Thursday, April 17, 2008
Newton's 1st Law ( Experiment 4)
Post Experiment IV here. Remember to explain your data in detail and to include all of the elements of the lab report format( objective, Hypothesis, materials, data, conclusion). Also, make sure that you include practical applications for the concepts that are covered in the lab.
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Objects In Motion Remain In Motion
Physicist: Marquisa Howard
Group Members:
Physicist: Blair Robinson
Physicist: James Fisher
11-1
4/15/08
Objective: To experiment Newton’s first law has to do with the force required to change speed or direction of a moving object. It will take more force to change the speed or direction of a moving object than it does to maintain the initial speed of the object.
Hypothesis: I think the force will be greater to increase the speed of the cart. I also think the speed of the cart when you move it in the shape of the arc will decrease. The force required to maintain the initial speed of the cart would decrease.
Materials:
Hall’s Cart
200-gram mass
Spring scale
String
Procedure:
1. Use the same setup from experiment 2.
2. Start moving at a slow speed by pulling on the string scale.
3. Then quickly pull harder to accelerate the speed of the speed. Repeat 4-5 times while reading the scale.
4. Start rolling slowly by pulling on the spring scale and then pull the scale in a wide arc to change the direction of the cart. Repeat 4-5 times.
5. Record the maximum force for both.
Data:
Trial Start Finish
1. .5n 1n
2. .5n 5n
3. .5n 2n
4. .5n 2n
5. .5n 1.5n
Trial Start Finish
1. .5n 2n
2. .5n 2n
3. .5n 4n
4. .5n 4n
Conclusion:
It takes more force to accelerate the cart and it takes less force to maintain its initial speed. It also takes less force to change the direction of the cart and more force to maintain the direction of the cart. My hypothesis was both right and wrong. It takes more force to maintain the direction of the cart instead of less force. If I could change the lab, I would move the cart in many directions to see if the force increase or decrease. I would also have a better way to measure the force. I learned the more force the faster the object will move. The concept can be used in everyday life because it shows how you should use seatbelts in cars to stop a person from being jerked around.
Objective: Does force required to change the speed or direction of a moving object.
Hypothesis: I think the if the force is increased then the speed of the cart will be increased as well.
Materials:
-200g of mass
-string
-scale
-cart
Procedure:
First you start by Increasing the speed of the cart once its in motion. Then start pulling the string with scale. Then pull quickly to accelerate the speed of the cart.
Data:
1. .2n 2n
2. .3n 1n
3. .5n 3n
4. .5n 5n
5. .4n 1.3n
Conclusion:
In this experiment the speed changed. All times the cart went different ways. So My hypothesis was right if the force is increased then the speed of the cart will be increased.
Experiment 4
Objective: Objects at Motion Remain at Motion
Hypothesis:
1. The force might have to be greater because the gram went from 100 to 200 so it's going to be heavier, so it might be harder to push.
2. The force will be less because it's going to be haredr to curve the cart with the 200 gram mass because it's heavier.
Materials Used:
8' inch string
cart
200 gram mass
spring scale
Data:
Trial 1- starts at 0 ends at 1
Trial 2- starts at 0 ends at 1.5
Trial 3- starts at 0 ends at 1
Trail 4- starts at 0 ends at 1.5
Conclusion:
1. It takes more force to maintain its initial speed.
2. It takes more force to change the direction of the cart.
3. My first hypothesis was inccorect.
4. My second hypothesis was correct.
5. The experiment followed Newton's First law
6. Nothing went wrong while doing this experiment.
Physicist: Blair Robinson
Group Members: Physicist Marquisa Howard, Physicist James Fisher
1-1
Objective: To experiment Newton’s first law has to do with the force required to change speed or direction of a moving object. It will take more force to change the speed or direction of a moving object than it does to maintain the initial speed of the object.
Hypothesis: I think that the force will either increase, or decrease the carts speed.As well as the direction of the force motion.
Materials:
Hall’s Cart
200-gram mass
Spring scale
String
Procedure:
1. Use the same setup from experiment 2.
2. Start moving at a slow speed by pulling on the string scale.
3. Then quickly pull harder to accelerate the speed of the speed. Repeat 4-5 times while reading the scale.
4. Start rolling slowly by pulling on the spring scale and then pull the scale in a wide arc to change the direction of the cart. Repeat 4-5 times.
