All of Electrostatics

When an object gains electrons it becomes __________

• Neutral

• Positively charged

• Negatively charged

Tags

NGSS.MS-PS2-3

When a silver atom looses an electron, its net charge (in coulombs) is

• +1

• -1

• +1,6 x 10^-19

• -1,6 x 10^-19

Tags

NGSS.HS-PS2-4

When a ballon is rubbed agaist a jersey and brought near a thin stream of tap water. The balloon attracts the thin stream of water because_____

• water is acidic

• water is a base

• water gets polarized

• water is liquid

The charge on a metallic sphere is

• concentrated at the top

• concentrated at the bottom

• evenly distributed

• not distributed at all

Tags

NGSS.MS-PS2-5

An atom of oxygen has 8 protons and 10 electrons, this means the atom is ____________

• positively charged because it has excess electrons

• negatively charged because it has excess electrons

• positively charged because it has a deficiency of electrons

• negatively charged because it has a deficiency of electrons

Tags

NGSS.MS-PS1-1

How do two negative charges interact when they are brought close together?

• repel
• no interaction
• attract
• ground

Tags

NGSS.HS-PS2-4

The part of atom that moves from one object to another ?

• Electrons

• Protons

• Neutrons

Two neutral objects are rubbed together and subsequently become charged. The objects have become charged by the method of _____.

• friction

• conduction

• induction

• polarization

You rub a balloon on your hair and your hair acquires a positive charge. Where do electrons go when you rub a balloon on your hair?

• Onto the balloon

• Into your hair

• Nowhere

What does it mean when the electric field lines are close together?

• the field is positive
• the field is negative
• The field is strong
• the field is weak

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5