Electrostatics

A repelling force occurs between two charges objects with the charges are of 

• unlike signs
• like signs
• equal magnitude
• unequal magnitude

Tags

NGSS.HS-PS2-4

A attracting force occurs between two charged objects when the charges are of 

• unlike signs
• like signs
• equal magnitude
• unequal magnitude

Tags

NGSS.HS-PS2-4

A attracting force occurs between two charged objects when the charges are of 

• unlike signs
• like signs
• equal magnitude
• unequal magnitude

Tags

NGSS.MS-PS2-3

electric charge is

• found only in a conductor
• conserved
• found only in insulators
• not conserved

Charge is mostly easily transferred in 

• nonconductors
• conductors
• semiconductors
• insulators

The process of charging a conductor by bringing it near another charged object and then grounding it is called

• contact charging
• induction
• polarization
• neutralization

Both insulators and conductors can be charged by

• grounding
• induction
• polarization
• contact

Electric field strength depends on

• charge and distance
• charge and mass
• coulomb constant and mass
• elementary charge and radius

Tags

NGSS.HS-PS2-4

What occurs when two charges are moved closer together?

• electric field doubles
• Coulomb's law takes effect
• the total charge increases
• the force between the charges increase

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

What is the electric force between an electron and a proton that are separated by a distance of 1.0 x 10 ^-10 m?  is the force attractive or repulsive? 

• attractive; 3.8 x 10^ -8N
• repulsive; 3.5 x 10 ^-10N
• attractive ; 2.3 x 10^-8N
• repulsive; 2.0 x 10^-10N

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5