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

What variable do "Newtons" represent?

• Electrostatic Charge
• Force
• Distance
• Mass

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-3

Calculate the force exerted between two charged objects separated by a distance of 0.6 m. One object has a charge of -5 C and the other has a charge of +2.0 C.

• -1.5E-11 N
• 2.5E-11 N
• -2.5E11 N
• -7.5E-10 N

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 or induction

• the opposite sides of a magnet

• the force of gravity pulling objects to Earth

Tags

NGSS.HS-PS2-4

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

Approximately how much force would be generated by two charged objects held 2 m apart, if q₁ has a charge of 3.0 C and q₂ has a charge of 4.0 C?

• 0.5 N

• 1.5 N

• 3 N

• 6 N

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5