Coulomb's Law

What is the unit for electrostatic charge?

• Coulombs

• Newtons

• Meters

• Joules

Tags

NGSS.HS-PS2-4

A repulsive force exists between which two particles?

• Two neutrons

• An electron and a neutron

• An electron and a proton

• Two protons

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

What does "r" measure?

• the distance between the two charged objects

• the amount of charge carried by the objects

• the amount of force between two charged objects

• the constant value for forces between the objects

Tags

NGSS.HS-PS2-4

What does F_e stand for?

• the electrostatic force

• the symbol for iron

• the constant for the charges

• the charges of the particles

Tags

NGSS.HS-PS2-4

What does q measure?

• the distance between the two charged objects

• the amount of charge carried by the object

• the amount of force between two charged objects

Tags

NGSS.HS-PS2-4

Why are there two q's in the equation?

• because there are two charged objects

• because there are protons and electrons

• because the particles are moving away from each other

• because the particles are moving towards each other

Tags

NGSS.HS-PS2-4

What can you do to increase the value of k?

• change the force

• change the distance

• change the charge

• nothing can be done to change the value of k; it is a constant

Tags

NGSS.HS-PS2-4

An attractive force exists between which two particles?

• Two neutrons

• An electron and a neutron

• An electron and a proton

• Two electrons

Since Coulomb's Law is written as F_e=k\cdot\frac{q_1\cdot q_2}{d^2} this means that as the distance between the two charged objects gets smaller, the electric force ---

• gets weaker
  

• gets stronger
  

• changes unpredictably
  

• does not change
  

Tags

NGSS.HS-PS2-4

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