https://padlet.com/tec430/j50b2rgim9za Please review to Review Ques # 1-5 AND Columb's Law problems 1-3 (Both in Schoology with padlet link) en-us 2017-04-05 15:03:35 UTC 2017-05-26 06:06:47 UTC hello@padlet.com kaylayim5 https://padlet.com/tec430/j50b2rgim9za/wish/164911728 1) The magnitude of the wool will be equal to the magnitude of the rod's charge.
2)Millikan's oil drop experiment revealed that charge is quantized.
3) The number of electrons that make up 10C of charge is
10/(1.602x10^-19) = 6.24x10^19
4)The charged tape creates opposite charges on the parts of the desk which is not charged and hence it is attracted.
5) Metals are conductors and can be charged by induction. Plastic is synthetic and it basically cannot stay hot for a long time.
1) (8.99x10^9) (-8x10^-6) (8x10^-6)/ (.05)^2 = -230.14N
2)a.((12.0*10^-9)(-18.0*10^-9))/(0.300^2)
=  -2.16*10^-5 N
b.
(8.99*10^9)((-3.0*10^-9)/(0.300))^2
= 8.99*10^-7
3)-175N= (8.99x10^9)(60x10^-6)(50x10^-6)/d^2
d= .39m
 ]]> 2017-04-05 15:25:04 UTC https://padlet.com/tec430/j50b2rgim9za/wish/164911728 agutala https://padlet.com/tec430/j50b2rgim9za/wish/164911940 1. I can conclude that the magnitude of the wool's charge after the rubbing process is grounded
2. It reveals that charge can is measured in positivity and negativity
3. 10.0C * (6.242 X 10^18) = 6.242 x 10^19 
4. The tape is attracted to the negatively charged electrons on the surface of the table.
5. Metals, such as copper have loose and freely moving electrons on the surface of the atom. (Electron sea) This is why they are more conductive than other substances. 

Coulomb's Law: 
1. (8.99 * 10^9) x (-8 * 10^-6) ^2/(.05^2) = -230.14N
3. (8.99 * 10^9) x (60 * 10^-6) x (50x10^-6)/d^2 = -175N
2. (8.99 * 10^9) x ((3.0 * 10^-9)/(.3)^2 = 8.99 x 10&-7]]> 2017-04-05 15:25:41 UTC https://padlet.com/tec430/j50b2rgim9za/wish/164911940 https://padlet.com/tec430/j50b2rgim9za/wish/164912155 Review Questions:
1.) What I can conclude about the magnitude of the wool's charge after the rubbing process is that it is equal to the magnitude of the rod's charge.  
2.) Millikan's Oil Drop experiment revealed about its electrical charge that the electric charge is quantized. 
3.) The number of electrons that make up 10. C of charge is 
10/(1.602x10^-19) =6.24 x10^19
4.) Pulling off the tape and finding that areas of my desk are attracted to it, is because the charged tape includes opposite charges on the parts of the desk which is not charges and therefore it is attracted.
5.) Metals, such as copper and silver, can be charged by induction, while plastics cannot because of their structure and the material they are made up of. Put a plastic plate in the microwave and its not hot, but put a metal plate in the microwave and it is hot.    
Coulomb's Law: 
1.) ((9x10^9)x(-8)(8))/(5^2)= 230N
2.) A.) ((9x10^9)x(12x10^-9)x(-18x10^-9))/(.3^2)= 2.2x10^-5
B.) ((9x10^0)x(-3x10^-9)^2)/(.3^2)= 9.0x10^-7
3.) 175= ((8.99x10^-9) (60x10^-6x50x10^-6))/d^2= .39]]> 2017-04-05 15:26:18 UTC https://padlet.com/tec430/j50b2rgim9za/wish/164912155 https://padlet.com/tec430/j50b2rgim9za/wish/164912227 1. It's equal to the magnitude of the rod's charge.
2. The experiment revealed the charge of an electron in numbers
3. 10 / 1.60217662 × 10^-19 = 6.242*10^19 electrons
4. The tape becomes negatively charged when it gets pulled off
5. Plastics are insulators so charge can't move through them and induction doesn't happen

