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?”
19 comments:
Physicist Tyesha Hall
Physics
April 10, 2008
11-1
Objective: The objective is the force required to move an object from rest different from the force required to keep an object.
Hypothesis: I think the force is greater than force required to keep the cart moving.
Materials Used: - 8inch string
- wooden ramp
- 200 gram
- Cart
- Spring scale
TUG
JERK
Trial 1 .5n(50g) Trial 1 5n(50g)
Trial 2 1n(100g) Trial2 1n(100g)
Trial 3 .5n(50g)
Trial3 1n(100g)
Constant Speed Faster Speed
Trial 1 .5n(500g) 1.5n(150g)
Trial 2
Trial 3 .8n(80g)
.5n(50g) 1 (100g)
1.5(150g)
Procedure- 1. Cut a piece of string about 8” long. Tie one end to the front of the halls 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 string scale and attach the hook on the spring scale to the string loop on the cart.
5. Tug on the spring several times to star the cart moving from rest. Note and record the spring scale recording each time.
6. Now jerk on the spring scale several times to rapidly start the cart removing from rest. Note and record the spring scale readings.
7. Finally, pull the cart across a table or floor several times. Note and record the spring scale readings each time. Try this step again, pulling the cart at a faster sped and record your results.
Conclusion: I believe that it takes more force to star an object moving from rest. I also think that it takes more force to start it moving quickly. My hypothesis was correct. The object does not follows Newton’s First law.
Experiment 2:
Objective: Is greater force required than regular force?
Hypothesis: I think that the force is greater than force required to keep the cart moving.
Materials Used: 8"inch string, wooden ramp, 200 gram mass, cart spring scale
Procedure:
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 (g) mass in the Hall's cart.
3. Push the cart back and forth on the table and think about the problem statement. Write down your hypothesis before you begin the procedure.
4. Zero the spring scale and attach the hook 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. Note and record the spring scale reading each time.
6. Now jerk on the spring scale several times to 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 readings each time. Try this step again, pulling the cart at a faster speed and record your results.
Data:
Tug: Jerk: Constant Speed: Faster Speed:
Trial 1-.5n (50 g) Trial 1-.5n (50 g) Trial 1- .5n (50 g) 1.5 n (150 g)
Trial 2-1n (100 g) Trial 2- 1n (100 g) Trial 2- .8n (80 g) 1n (100 g)
Trial 3-.5n (50 g) Trial 3- 1n (100 g) Trial 3- .5n (50 g) 1.5n (150 g)
Conclusion:
1. It takes greater force to start an object moving.
2. It takes greater force to start an object moving slowly.
3. My hypothesis was correct.
4. No, it doesn't follow Newton's Law
Experiment #1.
Objective: Does object at rest remain at rest?
Hypothesis: Yes any object that is at rest remains at rest if not tampered with.
Materials used:
1. A lumber wood
2. An spring
3. An 8in card
4. An cart
5. An 200(g) grams weight
6. An Ruler
Procedure
First we place the board on the table then we measure 12(cm), the 12(cm) we measure was so that we had to have 12(cm) hanging from the table. We took the cart and place it on the board then we took the 8in card and attach it to the cart so that we could then place the spring on the card and to would hold the cart and the spring together so we would be able to complete or experiment. After wards we would place the 200gram weigh in the cart then we would start our procedure.
Data
Trial 1: The cart drops
Trial 2: the car drops without moving.
Trial 3: The cart drops at the same time
Trial 4: The cart drops and moves backwards.
Conclusion
The experiment that we did was that if objects at rest remain at rest. Well has come the conclusion when we remove the ramp the cart remain the same most of the time, so with the hypothesis that I had was correct object at rest does remain at rest unless it has been move by something or someone.
Experiment #2
Objective: Does object at rest remain at rest?
Hypostasis: Yes it should be different. When any object that is at rest it takes more force to move the object. When the object is already moving it takes less forces to move the object.
