Net Charge

What types of charges repel?

• Positive and Positive

• Positive and Neutral

• Negative and Neutral

• Neutral and Neutral

Tags

NGSS.MS-PS2-3

If a substance has a higher number of electrons than protons on its surface, what type of charge does it have?

• positive charge.

• negative charge.

• neutral charge

• No charge at all

Walking across a carpet is an example of charge being transferred by

• friction.

• induction.

• contact.

• static electricity

To demonstrate static electricity, a teacher takes an inflated balloon and rubs it against his hair.  The rubber balloon picks up electrons from his hair, which makes his hair have

• net negative charge

• magnetic force

• net positive charge

Two small hollow metal spheres hung on insulating threads attract one another as shown. It is known that a positively charged rod will attract sphere A. Which statements can be correctly concluded about the charge on the spheres?

• A has a positive charge

• B has a negative charge

• A and B have opposite charges

• A is neutral

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Why do socks stick together when they come out of the dryer?

• One has a negative charge and the other has a positive charge

• Both have negative charges

• Both have positive charges

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Charged objects can be attracted to:

• Neutral objects 

• Objects with the opposite charge

• Both

Tags

NGSS.MS-PS2-3

A balloon has a negative charge. A glass rod has a positive charge. What will happen when the rod is brought near the balloon?

• the balloon will be attracted to the rod

• the balloon will remain in place

• the balloon will be repelled by the rod

• the balloon will spin in circles

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What is the charge of the electron

• positive

• no charge

• negative

• neutral

Tags

NGSS.MS-PS1-1

NGSS.MS-PS2-3

What types of charges attract?

• Positive and Positive

• Positive and Neutral

• Negative and Neutral

• Positive and Negative