1. ((8.99*10^9)(-8.0*10^-6)(8.0*10^-6))/(0.05^2) = -230.14 N
2a. ((12.0*10^-9)(-18.0*10^-9))/(0.300^2) = -2.16*10^-5 N
2b. (8.99*10^9)((-3.0*10^-9)/(0.300))^2 = 8.99*10^-7
3. 175 = ((8.99*10^-9)(60*10^-6*50*10^-6))/d^2 = 0.39]]> 2017-04-05 15:26:30 UTC https://padlet.com/tec430/j50b2rgim9za/wish/164912227 aahmed5 https://padlet.com/tec430/j50b2rgim9za/wish/164912392 1.  The magnitude is equal to the rod's charge.

2. It reveals that the charge of an electron. 

3. 10 / 1.60217662 x 10-19 = 6.242 * 10^19

4. Since you quickly pull off the tape, the tape will produce a static charge. 

5. Metals conduct electricity while something like rubber insulates electricity. Metals are able to be charged by induction, while insulators cannot.

Coulumb's Law

1. ((8.99*10^9)(-8.0*10^-6)(8.0*10^-6))/(0.05^2) = -230.14 N

2. (8.99 * 10^9) x (60 * 10^-6) x (50x10^-6)/d^2 = -175N

3. -175N= (8.99x10^9)(60x10^-6)(50x10^-6)/d^2
d= .39m


]]> 2017-04-05 15:27:00 UTC https://padlet.com/tec430/j50b2rgim9za/wish/164912392 https://padlet.com/tec430/j50b2rgim9za/wish/164912408 1. The magnitude of the wools charge is equal to the 
2. The Millikan experiment is what let us discover the exact charge of an electron
3. 10 / 1.60217662x10^-19 = 6.242*10^]]> 2017-04-05 15:27:02 UTC https://padlet.com/tec430/j50b2rgim9za/wish/164912408 alin3 https://padlet.com/tec430/j50b2rgim9za/wish/164912453 1. After the rubbing process, the wool must have gained as much of a positive charge as the rod gained a negative charge because electrons have been transferred from the wool to the rod.
2. Millikan's oil-drop experiment revealed that electric charge is based around (i.e. a multiple of) the charge of an electron, -1.602 × 10⁻¹⁹ C.
3. 10.0 C (6.242 × 10¹⁸ e / 1 C) = 6.242 × 10¹⁹ e
4. When you remove the piece of tape from your desk, it acquires a charge from the desk. This charged tape is attracted to the neutral object because electrostatic induction occurs (charges in the neutral object move, causing it to develop a positive and negative end).
5. In order for charging by induction to occur, electrons must be able to move freely between the objects. Electrons are able to travel between conductors such as metal but cannot travel between insulators such as plastic.

