Static Electricity & Coulomb's Law

 In an electrical interaction, there is an attraction between

•  all charged objects
•  positive charges & negative charges
•  positive charges & positive charges
•  negative charges & negative charges

 What happens to the electrostatic force if the distance between the two charges triples?

•  decreases by 3
•  increases by 9
•  increases by 3
•  decreases by 9

 What happens to the electrostatic force if the strength of both charges triples?

•  decreases by 3
•  increases by 9
•  increases by 3
•  decreases by 9

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

• 2X

• 1/2X

• 4X

• 1/4X

If each of the charges quadruples, what happens to the electrostatic force?

• increases 16 times

• Doubles

• Stays the same

• quadruples

If the distance triples, what happens to the electrostatic force?

• Reduced by half

• Reduced by 1/9

• Stays the same

• Quadruples

As two oppositely charged particles approach each other, what happens to the electrostatic force between them?

• The attractive force increases.

• The magnitude of the electrostatic force decreases.

• The repulsive force increases.

• The magnitude of their charges increases.

If one of the charges doubles, what happens to the electrostatic force?

• it doubles

• it gets cut in half

• it quadruples

• it is cut by 1/4

What does it mean when the electric field lines are close together?

• the field is positive
• the field is negative
• The field is strong
• the field is weak

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

Electrical field lines of a negatively charged object flow _______________.

• Inwards

• Outwards

• Clockwise

• Counter-Clockwise