Materials used:
1. A lumber wood
2. An spring
3. An 8in card
4. An cart
5. An 200(g) grams weight
6. An Ruler
Procedure
First we place the board on the table then we measure 12(cm), the 12(cm) we measure was so that we had to have 12(cm) hanging from the table. We took the cart and place it on the board then we took the 8in card and attach it to the cart so that we could then place the spring on the card and to would hold the cart and the spring together so we would be able to complete or experiment. After wards we would place the 200gram weigh in the cart then we would start our procedure. We pull the cart around so that we could get or get or data…
Data:
Key: Grams (G) and Notions (N)
Trial 1: 0.5(N), 50(G)
Trial 2: 1(N), 100(G)
Trial 3: 1.5(N), 150(G)
Trial 4: 1.5(N),150(G)
Trial 1: 1(N), 100(G)
Trial 2: 1(N), 100(G)
Trial 3: 1.5(N), 150(G)
Trial 4: 2(N). 200(G)
Trial 1: 0.5(N), 50(G)
Trial 2: 0.5(N), 50(G)
Trial 3: 2.5(N), 250(G)
Trial 4: 3(N). 300(G)
Conclusion
Any object that is moving will stay at a constant rate unless it is being move by a force of energy. If and object is already moving it will take less force to move it, and if the object is not moving it will take more force that you use to make the already object move. My hypostasis was correct. The cart fallow Newton’s first law for a body rest.
Experiment #2
Oblectives: To see if the force required to an oblect from rest different from the force required to keep an object in move.
Hypothesis: The force will be greater if there is no movement in the cart. then it would be if the cart was already moving.
Materials: 2000 gram weight, Cart, string, Scale
Procedures: First we put the weight inside of the Cart.
2. Tied the string up to the front of the cart.
3. Then attached the the scale to the string.
4. We pulled, tuged and jerk the cart to see the results.
5. Recorded the data.
Data:
Tug Jerk Pull
20g-.2n 110-1.1n 200-2n
10g-.1n 100-1n 200-2n
30-.3n 120-1.2n 150-1.5n
50-.5n 100-1n 200-2.5n
30-.3n 1201.2n 250-2.5n
Conclusions: It takes more force to start an object if it is not moving already then if it if already was moving. It takes more force to start an object moveing slowly then to start an object that is moving quikly. My Hypothesis was correct.
Experiment #2
Oblectives: To see if the force required to an oblect from rest different from the force required to keep an object in move.
Hypothesis: The force will be greater if there is no movement in the cart. then it would be if the cart was already moving.
Materials: 2000 gram weight, Cart, string, Scale
Procedures: First we put the weight inside of the Cart.
2. Tied the string up to the front of the cart.
3. Then attached the the scale to the string.
4. We pulled, tuged and jerk the cart to see the results.
5. Recorded the data.
Data:
Tug Jerk Pull
20g-.2n 110-1.1n 200-2n
10g-.1n 100-1n 200-2n
30-.3n 120-1.2n 150-1.5n
50-.5n 100-1n 200-2.5n
30-.3n 1201.2n 250-2.5n
Conclusions: It takes more force to start an object if it is not moving already then if it if already was moving. It takes more force to start an object moveing slowly then to start an object that is moving quikly. My Hypothesis was correct.
Darren Gibson
Physics
April 10, 2008
11-1
Force to Move Objects from Rest (Newton's 2nd Law)"
Objectives: To see if the force required to an object from rest different from the force required to keep an object in motion.
Hypothesis: i believe it is greater than moving a cart that is already moving because it is stationary
Materials:
- 8 inch string
- wooden ramp
- 200 gram
- Hall's Cart
- Spring scale
Procedure:
1. Cut a piece of string about 8” long. Tie one end to the front of the halls 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 string scale and attach the hook on the spring scale to the string loop on the cart.
5. Tug on the spring several times to star the cart moving from rest. Note and record the spring scale recording each time.
6. Now jerk on the spring scale several times to rapidly start the cart removing from rest. Note and record the spring scale readings.
7. Finally, pull the cart across a table or floor several times. Note and record the spring scale readings each time. Try this step again, pulling the cart at a faster sped and record your results.
