Electrical Forces

Charged objects can be attracted to:

• Neutral objects 
• Objects with the opposite charge
• Both

The transfer of what type of atomic particle is responsible for the static charges on objects?

• neutrons
• protons
• electrons
• none of these

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

• a net negative charge
• a magnetic force
• a net positive charge

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

• The balloon will be attracted to the rod
• The balloon will be repelled by the rod
• The balloon will remain in place
• The balloon will spin in circles

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

• friction.
• induction.
• contact.
• static electricity

What types of charges repel?

• Positive and Positive
• Positive and Neutral
• Negative and Neutral
• Neutral and Neutral

The closer the charges, the ___________ the force between them

• closer
• further
• stronger
• weaker

Which part of the atom is positively charged?

• Proton
• Neutron
• Electron

Neutrons have a __________ charge.

• Negative

• Positive

• Neutral

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