Electric force, field, and charge (3.14)

Consider the electric field lines shown in the diagram below. From the diagram, it is apparent that object A is ____ and object B is ____.

• +,+
• +,-
• -,+
• -,-

Tags

NGSS.HS-PS2-4

The diagram shows two charged objects, X and Y.

Based on the field lines, what are the charges of the objects?

• X: positive

  Y: negative

• X: negative

  Y: positive

• X: negative

  Y: negative

• X: positive

  Y: positive

Tags

NGSS.HS-PS2-4

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

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

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

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

• Quadruples
• Doubles
• Triples
• Reduces by half

Tags

NGSS.HS-PS2-4

What variable do "Newtons" represent?

• Electrostatic Charge
• Force
• Distance
• Mass

Tags

NGSS.HS-PS2-1

What variable do Coulombs represent?

• Electrostatic Charge
• Force
• Distance
• Mass

Tags

NGSS.HS-PS2-4

The Electric Force is strongest when charges are...

• close together
• far apart
• the electric force is constant everywhere

Tags

NGSS.HS-PS2-4

What equation is this:
F_E= (k*q₁*q₂) / r² 

• Coulombs law
• Ohms law
• Newtons law

Tags

NGSS.HS-PS2-4

If an object has a net charge of +2e this means it has

• lost 2 electrons
• gained 2 electrons
• lost 2 protons
• gained 2 protons

Tags

NGSS.HS-PS2-4

What is the magnitude of the electric force between two charges of 1.0C separated by a distance of 1.0m?

• 9.0x10^9 N

• 1.1x10^10 N

• 9.0x10^19 N

• 1.1x10^-10 N

Tags

NGSS.HS-PS2-4