Electric fields

An electrostatic force of 2 X 10². newtons is exerted on a charge of 4 coulomb at point P in an electric field. The magnitude of the electric field intensity at P is

• 8 X 10² N/C
• 5 N/C
• 2 X 10^-2 N/C
• 50 N/C

Tags

NGSS.HS-PS2-4

Where can an electric field be found?

• below a force field

• in a gravitational field

• in the space surrounding a charged object

• outside of a magnetic field

Tags

NGSS.HS-PS3-5

Which quantity and unit are correctly paired?

• electric field strength and N/C
• electricity and Coulombs
• electrostatic force and electrons
• electric field strength and E

Tags

NGSS.HS-PS2-4

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

• 
• 
• 
• 

Tags

NGSS.HS-PS2-4

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

An object with a net charge of 4.80 x 10^-6 coulomb experiences an electrostatic force having a magnitude of 6.00 x 10^-2 newton when placed near a negatively charged metal sphere. What is the electric field strength at this location?

• 2.88 x 10^-8 N/C directed toward the sphere

• 1.25 x 10⁴ N/C directed toward the sphere

• 2.88 x 10^-8 N/C directed away from the sphere

• 1.25 x 10⁴ N/C directed away from the sphere

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

Based on the arrangement of the electric field lines in the diagram, what are the charges?

• both charges are the same

• the charges are opposite

• they are neutral; no charge

Tags

NGSS.HS-PS2-4

Which statement best describes the electric fields in the image?

• The charges are neutral.

• Both charges are negative, so the field lines are alike.

• The field lines move toward a positive charge and away from a negative charge.

• The field lines move away from a positive charge and toward a negative charge.

Tags

NGSS.HS-PS3-5

Which statement describes what is happening in the image at the space indicated by the green arrow?

• The field lines are repelled by like charges.

• The field lines are repelled by opposite charges.

• The field lines are attracted by the like charges.

• The field lines are attracted by the opposite charges.

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

What happens to the field strength as the distance between two charged objects decreases?

• the strength stays the same

• the strength increases

• the strength decreases

• the strength fluctuates between positive and negative

Tags

NGSS.HS-PS2-4