Force to Change Speed or Direction of A Moving Object

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.

Objects in Motion Remain in Motion

Experiment 3:

Objective: To prove that objects in motion don't continue to be in motion unless acted upon external force.

Hypothesis: I think that when you push the cart the 100 g mass will fall off of the cart.

Materials Used:

1. ramp
2. cart
3. tape
4. cardboard
5. 100g mass

Procedure:

1. Place the wooden ramp on the floor

2. Tape a piece of cardboard over the hole in the Hall's cart

3. Put the 100 g mass on top of the cardboard as illustrated

4. Gently push the cart so that it collides with the edge of the ramp. You must push the cart gently enough so that the mass does not move until the cart hits ramp.

Data:

Trial 1- 100g mass falls
Trial 2- 100g mass rolls on the board
Trial 3- 100g mass falls on the floor
Trial 4- 100g mass rolls on the floor

Conclusion:

1. It kept falling and/or rolling on to the ramp or the floor.

2. Yes, my hypothesis was correct

3. Yes, it follows Newton's First Law

4. Nothing really went wrong, except when we would collide the cart with the ramp it would fall and roll on the floor.

5. I couldn't see using this in a real word application

6. I learned that when driving always wear a seat belt.

Force to Move Objects from Rest

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

Force/Newton's Laws of Motion

Force/Newton's Law of Motion:Experiment 1


Objective: The objects at rest remain at rest unless acted upon an external forces.


Hypothesis: I think that when you remove the ramp from underneath the cart it will roll/move.


Materials Used: 8" inch string, ramp and a cart



Procedure:


1. Set the ramp on a table with about 12" of the ramp extending over the edge of the tables.


2. Place the Hall's cart on top of the ramp that is over the table. The cart at this point is in a state of rest.



3. Standing to one side, quickly jerk the ramp out from underneath the Hall's cart. Try this 4-5 times. Record your observations.




Data:




Trial 1- it stayed on the table, it didn't move


Trial 2- it stayed on the table, it didn't move


Trial 3- it stayed on the table, it didn't move


Trial 4- it stayed on the table, it didn't move




Conclusion:




1. The cart didn't roll/move it stayed on the table.




2. My hypothesis was inccorect




3. Yes the object does follow the Newton's first Law




4. Nothing went wrong with the experiment




5. This could be used in real life situations because if you weren't able to pull the car and rope and/or chain to hook to the car and cart.

I. Utopian Society
A. Peace
1. there will be no violence
II. Location
A.Community
III. Taxes
A. no money would be taken out of your checks
IV. Politics
A. there will be NO VOTING FOR PRESIDENT!!! you run yourself








Essay


I think so many people pursue the idea of an utopian society because they just want to live somewhere where you don't have to hear on the news about somebody getting killed. They just want to live somewhere where there's no issues and nothing bad is going on, it's just perfect. They want peace, to live in a good community, no taxes and you don't have to vote their will be no president or politics.

I think deep down everybody wants to live in a society where there's no issues. I live with my grandmom and she's always talking about how she wants to live in a peaceful neighborhood so that would perfevt for the senior citezens if they lived in a utopian society. There would be no type of violence.