Data:
Tug
Trial 1= .5N
Trial 2= 1N
Trial 3= 1.5N
Trial 4= 1.5N
Jerk
Trial 1= 1N
Trial 2= 1N
Trial 3= 1.5N
Trial 4= 2N
Constant
Trial 1= .5N
Trial 2= .5N
Trial 3= .5N
Trial 4= 3N
Conclusion:
That throughout the experiment most of the data came back the it doesn't matter if we tugged,jerked or pulled the cart at a constant speed.
Experiment: Force to Move objects from Rest.
Objective- To prove that the force required to move an object from rest is not different than the force required to keep the object moving.
Hypothesis- The force required to move an object from rest has to be greater than the force required to keep the cart moving in order to really push the cart.
Procedure- 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 (g) mass in the Hall’s cart.
3. Push the cart back and forth on the table and think about the problem statement. Write down your hypothesis before you continue.
4. Zero the spring scale and attach the hook on the spring scale to the string on the 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 reading every time.
6. Now jerk on the spring scale several times to rapidly start the cart moving from rest. Note and record the spring scale reading every time.
7. Finally, pull the cart across a table or floor at a constant speed several times. Note and record the readings each time. Try this step again, pulling the cart at a faster speed. Note and record the spring scale reading every time.
8. Analyze Results.
Data-
When Tugged:
Trial 1 - .5n (50 g)
Trial 2- 1n (100g)
Trial 3- .5n (50g)
When Jerked:
Trial 1- .5n (50g)
Trial 2- 1n (100g)
Trial 3- 1n (100g)
When at a Constant speed:
Trial 1- .5n (50g)
Trial 2- .8n (80g)
Trial 3- .5n (50g)
When at a faster Speed:
Trial 1- 1.5n (150g)
Trial 2- 1n (100g)
Trial 3- 1.5n (150g)
Conclusion- After performing this experiment I can now say that it takes more force to keep an object moving than just to get it to move. I also know that it takes more force to start an object moving quickly than it does to move an object slowly. My hypothesis was correct. I said that it takes more force to keep an object moving, which it does. I can say that this does follow Newton’s first law for a body at rest, because the cart moved when an external force was exerted upon it. Though nothing went wrong I learned that force is force, in many instances during the experiment the cart experienced the same level when jerked and when lightly pushed. When you think about it this experiment applied to everyday life. Just like when you kick a ball. Sometimes no matter how hard you kick it, it’s going to roll.
Experiment~ Force to Move objects from Rest.
Objective~ To prove that the force required to move an object from rest is not different than the force required to keep the object moving.
Hypothesis- The force is to move an object from rest has to be greater than the force required to keep the cart moving in order to really push the cart.
Procedure~ 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 (g) mass in the Hall’s cart.
3. Push the cart back and forth on the table and think about the problem statement. Write down your hypothesis before you continue.
4. Zero the spring scale and attach the hook on the spring scale to the string on the 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 reading every time.
6. Now jerk on the spring scale several times to rapidly start the cart moving from rest. Note and record the spring scale reading every time.
7. Finally, pull the cart across a table or floor at a constant speed several times. Note and record the readings each time. Try this step again, pulling the cart at a faster speed. Note and record the spring scale reading every time.
8. Then my group and I will have to Analyze Results.
Data-
When Tugged:
Trial 1 - .7n (70 g)
Trial 2- 1n (100g)
Trial 3- .7n (70g)
When Jerked:
Trial 1- .7n (70g)
Trial 2- 1n (100g)
Trial 3- 2n (200g)
When at a Constant speed:
Trial 1- .5n (50g)
Trial 2- .8n (80g)
Trial 3- .5n (50g)
When at a faster Speed:
Trial 1- 1.5n (150g)
Trial 2- 1n (100g)
Trial 3- 1.5n (150g)
Conclusion~ After apply Second Newton Law this experiment we can now say that it takes more force to keep an object moving than just to get it to move. I also know that it takes more force to start an object moving quickly than it does to move an object slowly. My hypothesis was correct. I can say that this does follow Newton’s second law for a body at rest, because the cart moved when an external force was exerted. Since nothing went wrong I learned that this can be used in everyday life.
