7.1 Electrical Charge ม3

Two like charges:

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

Tags

NGSS.MS-PS2-3

Most atoms have a _________________ charge

• positive
• neutral
• negative
• all atoms are different in charge

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

• neutrons
• protons
• electrons
• none of these

Tags

NGSS.MS-PS2-5

Plastic is an example of _______.

• an insulator
• a conductor

Which of the following are Conductors of Electricity?

(multiple answers)

• copper

• rubber

• aluminum

• wood

• gold

Which of the following are Conductors of Electricity?

(multiple answers)

• gold

• cloth

• sand

• aluminum

Which of the following are Insulators of Electricity?

(multiple answers)

• wood

• rubber

• gold

• glass

• copper

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

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

The magnitude of the electric force between two objects depends upon what factors? CHOOSE ALL THAT APPLY!

• their charges

• the distance between their centers

• their masses

• their velocities

Lighning rods are designed to provide a safe pathway to the earth for the electrical discharge. This is called?

• Earthing

• Grounding

• Emulsifying

• Darkening