Now let’s determine how the force required to start moving a stationary object compares to the force to keep an object moving. Our problem statement is this:” Is the force required to move an object from rest different from the force required to keep an object moving?”
21 comments:
Problem Statement: Is the force required to move an object from rest different from the force required to keep an object moving?
Objective: The main focus of this lab is to determine if the force required to move an object from rest is different from the force that is required to move an object continuously.
Hypothesis: I hypothesized that the force required to move the cart from rest is greater than the force required to keep the cart moving because starting the cart from rest is the initial or first time the cart is moving, which would cause the external force that is moving the cart to exert more force.
Materials: When conducting this experiment, I used a number of different materials such as a wooden plank, a small cart, a ruler, and the site, the table, a piece of string about 8" (inches) long, a 200 gram mass used to weigh down the cart, and a spring scale.
Procedure:
I had to tie one end of the string to the front of the cart and tie a loop in the free end of the string.
I then had to put the 200 gram mass into the cart.
I had to zero the spring scale and attach the hook from the spring scale to the loop on the string.
I had to tug on the spring scale several to start the cart.
I had to jerk on the spring scale several times rapidly to keep the cart moving.
I had to pull the cart across the table at a constant speed several times.
I collected my data and continued the experiment for nine trials.
Data: The data table and the graph are at the top of the lab. The data that I compiled shows the information that received while conducting the experiment. It shows the number of trials I completed, the amount of newtons, and the amount of grams the cart weighed when i tugged, jerked, and keep it at a constant speed. The picture (adjacent to data table about), is a graph that displays the newtons verses the grams. The graph is a scatter plot to show that some of the numbers are repetitious.
Conclusion: My hypothesis was incorrect. I predicted that the force required to initially move an object from rest would be greater than the force that is required to keep that object moving. In actuality, it took a minuscule amount of force to start the cart. During the first three trials,(trials 1through 3), I had to tug on the cart. When I examined the amount of force that was exerted, I concluded that to start an object from rest, it does not take a large amount of force because it is the first time, the initial time, that that object is moving On the next three trials,(trials 4 through 6), I had to jerk the cart in order to keep it moving. It took more force to keep the cart moving because if there was a small amount of force that would have been exerted, the car would barely move. During the last three trials,(trials 7 through 9), I had to move the cart at a constant rate. Moving the cart at a constant took a small amount of force because all I had to do was keep the cart moving and not try to stop it or start it up again.
During this lab, I learned that in order to start an object from rest, it would most likely take a minuscule amount of force,(depending on the size and weight of the object). I would not change any component of my lab because I feel that everything is accurate.
The purpose of this lab can be used in a practical application. When a car construction company develops a new car, before they can make more and begin to sell them, they have to make sure that every component of the car fits the safety requirements. When doing this, they have to make sure the when the buyer starts and brakes the car they do not exert too much force that may cause the car to tip over or cause any damage.
State The Problem: Do objects at rest really remain at rest unless acted uopn by external forces.
Objective: The reason for this lab is to find out if the force required to move an object from rest is the different from the force that is required to move an object constantly.
Hypothesis: I predicted that if the ramp is pulled the cart will not flip over or fall, it will move back. It will remain in the same position it was in the beginning.
Materials: While doing this experiment, I used many materials such as a ruler, a cart, wood plank, a 8"(inch)long piece of string, a 200 gram mass used to apply pressure to the cart, and a spring scale.
Procedure: 1.Tie one end of the 8" piece of string to the cart and tie a loop in the free end of the string.
2. Place the 200 grams mass into the cart.
3.Zero the spring scale and attach the hook from the spring scale to the loop of the scale.
4.Tug on the spring scale several times to start the cart.
5.Jerk on the spring scale several times rapidly to the cart moving.
6.Pull the cart across the across the table at a constant speed several times.
7. Recored the data and did it over and over until the experiment was completed.
Data:I made a graph that showed what happened while pulling the ramp from under the cart on the y- axis was the time and on the x-axis was the observations. My data shows all of the trails I did, the amount of grams the cart weighed,and how the cart reacted after being jerked and tugged.