5. Record the maximum force for both.
Data:
Trial Start Finish
1. .5n 1n
2. .5n 5n
3. .5n 2n
4. .5n 2n
5. .5n 1.5n
Trial Start Finish
1. .5n 2n
2. .5n 2n
3. .5n 4n
4. .5n 4n
Conclusion: My conclusion is that when high force is applied there is a better acceleration, and takes less force to have an anitial speed.
Objectives: To see if it takes more force to change the speed or direction of a moving object. Then the initial speed.
Hypothesis: The force will be greater than because if you want to change the speed then you have to put in more work.
Materials: 200 g mass, string, spring scale, cart
Procedures: 1. Set up the equipment
2. We pulled on the string 4-5 times to see what changes we could find.
3. Recorded our results.
4. Then we pulled the string in an arc direction to see the changes we could find.
5. Recorded our results.
Data 1:
a. 100g
b. 150g
c. 100g
d. 120g
e. 150g
Data 2:
a. 200g
b. 150g
c. 200g
d. 150g
e. 100g
Analyze
It takes more force to maintain it's initial speed. Because you would have to push the cart harder to get the speed to accelerate. I t takes mote force to change the direction of the cart. When you change the direction you pull harder which causes the spring scale grams to go up.
My conclusions was correct.
Tiffany Witcher
#4 1
11-1
Objective: To experiment Newton’s first law has to do with the force required to change speed or direction of a moving object. It will take more force to change the speed or direction of a moving object than it does to maintain the initial speed of the object.
Hypothesis: I think the force will be greater to increase the speed of the cart.
Materials:
Hall’s Cart
200-gram mass
Spring scale
String
Procedure:
1. Use the same setup from experiment 2.
2. Start moving at a slow speed by pulling on the string scale.
3. Then quickly pull harder to accelerate the speed of the speed. Repeat 4-5 times while reading the scale.
4. Start rolling slowly by pulling on the spring scale and then pull the scale in a wide arc to change the direction of the cart. Repeat 4-5 times.
5. Record the maximum force for both.
Data:
Trial Start Finish
1. .5n 1n
2. .5n 5n
3. .5n 2n
4. .5n 2n
5. .5n 1.5n
Trial Start Finish
1. .5n 2n
2. .5n 2n
3. .5n 4n
4. .5n 4n
Conclusion:
This was fun. i had fun doing experiment 4. I think we can use this everday life for secruity. I was wrong.It takes more force to accelerate the cart and it takes less force to maintain its initial speed. It also takes less force to change the direction of the cart and more force to maintain the direction of the cart.
Lab Title Force to changes seep or direction of moving object.
Physicist: Inae Johnson
Section 11-1
April 18-2008
Objective: The object of do this lab was to see if the seed of direction of a moving object.
Hypothesis: I believe that the force will stay in the same place when the acceleration increases the seed.
Procedure:
1. Start moving at a slow speed by pulling on the scale of about serval times.
2. Stared the cart rolling slowly by pulling on pulling on the spring scale.
Data:
1.100g mass
2.150g mass
3.1000g mass
4.120g mass
5.150g mass
1. 200gmass
2. 150g mass
3. 200gmass
4. 1500g mass
5. 100g mass
Conclusion:
Yes my hypothesis was correct.
The reason why I believe that my hypothesis was right is because when I first saw that we had to pull I new form right there and then that it was going to fall off the ramp. In this experiment I learn that force of speed is on your own pace.
I believe the can be use in everyday life by use on a car or a airplane.
Experiment 4
Objective: Objects at Motion Remain at Motion
Hypothesis: Will the cart keep moving after we push it
Materials:
8' inch string
cart
200 gram mass
spring scale
Data:
Trial 1- starts at 0 ends at 1
Trial 2- starts at 0 ends at 1.5
Trial 3- starts at 0 ends at 1
Trail 4- starts at 0 ends at 1.5
Conclusion:
In conclusion it was right and both wrong to me for many reasons. One reason is that the cart did not stay in motion for very long. But it still was in motion.