1. k = 8.99 × 10⁹ N-m² / C²
Q₁ = -8.0 μC = -8.0 × 10^-6 C
Q₂ = 8.0 μC = 8.0 × 10^-6 C
d = 5.0 cm = 0.05 m
F = (8.99 × 10⁹ N-m² / C² × -8.0 × 10-⁶ C × 8.0 × 10-⁶ C) / (0.05 m)² = -230.144 N → -230 N (230 N, attractive)
2. a. k = 8.99 × 10⁹ N-m² / C²
Q₁ = 12 × 10^-9 C
Q₂ = -18 × 10^-9 C
d = 0.30 m
F = (8.99 × 10⁹ N-m² / C² × 12 × 10^-9 C × -18 × 10^-9 C) / (0.30 m)² = -2.158 × 10^-5 N → -2.2 × 10^-5 N (2.2 × 10^-5 N, attractive)
b. k = 8.99 × 10⁹ N-m² / C²
Q₁ = -3 × 10^-9 C
Q₂ = -3 × 10^-9 C
d = 0.30 m
F = (8.99 × 10⁹ N-m² / C² × -3 × 10^-9 C × -3 × 10^-9 C) / (0.30 m)² = 8.99 × 10^-7 N → 9 × 10^-7 N, repulsive
3. F = 175 N
k = 8.99 × 10⁹ N-m² / C²
Q₁ = 60 μC = 6.00 × 10^-5 C
Q₂ = 50 μC = 5.00 × 10^-5 C
d² = (8.99 × 10⁹ N-m² / C² × 6.00 × 10^-5 C × 5.00 × 10^-5 C) / 175 N = 0.154 m²
d = √(0.154 m²) = 0.393 m]]> 2017-04-05 15:27:10 UTC https://padlet.com/tec430/j50b2rgim9za/wish/164912453 aloeb1 https://padlet.com/tec430/j50b2rgim9za/wish/164912608 1. The rubber is an insulator and the wool is also an insulator, but through the rubbing process the charge would transfer from object to object.
2. Millikan's oil-drop experiment revealed that the charge of the electron influences the charge of the overall electric charge.
3. Since the equation for the excess electrons is given by the equation Q/E, the excess electron count is 10/-1.6x10^-19 =6.24x10^19.
4. If you stick the tape on the desk and pull it off really quick, it is because it has a static charge.
5. Metals are conductors, so they are able to be charged by induction, and the plastic materials would not because they are insulators.
Coulomb's Law Practice
1. ((8.99*10^9)(-8.0*10^-6)(8.0*10^-6))/(0.05^2) 
= -230.14 N but attractive
2a. ((12.0*10^-9)(-18.0*10^-9))/(0.300^2) 
=  -2.16*10^-5 N repulsive (like me hahaha)
2b. (8.99*10^9)((-3.0*10^-9)/(0.300))^2  
= 8.99*10^-7  N attractive
3. 175 = ((8.99*10^-9)(60*10^-6*50*10^-6))/d^2 
= 0.39 meters]]> 2017-04-05 15:27:34 UTC https://padlet.com/tec430/j50b2rgim9za/wish/164912608 https://padlet.com/tec430/j50b2rgim9za/wish/164912619 1) The magnitude is equivalent to the charge of the rod.
2) The Millikan experiment helped us discover the exact charge of an electron.
3)  10 / 1.60217662 × 10^-19 = 6.242*10^19 e
4) The static charge causes it to be attracted to other areas of the desk.
5) Plastic materials are insulators which means that induction would not occur.
Coulomb's Law
1
((8.99*10^9)(-8.0*10^-6)(8.0*10^-6))/(0.05^2)
= -230.14 N
2a
((12.0*10^-9)(-18.0*10^-9))/(0.300^2)
=  -2.16*10^-5 N
2b
(8.99*10^9)((-3.0*10^-9)/(0.300))^2 
= 8.99*10^-7
3
175 = ((8.99*10^-9)(60*10^-6*50*10^-6))/d^2
= 0.39 ]]> 2017-04-05 15:27:35 UTC https://padlet.com/tec430/j50b2rgim9za/wish/164912619 https://padlet.com/tec430/j50b2rgim9za/wish/164912622 1. It means that it is equal to the rods charge. The electrons went from the wool to the rod and they both have and equal positive and negative charge, respectively.
2.  It revealed that the charge is quantized.
3.  10/-1.6x10^-19= 6.24x10^19
4.  The tape received an opposite charge from the desk when ripped off and then it is now attracted to the opposite charges of the desk.
5. Plastic does not allow the charges to move freely within the material unlike metal.

