Lesson 1 Electric Force

Multiple Choice

Which of the following statements best describes a neutral particle?

• It has more positive charges than negative charges.

• It has more negative charges than positive charges.

• It has an equal number of positive and negative charges.

• It has only positive charges.

Open Ended

Why is the concept of electric force significant in understanding natural phenomena like lightning?

Open Ended

Explain how the strength of electric force between two charged particles changes as the distance between them increases.

Multiple Choice

Which of the following statements best describes how electric force acts between charged particles?

• Opposite charges repel each other, and like charges attract.

• Opposite charges attract each other, and like charges repel.

• Both opposite and like charges attract each other.

• Both opposite and like charges repel each other.

Multiple Select

Which of the following are true about electric fields? Select all that apply.

• Electric fields are regions where electric forces are exerted on other charged particles.

• Field lines point in the direction a negative charge would move.

• Electric fields only exist around positive charges.

• Field lines point in the direction a positive charge would be pushed.

Fill in the Blanks

The potential energy of opposite charges

as they get closer together.

Open Ended

Describe the relationship between electric current, voltage, and resistance in a circuit.

Fill in the Blanks

In a circuit, the direction of conventional current is

to the direction of electron flow.

Multiple Choice

Which of the following materials is an electrical conductor?

• Glass

• Rubber

• Copper

• Plastic

Open Ended

Explain the difference between conduction and induction as methods by which objects can become charged.

Fill in the Blanks

Static discharge happens when charge transfers to and from the air until the object is

.

Open Ended

How does the concept of electric force help explain natural phenomena like lightning?

Multiple Choice

What is the main difference between a neutral particle, a negatively charged particle, and a positively charged particle?

• The number of protons and neutrons

• The number of positive and negative charges

• The size of the particle

• The color of the particle