Electric Force

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

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

If the distance between 2 charges doubles, what happens to the electrostatic force?

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

If the distance between two electric charges is reduced by half, what happens to the electrostatic force?

• Quadruples
• Doubles
• Triples
• Reduces by half

Electrostatic force F is directly proportional to:

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

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

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

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

• 2.5E11 N

• -2.5E11 N

• -7.5E-10 N

What variable do meters represent?

• Electrostatic Charge
• Force
• Distance
• Mass

What variable do "Newtons" represent?

• Electrostatic Charge
• Force
• Distance
• Mass

What variable do Coulombs represent?

• Electrostatic Charge
• Force
• Distance
• Mass

Two oppositely charged particles are held in place near each other. When the particles are released, what will most likely happen?

• the will accelerate towards each other
• they will accelerate away from each other
• they will move towards each other at a constant speed
• they will move away from each other at a constant speed