Some Natural Phenomena – 3

Some Natural Phenomena – 3

8th Grade

10 Qs

quiz-placeholder

Similar activities

Non Contact Forces Electrical Field

Non Contact Forces Electrical Field

8th Grade

8 Qs

U2:L1 - Electric Forces Act on Charged Objects

U2:L1 - Electric Forces Act on Charged Objects

8th Grade

15 Qs

Electric charges at rest

Electric charges at rest

6th - 12th Grade

10 Qs

Objects Charged

Objects Charged

8th Grade

15 Qs

Electric Force

Electric Force

8th Grade

9 Qs

Electricity and Electrostatic Charge

Electricity and Electrostatic Charge

8th Grade - University

15 Qs

Electromagnetic Force

Electromagnetic Force

6th Grade - University

15 Qs

Physical or Chemical Change?

Physical or Chemical Change?

8th Grade

15 Qs

Some Natural Phenomena – 3

Some Natural Phenomena – 3

Assessment

Quiz

Science, Physics

8th Grade

Easy

Created by

Aishwaria Murthy

Used 63+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following cannot be charged easily by friction?

(a) A plastic scale

(b) A copper rod

(c) An inflated balloon

(d) A woollen cloth.Ans.

2.

OPEN ENDED QUESTION

3 mins • 1 pt

What damage is caused by lightning?

Evaluate responses using AI:

OFF

Answer explanation

Ans. When lightning strikes a tree, it can burn up the tree. And when a person is hit by lightning during a thunderstorm, then electric energy passes through the body of the person due to which the person get severe burns and get killed. Thus, it can cause a lot of destruction by damaging property, trees and killing people.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When a glass rod is rubbed with a piece of silk cloth the rod

(a) and the cloth both acquire positive charge.

(b) becomes positively charged while the cloth has a negative charge.

(c) and the cloth both acquire negative charge.

(d) becomes negatively charged while the cloth has a positive charge.

4.

OPEN ENDED QUESTION

3 mins • 1 pt

What will happen when the metal top of an electroscope is touched with a glass rod which has been rubbed with silk cloth? Give reason for your answer.

Evaluate responses using AI:

OFF

Answer explanation

Ans. The aluminium foil strips receive the same charge from the charged glass rod through the paper clip. The strips carrying similar charges repel each other and they become wide open.

5.

OPEN ENDED QUESTION

3 mins • 1 pt

What happens when you touch the paper clip of a self-made Electroscope? Why does it happen? What is this process called?

Evaluate responses using AI:

OFF

Answer explanation

Ans. Every time the foil strips collapse as soon as we touch the paperclip with hand. The reason is that the foil strips lose charge to the earth through our body. The process of transferring of charge from a charged object to the earth is called earthing.

6.

OPEN ENDED QUESTION

3 mins • 1 pt

How can we determine if an object is charged or not?

Evaluate responses using AI:

OFF

Answer explanation

Ans. An electroscope may be used to detect whether a body is charged or not. When the object is touched with the metal cap of an electroscope, both the metal cap and the leaves acquire the same charge from the charged object through the paper clip. It will cause the leaves to diverge showing that the object was charged.

7.

OPEN ENDED QUESTION

3 mins • 1 pt

What is lightning conductor? How does it work?

Or

How does a lightning conductor protect a tall building?

Evaluate responses using AI:

OFF

Answer explanation

Ans. Lightning Conductor is a device used to protect buildings from the effect of lightning. A metallic rod, taller than the building, is installed in the walls of the building during its construction. One end of the rod is kept out in the air and the other is buried deep in the ground. The rod provides easy route for the transfer of electric charge to the ground.

Create a free account and access millions of resources

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

By signing up, you agree to our Terms of Service & Privacy Policy

Already have an account?