Introduction to Coulomb's Law

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

• The attractive force increases

• The magnitude of the electric force decreases

• The repulsive force increases

• The magnitude of their charges increases

Tags

NGSS.HS-PS2-4

What happens to the electric force between two charges when the distance is tripled?

• 3 times less electric force

• 3 time more electric force

• 9 times less electric force

• 9 times more electric force

Tags

NGSS.HS-PS2-4

Electrostatic force F is directly proportional to:

• r^2 (distance squared)
• q1
• q2
• both q1 and q2

Tags

NGSS.HS-PS2-4

When distance increases, electrostatic force ____________; we call this relationship ____________ proportional

• decreases;directly
• decreases;inversely
• increases;inversely
• increases;directly

Tags

NGSS.HS-PS2-4

If each of the charges doubles, what happens to the force?

• Quadruples
• Doubles
• Stays the same
• Reduced by half

Tags

NGSS.HS-PS2-4

If the distance doubles, what happens to the force?

• Reduced by half
• Reduced by 1/4
• Stays the same
• Quadruples

Tags

NGSS.HS-PS2-4

If the distance is reduced by half, what happens to the force?

• Quadruples
• Doubles
• Triples
• Reduces by half

Tags

NGSS.HS-PS2-4

• doubling q1 only
• doubling d, q1, and q2
• doubling d and q1 only
• doubling d only

Tags

NGSS.HS-PS2-4

Which of the following procedures will double the force on two point charges?

• halving the distance between the charges   
• doubling the magnitude of one charge
• halving the magnitude of one charge
• doubling the distance between the charges

Tags

NGSS.HS-PS2-4

Coulomb's law says that the force between any two charges depends

• directly on the size of the charges

• inversely on the square of the distance between the charges

• both are correct

Tags

NGSS.HS-PS2-4