Objects In Motion Remain In Motion
Physicist: James Fisher
Group Members:
Physicist: Blair Robinson
Physicist: Marquisa Howard
11-1
04/15/08
Objective: To experiment Newton’s first law has to do with the force required to change speed or direction of a moving object. It will take more force to change the speed or direction of a moving object than it does to maintain the initial speed of the object.
Hypothesis: I believe the force to turn the cart is greater than the force to accelerate the cart
Materials:
1 Hall’s Cart
1 200-gram mass
1 Spring scale
1 String
Procedure:
1. Use the same setup from experiment 2.
2. Start moving at a slow speed by pulling on the string scale.
3. Then quickly pull harder to accelerate the speed of the speed. Repeat 4-5 times while reading the scale.
4. Start rolling slowly by pulling on the spring scale and then pull the scale in a wide arc to change the direction of the cart. Repeat 4-5 times.
5. Record the maximum force for both.
Data:
Trial Start Finish ARC
Trial 1. .5n 1n
Trial 2. .5n 5n
Trial 3. .5n 2n
Trial 4. .5n 2n
5. .5n 1.5n
Trial Start Finish ACCEL
Trial 1. .5n 2n
Trial 2. .5n 2n
Trial 3. .5n 4n
Trial 4. .5n 4n
Conclusion:
I as you see my hypothesis was true. It takes more force to change a object than to accelerate it.
Experiment: Force to Change Speed or Direction of a Moving Object
Objective: To prove that that force needed to change the speed and direction of a moving object is a factor in the speed need to maintain the initial speed of the object.
Hypothesis: The force to keep the initial speed of the cart will be greater than the force required to maintain the initial speed of the cart. Once the cart changes its direction the force required to maintain the initial speed of the car will be lesser.
Procedure: 1. Use the same setup as experiment 2 with the 200g mass, string, and spring scale.
2. Start moving at a slow speed by pulling on the spring scale. Then quickly pull harder to accelerate the speed of the cart. Repeat this several times while reading the spring scale. Record the maximum force reading on the scale each time.
3. Experiment with changing the direction of the cart. Start the cart rolling slowly by pulling on the spring scale and then pull the scale in a wide arc to change the direction of the cart. Try this several times, changing direction as quickly as you can without tipping the cart over. Record the maximum force to change the direction each time.
4. Analyze Results. Begin to draw conclusions.
Data:
Accelerating the Cart
1. 0n 1.N
2. 0n 1.5N
3. 0n 1N
4. 0n 1.5N
Changing the Direction
1. .5n 2N
2. .5n 4N
3. .5n 2N
4. .5n 3N
Conclusion:
After completing this experiment I have concluded that my hypothesis was partially incorrect. It required more force to maintain the initial speed of the cart when changing the speed and the direction. The force required to change the speed or direction of a moving object is consistent with Newton’s first law, all objects in motion will remain in motion. Though I had difficulty understanding the experiment I don’t think anything went wrong during this experiment. I learned that when your changing direction you actually accelerating at a faster pace. In actual life when one is running and makes a sharp turn they are still running at a fast pace but in a different direction.
Darren Gibson
11-1
Objective: To experiment Newton’s first law has to do with the force required to change speed or direction of a moving object. It will take more force to change the speed or direction of a moving object than it does to maintain the initial speed of the object.
Hypothesis: i think that it would be greater in order to increase the speed of the cart.
Materials:
Hall’s Cart
200-gram mass
Spring scale
String
Procedure:
1. Use the same setup from experiment 2.
2. Start moving at a slow speed by pulling on the string scale.
3. Then quickly pull harder to accelerate the speed of the speed. Repeat 4-5 times while reading the scale.
4. Start rolling slowly by pulling on the spring scale and then pull the scale in a wide arc to change the direction of the cart. Repeat 4-5 times.
5. Record the maximum force for both.
Data:
Trial Start Finish
1. .5n 3n
2. .5n 5n
3. .5n 4n
4. .5n 4n
5. .5n 3n
Trial Start Finish
1. .5n 3n
2. .5n 2n
3. .5n 3n
4. .5n 4n
Conclusion:
My hypothesis was correct because it took more force to change the speed and direction.
