Electric Fields

A pair of opposite electric charges of equal magnitude is called a(n)

• dipole.

• point charge.

• electric field.

• field line.

Tags

NGSS.HS-PS2-4

The area around a charged object that can exert a force on other charged objects is an electric _____.

Tags

NGSS.HS-PS3-5

An electric field is represented by the force on which particle?

• a neutron

• a dipole

• a negative test charge

• a positive test charge

A negative test charge experiences a force to the right as a result of an electric field. Which is the best conclusion to draw based on this description?

• The electric field points to the left because the force on a negative charge is opposite to the direction of the field.

• The electric field points to the right because the force on a negative charge is in the same direction as the field.

• No conclusion can be drawn because the sign of the charge creating the field is unknown.

• No conclusion can be drawn because the amount of charge on the test charge is unknown.

Tags

NGSS.HS-PS3-5

What is the direction of the electric field at a point directly to the left of a positive charge, Q?

• up

• down

• left

• right

What is the direction of the electric field at a point directly below a negative charge, Q?

• up

• down

• left

• right

Which best describes the electric field created by a positive charge?

• It circles clockwise around the charge.

• It circles counterclockwise around the charge.

• Its rays point away from the charge.

• Its rays point toward the charge.

Tags

NGSS.HS-PS3-5

An electric field around two charged objects is shown. What are the charges of objects X and Y?

• X: negative
  Y: positive

• X: positive
  Y: positive

• X: negative
  Y: negative

• X: positive
  Y: negative

Tags

NGSS.HS-PS3-5

NGSS.HS-PS2-4

NGSS.HS-PS2-5

Which statements about electric field lines are correct? Check all that apply.

• They point toward a positive charge.

• They point toward a negative charge.

• They point away from a positive charge.

• They point away from a negative charge.

• They cross over one another between charges.

The diagram shows the electric field in the vicinity of a charge.

At which point is the electric field strongest?

Tags

NGSS.HS-PS3-5