Conclusion: The lab was pretty much easy. I had to learn to use a critical eye when measuring and make sure I was accurate. I learned alot from the experiment like newton's laws and how the force is different when a object's at rest rather than at constant speed.
Objective – Is to determine the amount of force required to move an object from rest and how it is different from the force required to keep an object moving.
Procedure – it’s really simple…your just pushing the cart that you used in experiment 1 only your adding a 200 gram weight to it and tying a string that will be connected to the cart and the spring balancer with will be used to measure the force used to find out if the force required to move the cart from rest is the same, less than, or greater than the force required to keep the cart moving.
My hypothesis – my hypothesis is that the force you add to the object the harder and faster the speed will climb so in this case I believe that the force will not stay the same due the amount of force given.
Data
Trial 1 – 2.5 neutrons & 250 grams
Trail 2 – 0.5 neutrons & 50 grams
Trail 3 – 1.8 neutrons & 180 grams
Trail 4 – 2 neutrons & 200 grams
Trail 5 – 1.4 neutrons & 140 grams
Trail 6 – 1.9 neutrons & 190 grams
Trail 7- 0.5 neutrons & 50 grams
Results
My hypothesis was sort of correct but it wasn’t accurate due to the fact that you had to add more force to keep the object. Newton’s law for a body at rest goes along with the experiment and the data and the hypothesis.
Conclusion
In my experiment I learned that for certain objects it requires a certain amount of force to move. Also what I would change would to add more weight to it just to get some higher measurements I would also compare this to real world life situations like using a airplane or a car.
Experiment 2
My Hypothesis: I think it will be more force will be applied by start rather then more force will be applied by the constant speed.
Operation Tug
Trial Observation
1 08.n/50g
2 1.3n/130g
3 2n/200g
4 2.3n/230g
Operation Jerk
Trial Observation
1 0.5n/50g
2 0.5n/50g
3 1.5n/150g
Operation Pull
Trial Start Constant
1 50g/0.5n 25g/0.3n
2 100g/1n 50g/0.5n
Answers to number 8
1. I really believe it took more force to start then to be a constant speed.
2. My hypothesis was correct. It did take more force to start then to keep it going.
3.Yes, Newton’s first law for a body at rest.
Objective:The reason for the lab is to see if the force required to move a object from rest different from the force that is to move repeadely.
Hypothesis:The cart would move at each jerk but will still be on board.
Materials:small cart,ruler,table,srtin about 8inch,200 gram mass used to weigh the cart and a spring scale.
Procedure:
I tied one end of the string to the front of the cart and I tied a loop in the free end of the string.
1. The cart came off hit the table and move just a bit but came back to rest.
2. No our hypothesis was incorrect.
3.Yes it did.
Jerk 1: Cart came off but move a little bit.
Jerk 2: Cart came off but didn't move as much.
Jerk 3: Same as jerk 2.
Jerk 4: Samw as jerk 2.
Tug 1- 0.3
Tug 2- 0.5
The constant speed I went at was
.0.5 fastest speed was 1.0
Hypothesis- was force is greater that it's moving fast then the force moving at a constant speed.
The one that took the most force was the one that keeps cart moving.
Moving quickly keeps object moving.
Yes it follows Newton's first law for a body at rest.
Conclusion:I learned that working with a group is hard in a way because you have to share the work. Everything has to be equal i also learned that my hypothesis was in correct so I need to pay more attention to what I predict. You could use this in real world life because if yo ever want to load a truck or just put weight on anything. You can use this experiment to make sure it's the right weight. If i could change my hypothesis I would to make it correct.
Group Members:Marlene,Alicia,Charles
Latisha Thomas
Experiment 2
Does objects at rest remain at rest?
Objective:The main reason of this lab was to figure out if an object from rest would be the same or would it be diffrent from the force that is required to move an object constantly.
Hypothesis:I predicted that the force you put into moving the object from rest to greater is required more force then to keep the cart from moving.
