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Electrostatics Concepts and Principles

Electrostatics Concepts and Principles

Assessment

Interactive Video

Physics

9th - 10th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

Julia Sumner Miller introduces electrostatic phenomena, explaining the historical context and significance of experiments. Through demonstrations with rubber rods, fur, and electroscopes, she illustrates the principles of charging by friction, conduction, and induction. The video also covers protection from electric fields using a wire cage and demonstrates the forces arising from charged bodies. The experiments highlight the foundational concepts of electricity and magnetism.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who was the Greek philosopher that first noted the electrostatic properties of amber?

Thales

Aristotle

Socrates

Plato

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of an experiment that shows no immediate results?

It is always a failure.

It proves the hypothesis wrong.

It can lead to new discoveries.

It should be discarded.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to a rubber rod when it is rubbed with fur?

It becomes positively charged.

It remains neutral.

It loses all charge.

It becomes negatively charged.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the effect of water vapor on electrostatic experiments?

It enhances the charge.

It acts as a good insulator.

It acts as a good conductor.

It has no effect.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the charge on a glass rod rubbed with silk?

No charge

Neutral

Positive

Negative

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of an electroscope?

To detect magnetic fields.

To measure weight.

To detect electric charge.

To measure temperature.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can an electroscope be charged by induction?

By bringing a charged object close and grounding the electroscope.

By direct contact with a charged object.

By rubbing it with silk.

By placing it in water.

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