Experiment: Force to Move objects from Rest.
Objective- To prove that the force required to move an object from rest is not different than the force required to keep the object moving.
Hypothesis- the force will keep the object moving because it pulls it.
Procedure- 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 (g) mass in the Hall’s cart.
3. Push the cart back and forth on the table and think about the problem statement. Write down your hypothesis before you continue.
4. Zero the spring scale and attach the hook on the spring scale to the string on the 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 reading every time.
6. Now jerk on the spring scale several times to rapidly start the cart moving from rest. Note and record the spring scale reading every time.
7. Finally, pull the cart across a table or floor at a constant speed several times. Note and record the readings each time. Try this step again, pulling the cart at a faster speed. Note and record the spring scale reading every time.
8. Analyze Results.
Data-
When Tugged:
Trial 1 - .5n (50 g)
Trial 2- 1n (100g)
Trial 3- .5n (50g)
When Jerked:
Trial 1- .5n (50g)
Trial 2- 1n (100g)
Trial 3- 1n (100g)
When at a Constant speed:
Trial 1- .5n (50g)
Trial 2- .7n (80g)
Trial 3- .5n (50g)
When at a faster Speed:
Trial 1- 1.5n (150g)
Trial 2- 1n (100g)
Trial 3- 1.5n (150g)
conclusion:
i have learned that the force required to move an object from rest different from the force required to keep an object.
Physicist James Fisher
Physics
11-1
Objective: Is greater force required than regular force?
Hypothesis: I think that the force is less than the force required to keep it moving cart moving.
Materials Used: 8"inch string, wooden ramp, 200 gram mass, cart spring scale
Procedure:
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 (g) mass in the Hall's cart.
3) Push the cart back and forth on the table and think about the problem statement. Write down your hypothesis before you begin the procedure.
4) Zero the spring scale and attach the hook 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. Note and record the spring scale reading each time.
6) Now pull on the spring scale several times to 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 readings each time. Try this step again, pulling the cart at a faster speed and record your results.
Data:
When pulled:
Trial 1- 0n and 0g
The object was at rest
Trial 2 - .5n and 50g
The object moved slightly
Trial 3- 1n and 100g
The object wheels rolled two times
Trial 4- 1.5n and 150g
The object crashed into the spring
Trial 5- 2n and 200g
The object crashed into the spring
Conclusion:
As you can see the force was strong enough to start the object but was unable to keep it moving. Thus my hypothesis was correct.The only thing i would change is to use a longer sting for better results.
Objective: Is to apply Newton's Law toward this project. Newton's law describes the connection between the casue of a change in an object velocity and the resulting displacement.
Hypothesis: I believe that the cart will not roll due to the weight and the wheel will be stable.
Materials:-200 grams
- Cart
- String
-Spring Scale
Procedure: Tie the string to the cart then the scale.
Next you will tug the the cart that is connected to the scale.
Repeat this step 4 more times.
Data: Step 1- .70n and 75g
Step 2- .30n and 30g
Step 3- 1n and 100g
Conclusion: My thoughts toward this came out to be right. I took the time out to apply the weight in the cart and then came up with it will not move.
World Applying: I think that we can use this if we are building a car. A car is something that we use everyday and this would be a good procedure.
Inae Johnson force to Move object form the rest
Physicist: Inae Johnson
Section 11-1
April 10-08
Object: In this experiment two the force required to stare moving. To determine if the object will keep moving.
Hypothesis: Tug
Tug One: when I first saw the spring of scale and the cart I and saw that we had to tug I was like ok if we tug the spring of scale with the spring of scale then there is more like that the force of tug it would take over.
Tug two after do the experiment for the first experiment I saw the different in the tug .I sate this because I was to believe that the same thing was going to happen once more.