Materials:
1-A spring
2-A cart
3-A Lumber Wood
4-A 8in string
5-A ruler
6-A 200(g)grams weight
Procedure:First we had ro tie the 8in string onto the front of the cart and then we had to tie a loop at the end of the string.
Then we had to put the 200 gram weight into the cart.
We then had to make sure the srping scale was at 0, and we then attched the hook which was on the srping scale and attched it to the loop that was on the string.
We had to tug on the spring scale to keep the cart moving.
I had to pull the cart across the table repeatedly to keep the cart going.
Data:
Tug1-30(g)
Tug2-45(g)
Tug3-85(g)
Jerk1-20(g)
Jerk2-70(g)
Jerk3-40(g)
Constant Speed-30(g)
Faster Speed-45(g)
Conclusion:My hypothesis was true. It was true because their was more force required to moving the object from rest to greater. I learned that their are diffrent a diffrent type of force to you have to use.It all depends on the object.
My Observation: The force was more when it started off. As the speed was constant, so was grams.
Objective: The main objective of this lab is to figure out if the force required to move an object from rest is different from the force thats required to move at a constant speed.
Materials: 200g mass, cart, string,
Lab Report 2
Objective: The objective is to learn Newton’s 2nd law of motion
Problem: Is the force required to move an object from rest different from the force required to keep an object moving.
Hypothesis: I think the force for an object moving is greater than the object from rest required because to push something you need a lot of force and to pull you need least force.
Materials: 1. 8’ string
2. 200 g mass
3. Cart
4. Spring scale
Procedure: 1. I had to tie one end of the string to the front of the cart and tie a loop in the free end of the string.
2. I then had to put the 200 gram mass into the cart.
3. I had to zero the spring scale and attach the hook from the spring scale to the loop on the string.
4. I had to tug on the spring scale several to start the cart.
5. I had to jerk on the spring scale several times rapidly to keep the cart moving.
6. I had to pull the cart across the table at a constant speed several times.
7. I collected my data and continued the experiment for nine trials.
Data: Trail 1- Newton .5 & Grams 50 g
Trail 2- Newton .5 & Grams 50 g
Trail 3- Newton .5 & Grams 50 g
Trail 4- Newton 5 & Grams 500 g
Trail 5- Newton 2.5 & Grams 250 g
Trail 6- Newton 1.5 & Grams 150 g
Trail 7- Newton 1 & Grams 100 g
Trail 8- Newton .5 & Grams 50 g
Trail 9- Newton 1 & Grams 100 g
Conclusion: I think to keep and an object moving takes more force. I think that because you have to keep the object going which mean you have to push or pull the object. I think to start an object moving quickly because you need the object to move fast. My hypothesis was correct because you need more force to move an object. Yes the cart follows Newton’s first law.
Problem Statement: Is the force required to move an object from rest different from the force required to keep an object moving?
Objective: The main point of this lab is to find out if the force required to move an object from rest different from the force that is required to move an object constantly.
Hypothesis: I predicted that the force required to move the cart from rest is greater than the force required to keep the cart moving because rest is what the cart is initially at.
Materials: I used many different materials such as a cart, a spring scale, a ruler, a wood plank, a piece of 8" long string,and a 200 gram mass to apply pressure to the cart.
Procedure: 1. Take the 8" inch string and tie it to the front of the cart, then tie a loop in the free end of the string.
2.Put the 200 gram mass into the cart.
3.zero the spring scale and attach the hook from the spring scale to the loop on the string.
4.jerk on the spring scale several times constantly to keep the cart moving.
5.Pull the cart across the table at a constant speed several times.
6.Gather all data and continue the experiment for nine trials.
Data: I gathered all data required and made tables to help organize all of the information.
Conclusion: My hypothesis was pretty much incorrect.But I understand why after actually doing the experiment.
Problem Statement: Is the force required to move an object from rest different from the force required to keep an object moving?
Objective: The main point of this lab is to find out if the force required to move an object from rest different from the force that is required to move an object constantly.
Hypothesis: I predicted that the force required to move the cart from rest is greater than the force required to keep the cart moving because rest is what the cart is initially at.
