Static Electricity and Coulomb's Law

What happens to the force between two charged objects when you double the distance between them?

• 2X
• 1/2X
• 4X
• 1/4X

Tags

NGSS.HS-PS2-4

What happens to the force between two charged objects if you triple the magnitude of one charge? 

• 1/3X
• 3X
• 1/9X
• 9X

Tags

NGSS.HS-PS2-4

The electrical force between charges is strongest when the charges are

• close together
• far apart
•  the electric force is constant everywhere.
• there is no pattern

Tags

NGSS.HS-PS2-4

A material in which electrons are not able to move easily 

• Circuit 
• Insulator 
• Resistance 
• Conductor

Which of these substances conducts electricity the best?

• wood
• brick
• copper
• plastic

Tags

NGSS.HS-PS1-3

Which of the following best describes an electrostatic charge?

• the field surrounding Earth produced by its North and South poles

• a buildup or loss of electrons on an object, due to friction, induction, or conduction

• the opposite sides of a magnet

• the force of gravity pulling objects to Earth

Tags

NGSS.MS-PS2-5

Which of the following will repel one another?

• the North pole and South pole of a magnet

• a negatively-charged balloon and your positively-charged hair

• two positively-charged objects

• two objects that have the opposite charge

Tags

NGSS.HS-PS3-5

A positively charged rod is touched to a pith ball. The pith ball will become positive due to the process of

• Induction

• Conduction

A material through which charges will not move easily.

• Conductor

• Insulator

• Facilitators

• Plastics

A student creates identical electrical charges on identical balloons by rubbing them with a wool cloth. The balloons repel each other. According to Coulomb's Law, which should the student do to increase the electrical force of repulsion between these balloons?

• Increase the distance between the balloons.

• Increase the charge on one of the balloons.

• Increase the masses of the balloons.

Tags

NGSS.HS-PS2-4