1. ((8.99*10^9)(-8.0*10^-6)(8.0*10^-6))/(0.05^2) = -230.14 N
2a. ((12.0*10^-9)(-18.0*10^-9))/(0.300^2) = 2.16*10^-5 N
2b. (8.99*10^9)((-3.0*10^-9)/(0.300))^2 = 8.99*10^-7
3. 175 = ((8.99*10^-9)(60*10^-6*50*10^-6))/d^2 = 0.39]]> 2017-04-05 15:27:35 UTC https://padlet.com/tec430/j50b2rgim9za/wish/164912622 https://padlet.com/tec430/j50b2rgim9za/wish/164912626 1. magnitude = equal to the charge of the rod ]]> 2017-04-05 15:27:36 UTC https://padlet.com/tec430/j50b2rgim9za/wish/164912626 https://padlet.com/tec430/j50b2rgim9za/wish/164912831 1.)  It is equal to the magnitude of the rod's charge.  The wool exhibited the Law of Conservation of Charge, charge was transferred from the wool to the rod. 
2.) It revealed the charge if an electron
3.) The number of electrons that make up 10C charge is 10/(1.602x10^-19) = 6.24x10^19
4.) The tape becomes negatively charged when it is pulled off the desk and attracts other areas of the desk because it induced an opposite surface charge on the desk.
5.) Most plastics are electrical insulators so charge cannot move through them .

1.) (8.99x10^9)(-8x10^-6)(8x10^-6)/(0.05^2) = -230.144 N
2a.) (12x10^-9)(-18x10^-9)/(0.300)^2=  -2.16x10^-5 N
2b.) (8.99x10^9)(-3x10^-9)/(0.300)^2= 8.99x10^-7
3.) 175= (8.99x10^-9)(60x10^-6x50x10^-6)/d^2= 0.]]> 2017-04-05 15:28:10 UTC https://padlet.com/tec430/j50b2rgim9za/wish/164912831 https://padlet.com/tec430/j50b2rgim9za/wish/164913003 1.) The rod's charge is equal to the magnitude 
2.) The oil drop experiment revealed that the charge is quantized
3.) 10/1.60217662 x 10^-19=6.24 * 10^19
4.) Static charge causes it to be attracted to the other areas of the desk 
5.) charge can not move through plastic because plastics are insulators so induction does not occur
Coulombs's Law
1.) (9*10*9)*(-8)*(8)/(5^2)=230N
2.) a.) (9*10^9)*(12*10^-9)*(-18*10^-9)/(0.3^2)= -2.16*10^-7
b.) =8.99*10^-7
3.) 175=(8.99*10^-9) (60*10^-6*50*10^-6)/d^2= 0.39]]> 2017-04-05 15:28:37 UTC https://padlet.com/tec430/j50b2rgim9za/wish/164913003 https://padlet.com/tec430/j50b2rgim9za/wish/164913139 1) The charge of the rod is equal to the magnitude
2)It reveals the charge of an electron
3) 6.242 x 10^19 electrons
4) The tape received an opposite charge from the desk when ripped off and then it is now attracted to the opposite charges of the desk.
5. Plastic does not allow the charges to move freely within the material unlike metal.
Coulomb's Law
1)((8.99*10^9)(-8*10^6)
(8*10^6))/(.05^2)= -230.14 N
2a)((12*10^-9)(-18*10^-9))/(.3^2)= -2.16*10^-5 N
2b)(8.99*10^9)((-3*10^-9)/(.3))^2=
8.99*10^-7
3)175=((8.99*10^-9)(60*10^-6*50*10^-6))/d^2= .39]]> 2017-04-05 15:28:56 UTC https://padlet.com/tec430/j50b2rgim9za/wish/164913139 https://padlet.com/tec430/j50b2rgim9za/wish/164916709         Review
1. The magnitude of the wool's charge is positive because it rubbed off its negative charge onto the rubber.
2. Millikan's old drop experiment determined the size of the charge on an electron. It also revealed that there was a smallest 'unit' charge, or that charge is 'quantized'.
3. Number of excess electrons = Q/E = 10/-1.6x10^-19
          =6.24x10^19
4. The tape has become charged so it is attracted to the areas that do not have a charge because it is trying to transmit the extra electrons.
5. Plastic materials do not conduct electricity. In order to charge by induction, the charge has to be able to move within the material. Plastics and other materials that do not conduct electricity do not allow charges to move freely.
            Practice A
1. ((9*10^9)*(-8)*(8))/(5^2)= 230N
2. a) ((9*10^9)*(12*10^-9)*(-18*10^-9))/(0.3^2)= 2.2*10^-5
     b) ((9*10^9)*(-3*10^-9)^2)/(0.3^2)= 9.0*10^-7
3. 175=( (5*10^-5)*(6*10^-5)*(9&10^9))/x^2
   x= 0.393 cm]]> 2017-04-05 15:37:44 UTC https://padlet.com/tec430/j50b2rgim9za/wish/164916709 https://padlet.com/tec430/j50b2rgim9za/wish/165216305 1. The magnitude is equal to the charge of the rod after its rubbed.
2. Millikan´s oil drop experiment reveal that the electric charge is quantized.
3. 10/1.602x10^-19=6.24 x10^19
4. The tape become opposite charged which is the same as uncharged area of the desk.
5. Because the structure of plastic is different from metal.