Materials: I used many different materials such as a cart, a spring scale, a ruler, a wood plank, a piece of 8" long string,and a 200 gram mass to apply pressure to the cart.
Procedure: 1. Take the 8" inch string and tie it to the front of the cart, then tie a loop in the free end of the string.
2.Put the 200 gram mass into the cart.
3.zero the spring scale and attach the hook from the spring scale to the loop on the string.
4.jerk on the spring scale several times constantly to keep the cart moving.
5.Pull the cart across the table at a constant speed several times.
6.Gather all data and continue the experiment for nine trials.
Data: I gathered all data required and made tables to help organize all of the information.
Conclusion: My hypothesis was pretty much incorrect.But I understand why after actually doing the experiment.
Objectives: The objective for this lab was to address this question “Is the force required to move an object from rest different from the force required to keep an object moving?”
Materials: Ramp, String 8”, Cart, Wood, Table, 200gram Weight, Ruler
Hypothesis: I think that the force required to move the cart from greater than the cart moving.
Procedures:
1. Cut a piece of string about 8” long. Tie one end to the front of the Hall’s cart and tie a loop in the free end.
2. Put the 200 gram mass in the Hall’s cart.
3. Push the cart back and forth on the table and think about the problem statement.
4. Zero the spring scale and attach the hook on the spring scale to the spring loop on the cart.
5. Tug on the spring scale several times to start the cart moving from rest. Note and record the spring scale readings.
6. Now jerk on the spring scale several times rapidly start the cart moving from rest. Note and record the spring scale readings.
7. Finally, pull the cart across a table or floor at a constant speed several times. Note and record the spring scale reading each time. Try this step again, pulling the cart at a faster speed and record your results.
8. I had to analyze my results.
Data:
Trials Newton’s Grams
1 .5n 50g
2 .5n 50g
3 .5n 50g
4 5n 500 g
5 2.5n 250g
6 1.5n 150g
7 10n 100g
8 .5n 50g
9 1n 100g
Conclusion: My hypothesis was incorrect. I predicted that the force required to primarily moving an object from rest would be greater than the force that is required to keep that object moving. In reality, it took a very small amount of force to start the cart.
Experiment 2
My Hypothesis: there will be more forced applied to stat
Tug
Trial Observation
1 08.n/50g
2 1.3n/130g
3 2n/200g
4 2.3n/230g
Jerk
Trial Observation
1 0.5n/50g
2 0.5n/50g
3 1.5n/150g
Pull
Trial Start Constant
1 50g/0.5n 25g/0.3n
2 100g/1n 50g/0.5n
Number 8
1. I believe that it took more force to start then a constant speed.
2. My hypothesis was incorrect. It did not take more force to start then to keep it going.
3.Yes, Newton’s first law for a body at rest.
State The Problem: Do objects at rest really remain at rest unless acted uopn by external forces.
Objective: The reason for this lab is to find out if the force required to move an object from rest is the different from the force that is required to move an object constantly.
Hypothesis: i predicted that the force is differnt and dosent require alot of force for the object to move constantly
Materials: While doing this experiment, I used many materials such as a ruler, a cart, wood plank, a 8"(inch)long piece of string, a 200 gram mass used to apply pressure to the cart, and a spring scale.
Procedure: 1.Tie one end of the 8" piece of string to the cart and tie a loop in the free end of the string.
2. Place the 200 grams mass into the cart.
3.Zero the spring scale and attach the hook from the spring scale to the loop of the scale.
4.Tug on the spring scale several times to start the cart.
5.Jerk on the spring scale several times rapidly to the cart moving.
6.Pull the cart across the across the table at a constant speed several times.
7. Recored the data and did it over and over until the experiment was completed.
Data:I made a graph that showed what happened while pulling the ramp from under the cart on the y- axis was the time and on the x-axis was the observations. My data shows all of the trails I did, the amount of grams the cart weighed,and how the cart reacted after being jerked and tugged.
