ...
Follow the file to answer question
There are two activities in my file. And please answer these respectively. Submit electronically via Canvas (.doc, .docx, or .pdf file format). Please show your work!
Please answer all questions in complete sentences.
Use three to five sentences to answer questions
HSC 300 Stratford University Public Health Biology Paper
TaskundefinedFirst, Read about Disease Processes in the Human Bodyundefinedhttp://www.cdc.gov/ophss/csels/dsepd/ss1978/le ...
HSC 300 Stratford University Public Health Biology Paper
TaskundefinedFirst, Read about Disease Processes in the Human Bodyundefinedhttp://www.cdc.gov/ophss/csels/dsepd/ss1978/lesson1/section9.html undefinedSecond, Read about the chain of infection https://www.cdc.gov/ophss/csels/dsepd/ss1978/lesson1/section10.html undefinedThird, Investigate the principles of vaccinationundefinedhttps://www.cdc.gov/vaccines/pubs/pinkbook/prinvac.html(also available as pdf in Important Documents)undefinedAssignment:undefinedDescribe the progression of the common cold, from infection to resolution, using a graphic to describe each step. undefinedLessonundefinedundefinedActivity 1: Herd Immunity Video and Discussion undefinedTogether watch the video, Vaccines – Calling the Shots – Herd Immunity http://www.pbslearningmedia.org/resource/nvvs-sci-herdimmune/herd-immunity/ undefinedDiscuss as a group, what is meant by Herd Immunity and what effect the level of vaccination can have.undefinedActivity 2: Simulated Herd Immunity (instruction on site)undefinedTogether with the instructor’s lead, simulate herd immunity where there is 90% vaccination rate.Then repeat for vaccination rates of 50, 75, 95%. undefinedDid the number of infected people change based on the vaccination rate?What does this mean for the health of a population? What are the risks of low vaccination rates?undefinedActivity 3: How to decrease spread of infection PosterundefinedTogether (or individually) based on what you know about the spread of infection, make a poster to quickly and graphically teach people how to decrease the spread of infection.
CSS Hess Law Heat Capacity Molar Heat Specific Heat & DHreaction Lab Report
Introduction:Hess’s Law states that the energy change for a reaction depends on the enthalpy of the reactants and produc ...
CSS Hess Law Heat Capacity Molar Heat Specific Heat & DHreaction Lab Report
Introduction:Hess’s Law states that the energy change for a reaction depends on the enthalpy of the reactants and products and is independent of the pathway of the reaction. In this experiment, you will use calorimetry to measure the heats of reaction for three reactions. The enthalpy of the third reaction will be found directly through experimentation and by applying Hess’s Law. You will compare these two values to evaluate Hess’s Law. In this experiment you will determine and compare the quantity of heat energy released in three exothermic chemical reactions. Sodium hydroxide will be the limiting reactant in all cases.Reaction 1: Solid sodium hydroxide dissolves in water to form an aqueous solution of ions.NaOH(s) → Na+(aq) + OH-(aq)Reaction 2: Solid sodium hydroxide reacts with an aqueous solution of hydrogen chloride to form water and an aqueous solution of sodium chloride.NaOH(s) + H+(aq) + Cl-(aq) → H2O(l) + Na+(aq) + Cl-(aq)Reaction 3: An aqueous solution of sodium hydroxide reacts with an aqueous solution of hydrogen chloride to form water and an aqueous solution of sodium chloride.Na+(aq) + OH-(aq) + H+(aq) + Cl-(aq) → H2O(l) + Na+(aq) + Cl-(aq)In order to accurately measure the heat released in each reaction, we will be using a calorimeter. (For this experiment a styrofoam cup will act as the calorimeter). The change in temperature that occurs for each reaction will be used to calculate the energy released in kilojoules per mole of sodium hydroxide used (molar enthalpy). For the calculations in this experiment, we will assume that any heat transferred to the styrofoam and surrounding air will be negligible. We can also assume that the specific heat of water or aqueous solutions is 4.18 J/g°C. We will also assume that water or aqueous solutions used have a density of 1g/mL.Observations:Reaction #NaOHInitial Temperature (°C)Final Temperature (°C)Total Volume (mL)11.00g25.030.350.021.00g25.037.050.0325.0mL of 1.00 mol/L NaOH25.031.750.0Conclusions:1. For each of the three reactions, calculate the heat released/absorbed (q), and the molar heat of reaction (DHreaction). Show all work.2. With Hess’s Law, show how the first two chemical reactions can be used to form the third reaction. Use this, and the molar enthalpies from the first two experiments, to find the molar enthalpy for the third reaction.3. Do the results from Q#2 confirm Hess’s Law?4. Suppose you had used 4.00 grams of NaOH(s) in Reaction 1. How would the amount of heat released be affected? What effect would it have had on the molar enthalpy for Reaction 1?
