q1Text="
1. Which kind of particles move between two objects when they are rubbed with each other?

1a. Electrons 
1b. Protons
1c. Neutrons

";

q1Feedback =[
"Yes. Electrons from the outer shells of the atoms have high energy and can move from one atom to another and thus from one object to another, by friction.",
"No. Protons are placed in the nucleus of atoms and cannot move away by friction.",
"No. Neutrons are placed in the nucleus of atoms and cannot move away by friction."
];


q2Text="
2. When we rub two objects of different materials, do their outer electrons move preferably to one of them?

2a. No. Electrons move randomly between the objects.
2b. Yes. Electrons move preferably to the object which has less affinity for electrons.
2c. Yes. Electrons move preferably to the object which has more affinity for electrons.

";

q2Feedback =[
"That’s not correct. It depends on their affinity for electrons.",
"That’s not correct.",
"Correct!"
];


q3Text="
3. When we rub two objects of different materials, which of them is electrified?

3a. Only the object which acquires electrons is electrified.
3b. The object which acquires electrons is electrified more than the one which losses electrons.
3c. The objects are electrified with equal amount of charge.
";

q3Feedback =[
"No. Both objects are electrified.",
"Inocorrect",
"Correct"
];

q4Text="
4. When two objects are electrified by friction, what kind of electric charge does each object acquire?
4a. The object which acquires electrons is charged positively and the one which losses electrons negatively.
4b. The object which acquires electrons is charged negatively and the one which losses electrons positively.
4c. Both objects are charged negatively.
";

q4Feedback =[
"Inocorrect. ",
"Correct!",
"Inocorrect. "
];


q5Text="
5. When does electrification by conduction takes place?

5a. When an electrified and a neutral conductor are brought into contact the second is electrified.
5b. When an electrified and a neutral conductor are rubbed with each other the second is electrified.
5c. When two neutral conductors are brought into contact they are both electrified.
";

q5Feedback =[
"Correct",
"No. Rubbing causes electrification by friction.",
"No. One of the two conductors has to be electrified."
];


q6Text="
6. In electrification by conduction between a negatively charged and a neutral conductor:

6a. Some electrons of the negatively charged migrate to the neutral so both conductors have negative charge.
6b. Electrons of the negatively charged attract protons of the neutral that migrate. The second acquires negative charge.
6c. Some electrons of the negatively charged migrate to the neutral that acquires negative charge. The first is charged positively.
";

q6Feedback =[
"Correct",
"No. Protons are placed in the nucleus of the atoms and they cannot move away because of the electric attraction.",
"Not exactly. The negative charge of the initially charged conductor is reduced but it is still negative."
];


q7Text="
7. In electrification by conduction between a positively charged and a neutral conductor:

7a. Some protons of the positively charged migrate to the neutral. Both have positive charge.
7b. Protons of the positively charged attract electrons of the neutral that migrate. The second acquires positive charge.
7c. Protons of the positively charged attract electrons of the neutral that migrate. The first is charged negatively";

q7Feedback =[
"No. Protons n the nucleus of atoms cannot move away.",
"Correct!",
"The positive charge of the initially charged is reduced but it is still positive."
];