Conclusion:My hyptheies was wrong actualy it didnt do what i expected but it still made me understand a lil bit more about newtons 2nd law
State The Problem: Do objects at rest really remain at rest unless acted uopn by external forces.
Objective: The reason for this lab is to find out if the force required to move an object from rest is the different from the force that is required to move an object constantly.
Hypothesis: i predicted that the force is differnt and dosent require alot of force for the object to move constantly
Materials: While doing this experiment, I used many materials such as a ruler, a cart, wood plank, a 8"(inch)long piece of string, a 200 gram mass used to apply pressure to the cart, and a spring scale.
Procedure: 1.Tie one end of the 8" piece of string to the cart and tie a loop in the free end of the string.
2. Place the 200 grams mass into the cart.
3.Zero the spring scale and attach the hook from the spring scale to the loop of the scale.
4.Tug on the spring scale several times to start the cart.
5.Jerk on the spring scale several times rapidly to the cart moving.
6.Pull the cart across the across the table at a constant speed several times.
7. Recored the data and did it over and over until the experiment was completed.
Data:I made a graph that showed what happened while pulling the ramp from under the cart on the y- axis was the time and on the x-axis was the observations. My data shows all of the trails I did, the amount of grams the cart weighed,and how the cart reacted after being jerked and tugged.
Conclusion:My hyptheies was wrong actualy it didnt do what i expected but it still made me understand a lil bit more about newtons 2nd law
Objective:
The objective was to determine if the force required to start moving a stationary object compares to the force to keep a object moving.
Hypothesis:
I think that its less that the force required to keep the cart from moving. I think this because the cart will already be moving and it won't be at rest.
Materials:
8" STRING
200 GRAMS
SPRING SCALE
HALL CART
Procedure:
First we cut a piece of 8" string and tied a loop to one end of the hall cart then we tied s loop at the free end.
Then we put the 200 grams in the hall cart. We attached the hook scale to the cart and tugged the cart.
We did this several of times so that we could start the car from moving from rest.
The we jerked the spring scale and like 7 more times we observed and recorded the times.
Finally we pulled the cart at a constant speed another 7 times we went faster and faster and then we recorded all of our data.
Data:(TUG)
Trial one-
(N)1(G)100
Trial two-
(N) 0.6 (G)55
Trial three-
(N)0.5(G)50
Trial four-
(N)0.5 (G)50
Trial five-
(N)0.6 (G)55
Trial six-
(N)1 (G)100
Trial Seven-
(N)0.6(G)55
Trail one (Jerk)
0 0
Trial two
0 0
Trial three
0 0
Trial four
0 0
Trial five
0 0
Trial six
0 0
Trial seven
0 0
Trial one (constant speed)
0.5
50
Trial two
1.5
150
Trial three
2
200
Trial four
2.5
250
Trial five
3
300
Trial six
3.5
350
Trial seven
4
400
Conclusion:
It takes more force to start a object from moving from rest. If an object it already moving then it will take less force to move it.It takes for force to start a object moving fast because it takes n\move force and you need to build up slowly. This experiment followed newtons first law.
Hypothesis: The force is greater when moving fast then the force moving at an constant speed.
Material used: string 8", hall's cart, 200 gram mass, spring scale,
Procedure: 1. Cut a piece of string about 8" long. Tie one end tot eh front of the hall's cart and tie a loop in the free end.
2. Put the 200 gram(g) mass in the hall's cart.
3. Push the cart back and forth on the table and think about the problem statement.
4. Zero the spring scale and attach the hoook on the spring scale to the string loop on the cart.
5. Tug on the spring scale several times to start the cart moving from rest.
6. Now jerk on the spring scale several times to start the cart moving from rest.
7. Finally, pull the cart across a table or floor at a constant speed several times. Then pull the cart at a faster speed.
8. Analyze your results
Data: Our data show us an lot of information. When pull at an constand speed, the speed was .05 but pull at an fater speed the speed was 1.0. So we tug each one at an different time and got different results but the range was from .5 to 1.0.
Conclusion: To keep an object moving it took more speed. Our hypothesis was correct and yes the experiment did use Newton's first law for body at rest.
