[Science Booklet] Year 7 Electricity Part I Quiz 4

What particles are found in the nucleus of an atom?

• Electrons and protons

• Protons and neutrons

• Electrons and neutrons

• Only protons

What is the outermost electron shell of an atom called?

• Inner shell

• Core shell

• Valence shell

• Orbital shell

Which type of material allows free electrons to move freely throughout the solid?

• Insulators

• Semiconductors

• Conductors

• Dielectrics

What happens to an atom if it gains electrons?

• It becomes positively charged.

• It becomes negatively charged.

• It remains neutral.

• It becomes a neutron.

What is electric current defined as?

• The static accumulation of charge on a surface.

• The movement of electric charge in a wire over a period of time.

• The resistance to the flow of electrons.

• The potential difference between two points.