Electricity and Charges Quiz

Negative charge is formed when there is an excess amount of

• Protons

• Neutrons

• Electrons

Opposite charges ______ each other

• Do nothing

• Attract

• Repel

In an electrically neutral object, what must be true about the numbers of protons and electrons?

• There are more electrons than protons

• They are equal

• The protons and and neutrons must be equal

• There are more protons than electrons

An electron is near two opposite charged sheets of metal. The electron is ____ the positive sheet and ____ the negative sheet.

• attracted to / attracted to

• repelled by / attracted to

• attracted to / repelled by

• repelled by / repelled by

When is the electrostatic force between two charges the strongest?

• When charges are very close to each other

• When charges are very far apart from each other

• When the electric field is constant

If a negatively charged rod touches a conductor, the conductor will be charged by what method?

• Conduction

• Induction

• Friction

• Convection

The electrons in a certain material are closely bound to their atoms and cannot move around very much. This material would be an electric _____.

• Polarizer

• Diode

• Conductor

• Insulator

Two storm clouds rub against each other giving one cloud a positive charge and one a negative charge. This is an example of charging by

• Induction

• Friction

• Conduction

• Convection

A charged balloon is brought near an electroscope but DOES NOT touch the electroscope. This is an example of charging by

• Induction

• Conduction

• Convection

• Friction

Only the _____ move to create unbalanced charges.

• Electrons

• Static Electricity

• Protons

• Neutrons