Experiment 2
Problem- Is the force required to get an object moving the same,less or more than the force reqiured to keep an object moving.
Object- The object of this lab was to prove if Newtons second law is tru or not.
Hypothsis- I think that more force is required to move an object from rest then to keep it going because to start an object moving you have to give it an extra tug more then it you were just pulling it at a constant speed.
Tug Mass
1 30g
2 45g
3 85g
Jerk Mass
1 20g
2 70g
4 40g
Constant
Test Mass
1 30g
2 30g
Faster
Test Mass
1 45g
2 45g
Materials-
String
Cart
200 gram weight
Spring Scale
Procedure- First I had to tie the string to the cart and the loop the other end ant tie it to the spring scale.
Next I had to put the weight on the cart and pull it around the table and record the progress.
Conclusin- The Chart shows that it takes more force to keep an object in motion then it does to start it.Mt hypothesis was incorrect.It does follow Newton's Second law.
Problem: Is the force required to move an object from rest different from the force required to keep an object moving?
Objective: The main idea of this lab was to see the force that is required to move an object from rest different from the force that is required to keep the object moving.
Hypothesis: I predict that that the forcce to move the car from from rest will be much more greater than the force to keep the car moving.
Materials:
1-A spring
2-A cart
3-A Lumber Wood
4-A 8in string
5-A ruler
6-A 200(g)grams weight
Procedure:
Step1-tie one end of the string to the front of the cart and tie a loop in the free end of the string.
Step2-put the 200 gram mass into the cart.
Step3-zero the spring scale and attach the hook from the spring scale to the loop on the string.
Step4-tug on the spring scale several to start the cart.
Step5-jerk on the spring scale several times rapidly to keep the cart moving.
Step6-pull the cart across the table at a constant speed several times.
Step7-collect all data and continue the experiment for nine trials.
Data:
Tug1-30(g)
Tug2-45(g)
Tug3-85(g)
Jerk1-20(g)
Jerk2-70(g)
Jerk3-40(g)
Constant Speed-30(g)
Faster Speed-45(g)
Conclusion:
My hypothesis was incorrect because I predicted that the force would be greater to start a car from rest but when I tested it out in all three of my trials I realized that I was wrong.
I thought that the project did not need to be changed. It was fine just like the wasy it was. The only thing that I probably would do over is my test trials. I would predict something new just to see if it was actually true.
Newton's 2nd Law was diplayed throughout this experiment because we had a chance to see if what he found out if it was actually true. We got a chance to test it on our own.
The real life application I would compare this experiment to would be when a car is being put together and tested they need to make sure that not to much force is being put on the brakes when the driver breaks because he could flip the whole car over if he applies to much pressure.
Objective:
The main focus of this lab is to determine if the force required to move an object from rest is different from the force that is required to move an object continuously.
Hypothesis:
I think that when we pull the ramp the cart will not flip over or fall, it will move backwards off of it.
Materials:
1.A spring
2.A cart
3.Wood
4.A 8 inch string
5.A ruler
6.A 200(g)grams weight
Procedures:
1. Cut a piece of string about 8” long. Tie one end to the front of the Hall’s cart and tie a loop in the free end.
2. Put the 200 gram mass in the Hall’s cart.
3. Push the cart back and forth on the table and think about the problem statement.
4. Zero the spring scale and attach the hook on the spring scale to the spring loop on the cart.
5. Tug on the spring scale several times to start the cart moving from rest. Note and record the spring scale readings.
6. Now jerk on the spring scale several times rapidly start the cart moving from rest. Note and record the spring scale readings.
7. Finally, pull the cart across a table or floor at a constant speed several times. Note and record the spring scale reading each time. Try this step again, pulling the cart at a faster speed and record your results.
Data:
Tug
1 08.n/50g
2 1.3n/130g
3 2n/200g
4 2.3n/230g
Jerk
1 0.5n/50g
2 0.5n/50g
3 1.5n/150g
Pull
1 50g/0.5n 25g/0.3n
2 100g/1n 50g/0.5n
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