WorksheetsWhat is Electricity Quiz
Total questions: 17
Worksheet time: 9mins
Which subatomic particle is responsible for electricity?
electron
proton
The movement (or flow) of electrons forms a
Electrical resistance
Electric current
Atoms are neutral if
The number of protons = the number of neutrons
The number of protons = the number of electrons
The charge of an atom can change
when its number of neutrons changes
when it gains or loses electrons
when it gains or loses protons
An excess (greater amount) of electrons will result in a
positive ion
negative ion
Materials, such as metals, with weakly bound valence electrons are known as
conductors
insulators
Non-metals, such as carbon and oxygen, are known as
conductors
insulators
Why is copper a good conductor?
Because its electrons easily jump from one energy level to another
Because it has only one valence electron that it does not hold onto very strongly
Why is copper a good conductor?
Because its electrons easily jump from one energy level to another
Because it has only one valence electron that it does not hold onto very tightly
Give an example of a good conductor?
Give an example of a good insulator?
What is the current?
The flow of electrons
The flow of protons
The flow of neutrons
What is static charge?
Do you think electric current flows more easily in conductors or insulators? Why?
Which material is most likely to prevent the flow of electric current?
Aluminum
Silver
Glass
Copper
What happens to an atom when it loses an electron?
It becomes a neutron
It remains neutral
It becomes a negative ion
It becomes a positive ion
Which property makes metals good conductors of electricity?
Lack of electrons
Freely moving electrons
High resistance
Tightly bound electrons
