CHAPTER 3

3.1 Storyboard

Figure 3.1: Storyboard sketch

Figure 3.1 shows the draft of storyboard sketch for this task. At the beginning, we start with

introduction of Force, F in coulombs law theory. Then we proceed with formula that being used to

find force using coulombs law. We assume a positive charge as a boy while negative charge as a girl.

Then we proceed with explanation about what happens when same polarity charges and different

polarity charges met. For both conditions, we also put some examples on calculating the force that

being produced when same polarity charges and different polarity charges met.

3.2 Project Description

Figure 3.2: Slide 1

Figure 3.2 shows the Force from the Coulomb’s Law which is created between two charges either in

same polarity or different polarity. The formula for the Force is

F=¿kQ 1Q2∨ ¿R2 ¿ (3.1)

Figure 3.3: Slide 2

Figure 3.3 above shows from the formula given (3.1), F is represents for resulting force between two

charges. K is for coulomb constant which is equal to 9x109 N (m2/c2) while Q1 and Q2 is the value for

the amount of charge for each particles and R is represents the distance between two charges.

Figure 3.4: Slide 3

Figure 3.5: Slide 4

These Figures 3.4 and 3.5 shows the simple concept for more understanding about Force. Positive

charge is represent by male while positive charge is represent for female.

Figure 3.6: Slide 5

Figure 3.7: Slide 6

Figure 3.8: Slide 7

These Figures 3.6, 3.7 and 3.8 shows the opposite gender will attract each other while for same

gender; it will push away each other. Similar also with the concept of the force between two charges

such as one positive and one negative or vice versa move towards each other. Meanwhile, for two

positive or two negative push away from each other.

Figure 3.9: Slide 8

Figure 3.10: Slide 9

Figure 3.9 and 3.10 shows the explanation example of different polarity of two charges. When

positive charge move directly towards negative charge, a Force was create. This force can be

representing by F12. F stand by Force, 1 is representing the location of the Force and 2 are representing

by the cause of the Force. This also vice versa with Force that created at negative charge (F21).

Figure 3.11: Slide 10

Figure 3.10 shows the example of different polarity of two charges. Force at charge positive and

negative can be calculated by using formula (3.1). Assume positive charge, Q1 is 1C while for

negative charge, Q2 is -1C. The distance between two charges, R is 1m. By substitute the value given

into the formula, we can get F= 9x109N.

Figure 3.12: Slide 11

Figure 3.13: Slide 12

These both Figures 3.12 and 3.13 show the example of same polarity of two charges. When both of

positive charges meet up, it will move away from each other. A Force was creating. This force can be

representing by F12. Forces are created at Q1 due to charges in Q2.

Figure 3.14: Slide 13

Figure 3.14 shows the example of same polarity of two charges. Force at both positive charges can be

calculated by using formula (3.1). Assume positive charge, Q1 is 6µC while for another positive

charge, Q2 is 14µC. The distance between two charges, R is 10cm. By substitute the value given into

the formula, we can get F= 75.6N.