Experiment #4
Physicist Symone Gladden
Physicist Darren Gibson
Physicist Yanique Tomlinson
Does it take more force to change the speed or direction of a moving object that it does to maintain the initial speed of the object?
Hypothesis:It would taje more force to change the speed or direction of a moving object.
Materials:
Hall’s Cart
200-gram mass
Spring scale
String
Procedure:
1)Use the same setup from the previous experiment
2) Start moving at a slow speed by pulling on the string scale.
3) Then quickly pull harder to accelerate the speed of the speed. Repeat 4-5 times while reading the scale.
4) Start rolling slowly by pulling on the spring scale and then pull the scale in a wide arc to change the direction of the cart. Repeat this 4-5 times.
5) Record the maximum force for both.
Data: The Cart Accelerating
Trial 1---0.5 N 50 g
Trial 2---1.5 N 150 g
Trial 3---2 N 200
The Cart Changing Direction
Trial 1---0.5 N 50 g
Trial 2---1 N 100 g
Trial 3---0.5 N 50 g
Conclusion:
In this experiment we had to determine which took more force: changing the speed or direction of the cart which is moving and maintaining the initial speed. My hypothesis was that it will take more force to keep the initial speed of the cart. After we tested the experiment I found out that my hypothesis was incorrect.
The first three trials I had to see what the force was to accelerate the cart. On trial one it was 0.5 N. Trial two it was 1.5 N and on the last trial the force was 2 N. So that showed me that to accelerate the cart it would need more force. Then when I tested it to see howe much force is used to change the direction it was 1 N the first trial, 1 N the second trial and on the last 1.5 N. That also proved to me that more force was needed to change the direction.
I could of improved the experiment by stating what the initial speed was. From doing this lab I learned that my hypothesis was incorrect and why.
Objective: To see if Newton's first Law force require to change speed in direction of a moving object.
Hypothesis: It would be greater if it take the force of speed. As a result of the cart it would take more force to change speed or direction of a moving object.
Materials:
Hall’s Cart
200-gram mass
Spring scale
String
Procedure:
1. Use the same setup from experiment 2.
2. Start moving at a slow speed by pulling on the string scale.
3. Then quickly pull harder to accelerate the speed of the speed. Repeat 4-5 times while reading the scale.
4. Start rolling slowly by pulling on the spring scale and then pull the scale in a wide arc to change the direction of the cart. Repeat 4-5 times.
5. Record the maximum force for both.
Data:
Trial Start Finish
1. .5n 1n
2. .5n 5n
3. .5n 2n
4. .5n 2n
5. .5n 1.5n
Trial Start Finish
1. .5n 2n
2. .5n 2n
3. .5n 4n
4. .5n 4n
Conclusion: My hypothesis was correct. I see that when objects with less force and are small move it has a greater chance of going with the force. It had move of a force feild so it was easier to tell.
Real World: We ca apply this in our everyday life when we leave small object around when there a greater force then it.
Ebony Williams
April 18, 2008
Force to Change Speed or Direction of A Moving Object
Experiment #4
Objective: The objective of this experiment is to use Newton’s first law of force to determine the required to change the speed or direction of a moving object.
Hypotheses: I think the force will be greater than the force required maintaining the initial speed of the cart. I think the force will be less than the required to maintain the initial speed of the cart.
Materials: string, ramp, halls carts, 200 g mass and a spring scale
Procedure: 1. Use the same setup as in experiment 2 with the cart 200 g mass, string, and spring scale.
2. Think about force required to accelerate or increase the speed of the cart once it is in motion. Will this force be greater or less than the force required maintaining the initial speed of the cart? Will the force be greater of less than the force required to maintain the initial speed of the Think about the force required to change the direction of the cart once it is in motion cart? Predict your answers to these questions and write them down as hypotheses.
3. Start moving at a slow speed by pulling on the string scale. Then quickly pull harder to accelerate the speed of the spring scale each time.
4. Experiment with changing the direction of the cart. Start the cart rolling slowly by the spring scale and then pull the scale in a wide arc to change the direction of the cart. Try this several times, changing direction as quickly as you can without tipping the cart over. Record the maximum force to change the direction each time.
