Two like charges

•  neutralize each other.
• repel each other. 
• must be neutrons. 
• attract each other.

Tags

NGSS.HS-PS2-4

The charge of an electron is 

• positive. 
• negative. 
• Electrons have no charge

Tags

NGSS.HS-PS2-4

An atom loses an electron.  What type of charge does it have now?

• positive
• negative

Tags

NGSS.HS-PS1-2

An atom gains an electron.  What type of charge does it have now?

• positive
• negative
• No charge

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

When a balloon is rubbed on clothes it acquires a charge by ___________

• Induction
• reduction
• friction 
• concuction

Which of the following is not a good insulator?

• Copper
• Glass
• rubber
• wool

Tags

NGSS.HS-PS3-4

During a physics lab, a plastic strip was rubbed with cotton and became positively charged. The correct explanation for why the plastic strip becomes positively charged is that ...

• the plastic strip acquired extra protons from the cotton.
  
• the plastic strip acquired extra protons from the charging process 
• protons were created as the result of the charging process
  
• the plastic strip lost electrons to the cotton during the charging process 

Insulators are different than conductors in that insulators ____.

• do not contain electrons or protons 
•  do not contain any charge
• have a weaker affinity for electrons 
• do not allow charge to freely move 

A glass rod becomes positively charged when it is rubbed with silk. This net positive charge accumulates because the glass rod

• gains electrons
• loses electrons
• gains protons
• loses protons

Tags

NGSS.HS-PS3-5

When a plastic rod is rubbed with wool, the wool acquires a positive charge because

• protons are transferred from the wool to the rod
• protons are transferred from the rod to the wool
• electrons are transferred from the rod to the wool
• electrons are transferred from the wool to the rod

Tags

NGSS.HS-PS1-2