Conduction, Induction, Friction

Negative charge is formed when there is an excess amount of

• Electrons
• Neutrons
• Protons

Tags

NGSS.MS-PS2-3

Opposite charges ______ each other

• Attract
• Repel
• Do nothing

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

• They are equal
• There are more protons than electrons
• The protons and and neutrons must be equal
• There are more electrons than protons

Tags

NGSS.HS-PS1-7

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

• attracted to / repelled by
• attracted to / attracted to
• repelled by / attracted to
• repelled by / repelled by

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

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

Tags

NGSS.HS-PS2-4

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

• Friction
• Conduction
• Induction
• 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 _____.

• Conductor
• Diode
• Insulator
• Polarizer

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

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

• Conduction
• Convection
• Friction
• Induction

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

• Conduction
• Convection
• Friction
• Induction

Tags

NGSS.MS-PS2-5

Only the __ move to create unbalanced charges.

• Neutrons
• Protons
• Electrons
• Static Electricity

Tags

NGSS.HS-PS2-5