measuring electric field

At which point is the electric field the weakest?

• A because it is the furthest away
• A because the field lines are further apart
• C because the field lines are further apart
• C  because it is the furthest away

At which point is the electric field the strongest

• A
• B
• C
• D

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

• +,+
• +,-
• -,+
• -,-

The electrical force between charges is strongest when the charges are

• close together
• far apart
•  the electric force is constant everywhere.
• there is no pattern

The electric field lines for a positive charge is always directed away from the charge. True or False?

• True

• False

Which graph best represents the relationship between the strength of an electric field and distance from a point charge?

• 
• 
• 
• 

What does it mean when the electric field lines are close together?

• the field is positive
• the field is negative
• The field is strong
• the field is weak

Electric lines of force about negative point charge are

• Circular, anticlockwise

• Circular, clockwise

• Radial, outward

• Radial, inward

The electric field lines for a positive charge is always directed away from the charge. True or False?

• True

• False

Electricity is made up of:

• Protons
• Neutrons
• Electrons
• Molecules