Coulomb's Law

Find the magnitude of the force between two charges of 1.0 C each which are 1.0 meter apart?

• 9E-9 N
• 9E9 N
• 1.1E10 N
• 1.1E-10 N

Tags

NGSS.HS-PS2-4

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

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

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

What happens to the force between two charged objects if you reduce the distance between two objects from 30 cm to 10 cm?

• 1/3X
• 20X
• 3X
• 9X

Tags

NGSS.HS-PS2-4

What happens to the force between two charged objects if you double the distance between them and double the magnitude of one charge?

• 4X
• 6X
• 1/2X
• 1/6X

Tags

NGSS.HS-PS2-4

What happens to the force between two charged objects when you triple the magnitude of both charges?

• 3X
• 6X
• 9X
• 1/6X

Tags

NGSS.HS-PS2-4