Answer:
As there are multiple questions, I will attempt to answer them one by one as shown below
Explanation:
1) Charging by FRICTION occurs when electrons are transferred by direct contact between two UNCHARGED objects.
The direct contact of the uncharged objects produces friction, which causes electrons to be transferred.
2) Electric charge :A property of subatomic particles that can exert a force on another object with or without touching.
b) Electron : a negative particle, always in motion, surrounding the nucleus of an atom.
c) Proton : a negative particle, always in motion, surrounding the nucleus of an atom.
d) Attract : what two opposite charges do.
e) Repel : what two like charges do.
3) Induction
Charging by induction occurs when an already charged object is brought near to an another object. In charging by induction, direct contact is not involved.
4) Electric current is caused when electrons flow or move in a wire. These electrons carry a negative charge.
5) Conduction
The negative charge on the rod will flow onto the conductor by conduction once contact is made
6) Electrons move from one object to another
Objects become electrically charged as a result of the movement of electrons form one place to another.
7) Aluminium
Aluminium would be the best conductor because it is a metal that possesses valence electrons which can move in its outer most shell.
8) An insulator is an object that does not permit the flow of electrons in an electric circuit or field.
9) A copper penny
Copper is a metal which also possesses valence electrons which can move or flow in the presence of an electric current. All the other materials are insulators which resist the flow of electrons in an electric field
10) Rubber tire
It is an insulator because rubber resists the flow of electrons from moving through it unlike the other materials which have metallic characteristics. Generally metals are good conductors of electricity
11) The material would be an electric insulator.
This is because the electrons on the material are not free to move around and hence would resist the flow of electrical current
12) There would be no effect when a positively charged rod is brought near a neutral plastic ball because the ball is an insulator and resists the flow of electric charges
13) Opposite charges attract to each other and like charges repel against each other.
14) The negative charges in Can A move away from the balloon.
The cans are metals and hence are conductors which the permit the flow of electrons. However because like charges repel each other, the negative charges in can A move away from the baloon
