Coulomb Force (Static) Questions Part 1

1. On the Gizmo, click Show force vector for charge A and Show force vector for charge B. The forces on each charge are represented by the purple and green arrows. The charges of each particle, q_A and q_B, are shown below the particles. Check that each charge is set to 10.0 • 10⁻⁴ C.

a. Observe the arrows representing the Coulomb force between the charges. Do you think this represents an attractive or a repulsive force?

1A answer: I think that charge A and Charge B represent a repulsive force because they are repeling one another (moving in opposite directions which makes them a repulsive force.

b. Change the charge of particle A (q_A) to -10.0. (To change q_A, type a value in the field next to the slider and hit Enter.) You now have a positive and a negative charge (as in the "hair and balloon" experiment). What effect does this have on the arrows? Is this an attractive or repulsive force?

2A answer: When I changed the qa: number from 10 to -10 on charge A the arrows changed to pointing on each other. So now the force is an attractive force.

c. Change the charge of particle B to -10.0. What kind of force is experienced by two negative charges? You can model this by rubbing two balloons and slowly bringing them together.

1c answer: When I changed the B charge from 10 to -10 now the both charges where the same they repelled from each other making it a repulsive force again.

D. Change the charge of particle A back to +10.0. As a rule, what kind of force will result when charges are opposite? What kind of force will result when the particles have the same charge?

1d answer: When the charges are the same the force will repeal but when the forces are opposites then they will attract.

2. Change the charge of particle A to 0.0. A particle with zero charge is neutral.

2a: What happens to the force arrows?

2a answer: when I changed the charge A to 0.0 and the B was the same the lines disappeared and where showing as dots.

2b: What is the force between a charged particle and a neutral particle? Try several values for particle B to see if this is always true. (Note: In reality, neutral objects are composed of charged particles. If you bring a charged object near a

neutral object, the charged particles within the neutral object will rearrange themselves in a process called polarization. This results in an attractive force between the charged object and the neutral object that is not shown in the Gizmo.)

2b answer: When I changed the values for charge B, the charges still stayed Nutrial because one of them has no charge.

3. To see the magnitude of the Coulomb force, click Show vector notation for particle A and particle B. The magnitude of the force (in Newtons) is written |F_A| or |F_B|. Set each charge to 10.0 • 10⁻⁴. Click Show distance and Show grid, and drag the particles together until the distance between them is 30 m.

3a: What is the Coulomb force on particle A?

3a answer:

1. What is the force on particle B?
2. Drag the particles around. Are the forces on particle A and B always equal to one another?

Discription and Examples of Static Electricity

Static electricity is the buildup of a electrical charge on the surface of the object it can form the energy by getting heated up by sun or etc… It builds up to a cretin point when you touch the object it discharges when the spark of electricity is finished, the pictures below show examples of the static electricity.

1.

Static electric spark jumps from finger to doorknob

2.

Contact with the slide has left the hair positively charged so that the individual hairs repel one another. The hair may also be attracted to the negatively charged slide surface.

3.

This diagram shows the flow of static electricity with metel.

How do the lungs work?

The lungs and breathing are the main part of the respiratory system, which is used for breathing. Fresh air comes in through the mouth, down the trachea ( the windpipe), into the lungs through cartilaginous pathways called bronchi and bronchioles, where it is absorbed by tiny air sacs called alveoli. The lungs take in oxygen and get rid of carbon dioxide.

The parts of the digestive system and their functions

The parts of the digestive system are: The mouth is the beginning of the digestive tract; and, in fact, digestion starts here when taking the first bite of food. Chewing breaks the food into pieces that are more easily digested. Esophagus Located in your throat near your trachea (windpipe), the esophagus receives food from your mouth when you swallow. The Stomach holds food while it is being mixed with enzymes that continue the process of breaking down food into a usable form. The small intestine is a 22-foot long muscular tube that breaks down food using enzymes released by the pancreas and bile from the liver. The pancreas secretes digestive enzymes into the duodenum. The Liver function within the digestive system is to process the nutrients absorbed from the small intestine. The gallbladder stores and concentrates bile. he colon is a 6-foot long muscular tube that connects the small intestine to the rectum. Rectum to get rid of wastes. The relationship bettween Cellular and digestive system is the Glucose is oxidized with oxygen during cellular respiration to provide energy

What is My MYP Grade:

I think that my MYP grade is a 6 or 7 because must of the assignments we did i got very good marks on. I think that I improve in my lab report grades my first grades for that was 4 and 4 know I am getting 5 and 6. The only thing i need to improve in is getting homework on time even if you are away and not in school.

The Mouth

The function of the mouth also know as the oral cavity, is to form a receptacle for food or away for food to enter the body, it also begins mechanical digestion through chewing, to swallow food,
and to form words in speech. It can also assist the respiratory system in the passage of air. The Mouth has a cord after it for the food that has been chewed to continue to the rest of the Digestion system it is called the esophagus. The mouth is where mechanical and chemical digestions begins.

Newtons Three Laws Of Motion

In the Video we learned about the Laws of Motion the laws of Motion are the Following:

1. In the absence of a net force, a body either is at rest or moves in a straight line with constant speed.
2. A body experiencing a force F experiences an acceleration a related to F by F = ma, where m is the mass of the body. Alternatively, force is equal to the time derivative of momentum.
3. Whenever a first body exerts a force F on a second body, the second body exerts a force −F on the first body. F and −F are equal in magnitude and opposite in direction.
   

Quoted from Wikipedia.