5 pages
Question C.edited.edited
The registration of pesticides involves a review of certain factors by an administrator to determine if they are true. The ...
Question C.edited.edited
The registration of pesticides involves a review of certain factors by an administrator to determine if they are true. They include the composition of ...
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Demonstrate Gravitational Forces on A Mass on An Incline Worksheet
1- About this module
in this module you will investigate the relationship between a mass on an incline and the gravitation ...
Demonstrate Gravitational Forces on A Mass on An Incline Worksheet
1- About this module
in this module you will investigate the relationship between a mass on an incline and the gravitational field. Students will also examine friction of a mass/inline interface. The student will:
Demonstrate gravitational forces on a mass on an incline.
Develop formulas describing the motion.
Investigate forces of friction on an incline.
2- Instructions on viewing demonstrations
When viewing the demonstrations, note the variables. Identify the random error one would encounter in performing the experiment. Look back at what you have learned so far and see what applies here.
Note: Later in your analysis, you will need to refer to these observations.
3- Incline demonstration
You have to watch the video about the physics lab experiment. The video is only thirty seconds long. (Just 30 seconds)
Also, I provided the link for this video to watch it, just click the link then download the video to watch it.
(Video)
https://we.tl/t-Op561tw64Z
4- Prediction instructions
After observing the video demonstration, make a prediction of the relationship between the angle of the incline and the acceleration of the rolling smart car. Keep your prediction handy. Submit it with your final upload. You can attach it to your final spreadsheet upload on a separate tab as a JPEG. Make your prediction in he form of a graph (just draw it on paper and take a picture).
Note: You will not be counted off by being wrong. We just want to see the predictions of our students before the lab. Full credit will be provided with inclusion.
5- Analysis instructions-3
The Excel file attached here contains velocity vs. time data for five angles. For each data set, you are to run a LINEST and determine the slope and the uncertainty in the slope (see previous instructions on LINEST in Excel analysis module). Note: Each data set is in the tab named for the angle that was used (6.0, 7.5, 9.0, 10.0, 10.4). You don't have to graph the velocity vs. time graphs for presentation. But, you should take a look at a quick graph to observe if there is a linear relationship. Run a LINEST on each data tab with velocity being dependent and time being independent. You will use these slopes for the "acceleration" tab.
According to a simple analysis of a smart car rolling down the incline, assuming friction is negligible, the equation for the acceleration is written as
ax=gsin?. Recall that the velocity as a function of time equation for constant acceleration (here we are assigning the x-direction as being along the inline plane) is written as vx=v0x+axt. Thus, the slope of each of your LINEST results is the constant acceleration for that particular angle.
1. On the next tab, which is called "acceleration", label column A as angle (cell A1), column B as sin?, and column C as acceleration (the slope of each of the velocity vs. time graphs for each angle. Do not include the uncertainty in this column input).
2. In column A, the angle is in degrees. But, we need radians. So in cell B2, type "=A2*(3.14/180)". Don't include the quotes of course. Copy the formula down. Here we just utilized the small angle approximation sin???.
3. Plot acceleration vs. angle and make a nice, formatted graph. Think back to your prediction and make a note of your recollections. Run a LINEST and determine the slope AND the uncertainty. Is this what you expected? Record the slope and the uncertainty along with its units clearly on the page. You can insert a textbox and type this into the textbox.
4. Take a moment and reflect on everything you have done up to this point. Make notes and ask the TA questions if you are not sure what you have done to this point. Save your file for a later upload. You will use the friction and summary tab later.