5. Analyze your results. Which takes more force, to accelerate the cart or to maintain its initial speed? Does it take more force to change the direction of the cart or to maintain the direction of the cart? Were your hypotheses correct? Is the force required to change the speed or direction of a moving object consistent with Newton’s first law? Record your results and conclusions in your notebook.
Data:
Trail Newton Grams Halls Cart recordings
1st 1N 100G Slowly
2nd 1.5N 150G A little faster
3rd 1.5N 150G Fast
4th 2N 2N Moving rapidly
QA: Which takes more force, to accelerate the cart or to maintain its initial speed?
I think it takes more force to accelerate the cart than to maintain the initial speed.
Does it take more force to change the direction of the cart or to maintain the direction of the cart? I think it takes more force to change to direction of the cart than to maintain the direction of the cart.
Is the force required to change the speed or direction of a moving object consistent with Newton’s first law? Yes I think the force required to change the speed or direction of a moving object consistent with Newton’s first law.
Were your hypotheses correct? Yes, I believe my hypotheses with correct.
Conclusion: yes, my hypotheses with correct the force indeed get faster
Experiment 4
Does it take more force to change the speed or direction of a moving object that it does to maintain the initial speed of the object?
Hypothesis:It would taje more force to change the speed or direction of a moving object.
Materials:
Hall’s Cart
200-gram mass
Spring scale
String
Procedure:
1)Use the same setup from the previous experiment
2) Start moving at a slow speed by pulling on the string scale.
3) Then quickly pull harder to accelerate the speed of the speed. Repeat 4-5 times while reading the scale.
4) Start rolling slowly by pulling on the spring scale and then pull the scale in a wide arc to change the direction of the cart. Repeat this 4-5 times.
5) Record the maximum force for both.
Data: The Cart Accelerating
Trial 1---0.5 N 50 g
Trial 2---1.5 N 150 g
Trial 3---2 N 200
The Cart Changing Direction
Trial 1---0.5 N 50 g
Trial 2---1 N 100 g
Trial 3---0.5 N 50 g
Conclusion:
In this experiment we had to determine which took more force: changing the speed or direction of the cart which is moving and maintaining the initial speed. My hypothesis was that it will take more force to keep the initial speed of the cart. After we tested the experiment I found out that my hypothesis was incorrect.
The first three trials I had to see what the force was to accelerate the cart. On trial one it was 0.5 N. Trial two it was 1.5 N and on the last trial the force was 2 N. So that showed me that to accelerate the cart it would need more force. Then when I tested it to see howe much force is used to change the direction it was 1 N the first trial, 1 N the second trial and on the last 1.5 N. That also proved to me that more force was needed to change the direction.
I could of improved the experiment by stating what the initial speed was. From doing this lab I learned that my hypothesis was incorrect and why.
Physicist Tyesha Hall
Group Members
Physicist Ebony Williams
Physicist Rahmid Trotman
Objective: Force to change speed or direction of a moving object.
Hypothesis: I think that it takes more force to change the speed of direction of a moving object.
Materials used:
1. Cart
2. 100g mass
3. Spring scale
4. Wooden ramp
5. String
Procedure:
1. Use the same setup as in experiment 2 with the cart 200g mass, string and spring scale.
2. Think about force required to accelerate or increase the speed of the cart once it is in motion.
3. Start moving at a slow speed by pulling on the string scale. Then quickly pull harder to accelerate the speed of the cart. Repeat this several times while reading the spring scale. Record the maximum force reading on the spring sale each time.
4. Experiment with changing the direction of the cart. Start the cart rolling slowly by pulling on the spring scale then pull the scale in a wide arc to change the direction of the cart. Try this several times, changing direction as quickly as you can without tipping the cart over. Record the maximum force to change the direction each time.
5. Analyze your results. Record your results and conclusions in your notebooks.
Data:
1. 1n 100g-started of slowly
2. 1.5n 150g- started moving faster
3. 1.5ng moving faster
4. 2n moving rapidly
Conclusion:
1. I think that it takes more speed to accelerate the speed.
2. It takes more force to change a direction of the cart.
3. My hypothesis was correct because it took way more force for us to change the direction then it did for us to change the speed. I could improve the experiment by improving what the actual speed was. I learned that when you change direction that you accelerate at a faster pace.
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