Electric Field Strength

Mr. Anderson explains electric field strength in AP Physics Essentials video 27. He uses simulations to demonstrate how increasing charge affects electric field strength, showing a direct relationship between the two. Positive charges push away, while negative charges attract. The video uses arrows to represent field strength and employs a PhET simulation for quantitative analysis, illustrating the concept with measurable data.

What happens to the electric field strength when the charge is increased from one coulomb to two coulombs?

• The electric field strength increases.

• The electric field strength remains the same.

• The electric field strength decreases.

• The electric field strength becomes zero.

How are electric field lines oriented around a positive charge?

• They point towards the charge.

• They do not form any pattern.

• They move away from the charge.

• They form a circular pattern around the charge.

What happens to the electric field lines when a negative charge is added?

• They form a circular pattern.

• They point towards the charge.

• They point away from the charge.

• They disappear completely.

In the PhET simulation, what is the electric field strength when a charge is added and the measurement shows 14 volts per meter?

• 28 volts per meter

• 21 volts per meter

• 14 volts per meter

• 7 volts per meter

What is the relationship between the amount of charge and the electric field strength?

• It is a random relationship.

• It is a direct relationship.

• It is an inverse relationship.

• There is no relationship.