(I uploaded the excel file and has some data and you have to fill in the data and make what it says in all instructions).
6- Friction demonstration
You have to watch the video about the physics lab experiment. The video is only thirty five seconds long. (Just 35 seconds)
Also, I provided the link for this video to watch it, just click the link then download the video to watch it.
(video)
https://we.tl/t-eqw6rdXng1
7- Friction analysis instructions
After viewing the demonstrations of the incline, you will do a simple examination of friction at home.
1. Obtain a uniform inline plane (a clipboard with paper, a cardboard piece from a box,..). This is any surface with uniform conditions and shaped to where you can adjust the angle and take measurements from observations.
2. Obtain three (different) uniform objects (coins, blocks,...) with slightly different surfaces of "roughness". Take pictures of these objects and of your incline.
Open up your spreadsheet. Go now to the friction tab. You have three objects for which you are providing measurements to obtain the coefficient of static friction. I would use columns A, B, and C for object 1. E, F, and G for object 2, and so forth. Your measurements of height and base can be placed in the first two columns for each object section, and the value of the ratio (static friction) in the third row. When all of that is done, place the picture of that object on the incline underneath each data set. But, if you have a better way to organize, feel free!!
But, take the time to organize!
3. For each item, place at the top of your incline, start at zero angle, and then slowly raise until you (just) see it slip. Record this height (see below). Do this several times for each object to get an average height for best results. In the apreadsheet, you should, for scientific honesty and integrity, record all trials to obtain the average.
4. To determine the angle, use the right-triangle analysis (unless you have an angle indicator): tan?=heightbase. The "base" is a measure of the length of the incline (lay flat down and measure the length of the incline).
5. The coefficient of static friction is defined as:
?s=tan?. Therefore, find the ratio with the height and base to determine this (average) coefficient for each object on the same incline.
Start each object from the same place for consistency.
6. Clearly indicate what the average coefficient for each interface (object/incline) is on the spreadsheet. Indicate this in each object section of the spreadsheet or in a singular textbox with labels.
Note: For a smart car, it is rolling. But, you are still getting an idea of friction by doing this exercise.
8- Final instructions
Putting it all together, address the following questions in the summary portion of your spreadsheet:
1. List all random errors associated with the incline demonstration. If you were doing the experiment, minus anything to do with the software or embedded sensors in the smartcar, which random errors can you identify?
2. Do the same thing for your experiment with your own incline. List all random errors associated with your data collection. Make sure to list again what your average values are for each interface. Note: Mentioning the observed "roughness" for each object would help make sense of the numbers.
3. Based on your final value of the slope AND the uncertainty of the acceleration vs. angle analysis, which should be g, is the result reasonable taking into account all random error?
4. Following up on number 3, was it acceptable to neglect friction based on all of your results and observations? Explain.
Howard Community College Urinalysis Case Study Discussion
All references must be cited, and direct quotes from the references must be indicated as such, using quotation marks.Pleas ...
Howard Community College Urinalysis Case Study Discussion
All references must be cited, and direct quotes from the references must be indicated as such, using quotation marks.Please refer to book titled " Human Anatomy & Physiology" by Elaine N. Marieb
Follow the file to answer question
There are two activities in my file. And please answer these respectively. Submit electronically via Canvas (.doc, .docx, ...
Follow the file to answer question
There are two activities in my file. And please answer these respectively. Submit electronically via Canvas (.doc, .docx, or .pdf file format). Please show your work!
Please answer all questions in complete sentences.
Use three to five sentences to answer questions
HSC 300 Stratford University Public Health Biology Paper
TaskundefinedFirst, Read about Disease Processes in the Human Bodyundefinedhttp://www.cdc.gov/ophss/csels/dsepd/ss1978/le ...
