Electrostatics

Two like charges

•  neutralize each other.

• repel each other. 

• must be neutrons. 

• attract each other.

Tags

NGSS.MS-PS2-3

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 

Tags

NGSS.HS-PS1-2

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.MS-PS2-3

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

If two balloons have the same charge, what will happen if you place them close to each other?

• Nothing

• They will be attracted

• They will pop

• They will push each other away.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What types of charges attract?

• Positive and Positive

• Positive and Neutral

• Negative and Neutral

• Positive and Negative

Tags

NGSS.MS-PS2-3

Opposite charges

• attract

• repel

• do not interact

Tags

NGSS.MS-PS2-3

Why does the child's hair stick up?

• The boy is grounded since he's at the bottom of the slide

• He gained a charge from the slide, and since he's not grounded, his hairs have the same charge so they repel one another

• He gained a charge from the slide, and since he's not grounded, his hairs have opposite charges so they repel one another

• When hair is neutral, some have a positive side and some have negative side, so they will attract to each other, making it stand up

Tags

NGSS.MS-PS2-3

The charge of an electron is 

• positive. 

• negative. 

• Electrons have no charge

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

• positive

• negative