Tug three: when I finally gotten to my three round of tug the spring and the cart I dot ice that there was stared to be a different in the tug the cart and the number on the scale was different each time.
Tug four: When I finally gotten to experiment four of the spring of scale I was like ok maybe there will be the same out come because if the same thing was to happen then more likely the force will not change.
Tug five: When going into round five of tug the spring scale I was like ok maybe now that there was a different then the number on the spring scale
Tug six: when I finally got to experiment six I was like what can real happen so I though about and sad that ok it more likely then some different number will come up.
Tug Seven: I was see some type of pattern that the spring scale was different numbers so I was like ok it more like that some thing different number was to come up.
Pull one: When do experiment one with pull the spring of scale I was like maybe there will
Jerk one: When I took saw that down that we had to jerk the spring scale with the cart I was like ok maybe there is a way that the cart will fall off the table .the reason why I said this is because a jerk is a heard type of force.
Jerk two: I was like ok scene it did not fall off the table I was like ok may be there is more likely to be different out comes on the spring of scale.
Jerk three: As I stared on experiment three I was like ok what going to happen down .The first thing that came to mind Is just maybe the same number will come up .
Materials: 2000 gram weight, Cart, string, Scale
Procedures: First we put the weight inside of the Cart.
2. Tied the string up to the front of the cart.
3. Then attached the the scale to the string.
4. We pulled, tuged and jerk the cart to see the results.
5. Recorded the data.
Data:
Tug Jerk Pull
20g-.2n 110-1.1n 200-2n
10g-.1n 100-1n 200-2n
30-.3n 120-1.2n 150-1.5n
50-.5n 100-1n 200-2.5n
30-.3n 1201.2n 250-2.5n
Conclusion: Some what of my hypothesis was right the reason why I believe that some of my experiment when wrong was because every thing was not right as done. If I could change one thing about this lab experiment I would do what was sad in the paper right. I believe that this can be use in every day life by use it as a toll tuck
Physicist Blair Robinson
Physics
11-1
Objective: Is greater force required than regular force?
Hypothesis: I think that the force is less than the force required to keep it moving cart moving.
Materials Used: 8"inch string, wooden ramp, 200 gram mass, cart spring scale
Procedure:
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 (g) mass in the Hall's cart.
3) Push the cart back and forth on the table and think about the problem statement. Write down your hypothesis before you begin the procedure.
4) Zero the spring scale and attach the hook 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. Note and record the spring scale reading each time.
6) Now pull on the spring scale several times to 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 readings each time. Try this step again, pulling the cart at a faster speed and record your results.
Data:
When pulled:
Trial 1- 0n and 0g
The object was at rest
Trial 2 - .5n and 50g
The object moved slightly
Trial 3- 1n and 100g
The object wheels rolled two times
Trial 4- 1.5n and 150g
The object crashed into the spring
Trial 5- 2n and 200g
The object crashed into the spring
Conlusion:
In the beginning the force was strong but after a short while, it was unable to keep it moving. My hypothesis were correct. If there was longer string the outcome would be major.
Experiment #2
Objective:The point of the lab is to determine how the force required to move an object from rest difference from the force required to keep an object moving.
Hypothesis:What i think will happen
is the cart will slide on the table a little bit.
Materials:
-Ruler
-Wooden ramp
-Cart
-Table
-string
-mass
-scale
Proceedure: Start off by placing a wooden ramp on the table. Then tie a piece of string to the cart. Then place a cart on the top the ramp. Also put a 200g of mass on the cart with the scale. Then quickly jerk the ramp and see what the scale says. You have to do this atleast 4 times. To see how different the lab is.
Data:
Observation 1 - The cart moved up.
Observation 2 - The cartmoved up then back a little on the board.
Observation 3- The cart moved up.
Observation 4 - The cart moved up a little.
Tug
1. 20g - .2n
2. 10g - .1n
3. 30g - .3n
4. 40g - .4n
Jerk
1. 110g - 1.1n
2. 100g - 1.0n
3. 120g - 1.2n
4. 100g - 1.0n
Pull
1. 200g - 2n
2. 200g - 2n
3. 150g - 1.5n
4. 250g - 2.5n
Conclusion: The cart moved up a little. Its did not slide off the board. It stayed in the same position.