HSC 300 Stratford University Public Health Biology Paper
TaskundefinedFirst, Read about Disease Processes in the Human Bodyundefinedhttp://www.cdc.gov/ophss/csels/dsepd/ss1978/lesson1/section9.html undefinedSecond, Read about the chain of infection https://www.cdc.gov/ophss/csels/dsepd/ss1978/lesson1/section10.html undefinedThird, Investigate the principles of vaccinationundefinedhttps://www.cdc.gov/vaccines/pubs/pinkbook/prinvac.html(also available as pdf in Important Documents)undefinedAssignment:undefinedDescribe the progression of the common cold, from infection to resolution, using a graphic to describe each step. undefinedLessonundefinedundefinedActivity 1: Herd Immunity Video and Discussion undefinedTogether watch the video, Vaccines – Calling the Shots – Herd Immunity http://www.pbslearningmedia.org/resource/nvvs-sci-herdimmune/herd-immunity/ undefinedDiscuss as a group, what is meant by Herd Immunity and what effect the level of vaccination can have.undefinedActivity 2: Simulated Herd Immunity (instruction on site)undefinedTogether with the instructor’s lead, simulate herd immunity where there is 90% vaccination rate.Then repeat for vaccination rates of 50, 75, 95%. undefinedDid the number of infected people change based on the vaccination rate?What does this mean for the health of a population? What are the risks of low vaccination rates?undefinedActivity 3: How to decrease spread of infection PosterundefinedTogether (or individually) based on what you know about the spread of infection, make a poster to quickly and graphically teach people how to decrease the spread of infection.
CSS Hess Law Heat Capacity Molar Heat Specific Heat & DHreaction Lab Report
Introduction:Hess’s Law states that the energy change for a reaction depends on the enthalpy of the reactants and produc ...
CSS Hess Law Heat Capacity Molar Heat Specific Heat & DHreaction Lab Report
Introduction:Hess’s Law states that the energy change for a reaction depends on the enthalpy of the reactants and products and is independent of the pathway of the reaction. In this experiment, you will use calorimetry to measure the heats of reaction for three reactions. The enthalpy of the third reaction will be found directly through experimentation and by applying Hess’s Law. You will compare these two values to evaluate Hess’s Law. In this experiment you will determine and compare the quantity of heat energy released in three exothermic chemical reactions. Sodium hydroxide will be the limiting reactant in all cases.Reaction 1: Solid sodium hydroxide dissolves in water to form an aqueous solution of ions.NaOH(s) → Na+(aq) + OH-(aq)Reaction 2: Solid sodium hydroxide reacts with an aqueous solution of hydrogen chloride to form water and an aqueous solution of sodium chloride.NaOH(s) + H+(aq) + Cl-(aq) → H2O(l) + Na+(aq) + Cl-(aq)Reaction 3: An aqueous solution of sodium hydroxide reacts with an aqueous solution of hydrogen chloride to form water and an aqueous solution of sodium chloride.Na+(aq) + OH-(aq) + H+(aq) + Cl-(aq) → H2O(l) + Na+(aq) + Cl-(aq)In order to accurately measure the heat released in each reaction, we will be using a calorimeter. (For this experiment a styrofoam cup will act as the calorimeter). The change in temperature that occurs for each reaction will be used to calculate the energy released in kilojoules per mole of sodium hydroxide used (molar enthalpy). For the calculations in this experiment, we will assume that any heat transferred to the styrofoam and surrounding air will be negligible. We can also assume that the specific heat of water or aqueous solutions is 4.18 J/g°C. We will also assume that water or aqueous solutions used have a density of 1g/mL.Observations:Reaction #NaOHInitial Temperature (°C)Final Temperature (°C)Total Volume (mL)11.00g25.030.350.021.00g25.037.050.0325.0mL of 1.00 mol/L NaOH25.031.750.0Conclusions:1. For each of the three reactions, calculate the heat released/absorbed (q), and the molar heat of reaction (DHreaction). Show all work.2. With Hess’s Law, show how the first two chemical reactions can be used to form the third reaction. Use this, and the molar enthalpies from the first two experiments, to find the molar enthalpy for the third reaction.3. Do the results from Q#2 confirm Hess’s Law?4. Suppose you had used 4.00 grams of NaOH(s) in Reaction 1. How would the amount of heat released be affected? What effect would it have had on the molar enthalpy for Reaction 1?
5 pages
Question C.edited.edited
The registration of pesticides involves a review of certain factors by an administrator to determine if they are true. The ...
Question C.edited.edited
The registration of pesticides involves a review of certain factors by an administrator to determine if they are true. They include the composition of ...
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