PS2.1 and PS2.2

Particles that attract each other are.

• two electrons.

• two protons.

• one proton and one electron.

• one proton and one neutron.

Tags

NGSS.MS-PS2-3

The electric force between two charges increases when

• both charges become negative.

• both charges become positive.

• the charges get closer together.

• the charges get farther apart.

Tags

NGSS.MS-PS2-3

Which best describes an electrically charged object?

• an electron without a static charge

• an object that has gained or lost electrons

• an object that has gained or lost neutrons

• a proton without a static charge

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

An electric field surrounds

• an electron

• a neutron

• both an electron and a neutron

• neither an electron nor a neutron

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which is a good conductor of electricity?

• glass

• gold

• plastic

• wood

The movement of negative charges between nonconductor objects that are touching is called transferring charge by

• conduction

• contact

• induction

• polarization

Which phenomenon is an example of electric discharge?

• friction

• lightning

• magnetism

• static charge

When negative charges concentrate at one end of an object that is made of a conducting material, the object is

• inducted

• insulated

• polarized

• undergoing friction

Which does NOT contain magnetic domains?

• bar magnet

• disc magnet

• paper airplane

• steel nail

In an electric motor, a force is applied to the electromagnet by

• a battery

• a commutator

• an electric current

• a permanent magnet