Below are images and descriptions of three different arrangements of charges from the ‘Electric Field Hockey’ simulation. Which one of these would result in a goal being scored when the positively-charged puck is released?

Below are images and descriptions of three different arrangements of charges from the ‘Electric Field Hockey’ simulation. Which one of these would result in a goal being scored when the positively-charged puck is released?
Select one:
Arrangement A
Arrangement B
Arrangement C
6- The arrangement below from the ‘Electric Field Hockey’ simulator shows a negatively (­–) charged puck in front of the goal. Directly behind the goal is a line of three charges (–, +, ­–), with a second + charge directly behind the first.
How would the negatively-charged puck behave when it is released, and why?
Select one:
a.
It would not move toward or away from the goal because there are equal numbers of + and – charges behind the goal.
b.
It would be attracted toward the goal because the + charges are both in the middle of the arrangement.
c.
It would repelled away from the goal because taken together, the two negative charges are nearer to it than the two positive charges.
7- When you bring a small object close to a charged tape you find that there is an attraction between them. Considering all the evidence you saw in early in this unit, what can you conclude about the charge of the small object?
Select one:
a.
It has the opposite charge to the tape.
b.
It is uncharged.
c.
Either B or C could be true.
d.
It has the same charge as the tape.
8- In another class, a student drew a diagram and gave an written explanation for what happens when a negatively-charged Styrofoam plate is brought near a soda can electroscope.
Before the plate is brought close to the base end of the soda can electroscope, the positive and negative charges are uniformly distributed in the soda can and the tinsel, and both ends of the soda can are uncharged. When the negatively (–) charged Styrofoam plate is brought next to the electroscope, all of the positive charges in the soda can (and the tinsel) move toward the negatively charged plate because of the Law of Electric Charges, which states that opposite charges attract. All of the negatively charged particles move toward the tinsel end, and into the tinsel, because like charges repel. For that reason, the negatively-charged pieces of tinsel repel each other.
Question 1)
Evaluate the student’s model.
Can the diagram and the written explanation account for the evidence presented in the experiment and simulation movies that you watched in this extension?
Select one:
a.
The diagram can account for the evidence provided by the movies, but the written explanation cannot.
b.
Neither the diagram nor the written explanation can account the evidence provided by the movies.
c.
The written evidence can account for the evidence provided by the movies, but the diagram cannot.
d.
Both the diagram and the written explanation can account for the evidence provided by the movies.
9- Which of the following pieces of evidence should lead the student to change her model (either the diagram, the written explanation, or both)? Choose all answers that apply.
Select one or more:
a.
Evidence or separate knowledge that, while both types of charges can move, they can only move a very short distance in the soda can.
b.
Evidence or separate knowledge that the middle portion of the soda can (between the top and base) is uncharged when the negatively-charged plate is held near the base end.
c.
Evidence that a positively-charged object attracts the tinsel, when the negatively-charged plate is held close to the electroscope’s base side.
d.
Evidence or separate knowledge that only one type of charge (either + or –) can actually move in the electroscope, rather than both types (+ and -) of charges moving.
e.
Evidence that a negatively-charged object repels the tinsel (pushes the tinsel strands together), when the negatively-charged Styrofoam plate is being held close to the electroscope’s base side.