Static Electricity

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Static Electricity

Oct 27 2015

Source: TTS Haryana Sci...

Summary Information

Keywords:

Electricity, Friction, Force, positive and negative charge

Topic:

Physics

Workplace Skills:

Raising Questions

Discussion

Teamwork

Independent Thinking

Target Grade (Ages):

Grade 6 (Ages 11-12)

Grade 7 (Ages 12-13)

Grade 8 (Ages 13-14)

Diversity Indicators:

This lesson plan is suitable for all learners.

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LESSON

Goals and Prerequisites

Goals:

Describe the behavior of static electricity as observed in nature and everyday occurrences.
Students will gain an understanding of the forces at work during a thunderstorm through: - using balloons to create static electricity.
To demonstrate the positive and negative attraction.

Prerequisites:

Student should know-

Different types of forces.
Everything is made up of atoms and atoms are made up of electron, proton and neutron.

Instructional Objective(s)

At the end of this lesson studend should be able -

To explore static electricity to help them discover what lightning is, how and why it occurs.
Like charges repel and unlike charges attract each other.

Instructional Resources

Background:

All materials contain millions of tiny particles, called protons and electrons that have
electric charges. Protons have positive charges, and electrons negative ones.
Typically, they balance each other, but sometimes when two surfaces rub together,
some of the electrons rub off one surface onto the other, and we can have static
electricity. Materials with like charges (all positive or all negative) move away from
each other; those with opposite charges attract each other.

Materials:

Rubber balloons
Thread

Procedure:

1. Blow 3-4 balloons.

2. Tie the mouths of two balloons with two threads of equal lengths.

3. Tie the mouth of other two balloons without threads.

4. Brought close to each other the two balloons having threads. (Observe result)

5. Balloons neither attract nor repel each other.

6. Rub both the balloons once in dry hair and brought near each other and observe result. (Discuss)

7. Rub other balloon (without thread) once in dry hair 2-3 times and let free the balloon in hair. The balloon does not fall. (Discuss)

8. Brought the rubbed balloon in contact to wall. The balloon does not fall. (Discuss)

Conclusion: After rubbing the balloon against your clothes, it will attract your hair and make it "fly" toward the balloon. Balloon when rubbed once in dry hair gets charged

Concept in daily life:

While combing hairs, the comb gets electron & becomes negatively charged & attracts pieces of paper.
Lightning is a powerful form of static electricity.

Assessments and Rubrics

Ask students to write a list of four occurrences of static electricity in everyday life.
Ask students to write a paragraph describing the relationship between static electricity and lightning.
Ask students to write a paragraph that explains the difference between static electricity and current electricity.

External Resources

http://www.uen.org/Lessonplan/preview?LPid=2226

http://science-notebook.com/electricity01.html

http://www.sciencemadesimple.com/static.html

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