electric fields

Define electric field strength

• Force per unit charge

• Force per unit positive charge acting on a stationary point charge

• Rate of acceleration of a charge in an electric field

• Electric force per unit charge acting on a stationary point charge in an electric field

Electric field strength equation

• E = F/C

• E = F/Q

• E = FQ

• E = FC

Explain what is meant by an electric field

• Space in which a charge has an electric potential energy

• The field produced by an electric charge

• Area where a charge experiences a force

• The electric force per unit charge

Direction of electric field is

• From positive charge to negative charge

• From charge negative to positive charge

• From higher potential to lower potential

• From lower potential to higher potential

In the diagram below, P is a point near a negatively charged sphere. Which direction best represents the direction of the electric field at point P?

• Right
• Left
• Up 
• Down

Tags

NGSS.HS-PS2-4

Which of the following statements is false about electric field lines

• electric field lines cannot cross
• electric field lines point away from positive charge
• electric field lines are always straight lines
• electric field lines show how a proton would move in an electric field

At which point is the electric field the strongest

• A
• B
• C
• D

Tags

NGSS.HS-PS2-4

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

Tags

NGSS.HS-PS2-4

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

Consider the electric field lines drawn at the right for a configuration of two charges. Several locations are labeled on the diagram. Which of these shows the ranking in order of weakest to strongest correctly

• A, E, C
• D, E, C
• D, B, A
• A, D, B

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5