Coulomb´s law
1. (8.99*10^9)(-8*10^6)
(8*10^6))/(0.05^2)= -230.14 N
2. ((12.0*10^-9)(-18.0*10^-9))/(0.300^2)
= -2.16*10^-5  N
3. 175 = ((8.99*10^-9)(60*10^-6*50*10^-6))/d^2 = 0.39]]> 2017-04-06 17:30:43 UTC https://padlet.com/tec430/j50b2rgim9za/wish/165216305 https://padlet.com/tec430/j50b2rgim9za/wish/169220610 1. The magnitude of the wool is equal or equivalent to the charge of the rod.
2. Millikan's Oil Drop Experiment discovered what an electrical charge's is.
3. 10/1,60217662 x 10^-19 
4. When the tape is pulled off it can be observed that there is attraction. This attraction occurs because of the tape's opposite charges to the properties/charges of the desks which makes the two attract.
5. Plastics are insulators which means they do not support the flow of electricity unlike conductors, a good example being metals, which can be charged by induction and have electricity flow through them.
Coulomb's Law Questions:
1. (8.99 x 10^9)(-8 x 10^6)--> (8 x 10^6)/(.05^2)= -230.14N
2a. (12 x 10 ^-9)(-18 x 10^-9)/(.300^2)= -2.16 x 10^-5 N
2b. (8.99 x 10^9)(-3 x 10^-9)/(.3)^2= 8.99 x 10^
3. 175= ((8.99) x 10^-9)(60 x 10^-6*50 x 10^-6))/d^2=.39]]> 2017-05-01 16:36:39 UTC https://padlet.com/tec430/j50b2rgim9za/wish/169220610 https://padlet.com/tec430/j50b2rgim9za/wish/173943106 1. The magnitude of the wool's charge is positive because it rubbed off its negative charge onto the rubber.
2. The Millikan experiment helped us discover the exact charge of an electron.
3. 10 / 1.60217662 × 10^-19 = 6.242*10^19 e
1) (8.99x10^9) (-8x10^-6) (8x10^-6)/ (.05)^2 = -230.14N
2)a.((12.0*10^-9)(-18.0*10^-9))/(0.300^2)
=  -2.16*10^-5 N
b.
(8.99*10^9)((-3.0*10^-9)/(0.300))^2
= 8.99*10^-7
3)-175N= (8.99x10^9)(60x10^-6)(50x10^-6)/d^2
d= .39m

]]> 2017-05-26 06:04:35 UTC https://padlet.com/tec430/j50b2rgim9za/wish/173943106