Physicist:Marquisa L. Howard
Objective: Is greater force required than regular force?
Hypothesis: I think the force to change the direction will be less.
Materials Used: 8"inch string, wooden ramp, 200 gram mass, cart spring scale
Procedure:
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 (g) mass in the Hall's cart.
3) Push the cart back and forth on the table and think about the problem statement. Write down your hypothesis before you begin the procedure.
4) Zero the spring scale and attach the hook 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. Note and record the spring scale reading each time.
6) Now pull on the spring scale several times to 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 readings each time. Try this step again, pulling the cart at a faster speed and record your results.
Data:
When pulled:
Trial 1- 0n and 0g
The object was at rest
Trial 2 - .5n and 50g
The object moved slightly
Trial 3- 1n and 100g
The object wheels rolled two times
Trial 4- 1.5n and 150g
The object crashed into the spring
Trial 5- 2n and 200g
The object crashed into the spring
Conclusion: My hypothesis was correct it took less force. To improve this lab i would used more force and change the direction it was going in.
Experiment 2:
Objective: Is greater force required than regular force?
Hypothesis: I think that it will both be able to move the cart with no problem
Materials Used: 8"inch string, wooden ramp, 200 gram mass, cart spring scale
Procedure:
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 (g) mass in the Hall's cart.
3. Push the cart back and forth on the table and think about the problem statement. Write down your hypothesis before you begin the procedure.
4. Zero the spring scale and attach the hook 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. Note and record the spring scale reading each time.
6. Now jerk on the spring scale several times to 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 readings each time. Try this step again, pulling the cart at a faster speed and record your results.
experiment results:
Tug: Jerk: Constant: Faster Speed:
Trial 1-.5n (50 g) Trial 1-.5n (50 g) Trial 1- .5n (50 g) 1.5 n (150 g)
Trial 2-1n (100 g) Trial 2- 1n (100 g) Trial 2- .8n (80 g) 1n (100 g)
Trial 3-.5n (50 g) Trial 3- 1n (100 g) Trial 3- .5n (50 g) 1.5n (150 g)
Conclusion:
It takes force to move something that is not moving. My hypothesis was right because no matter how much force was used it still moved. It followed his law a little bit.
Force/ Newton’s Law of Motion
Physicists Ebony Williams
April 10, 2008
Section 11-1
Force to Move Objects from Rest
Experiment2
Objective:
The object of this experiment was to determine how the force required to start moving a stationary object compares to force to keep an object moving
Materials:
Wooden ramp, hall’s cart, string, spring scale, ruler, and (200)
weight.
Hypothesis: I predict that the Hall’s cart is going to fell to the floor, because I have to push it back and forth even faster than I did before.
Materials Used: -String -Hall’s cart -200 g mass
-Table -Spring Scale -Hook
-Scissors -Ruler
Procedure: 1. Cut a piece of string about 8” long and tie one end to the front of the Hall’s cart and tie a loop on the free end.
2. Put 200 g mass in front of the Hall’s cart.
3. Push the cart back and forth on the table and think about the problems stated.
4. Zero the spring scale and attach the hook on the spring scale to the string looped on the cart.
5. Tug on the spring scale several times to start the cart moving from rest. Note and record the spring scale reading each time.
6. Now jerk on the spring scale several times to rapidly start the cart moving from rest. Note and record the spring scales reading.
7. Finally, pull the cart across the table or floor at a constant speed several times. Note and record the spring scales reading each time. Try this step again, pulling the cart at a faster speed and record your results.
Data:
Trial Spring Scale Reading
1st Trial 0.1
2nd Trial 0.5
3rd Trial 0.1
4th Trial 0.1
5th Trial 1.5
Conclusion:
My prediction was correct the Hall’s cart indeed fell to the floor due to the speed increasing.
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