Some Natural Phenomena (CBSE Class-8 Science): Questions 1 - 7 of 37

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Question number: 1

» Some Natural Phenomena » Earthquakes » A Seismograph

MCQ▾

Question

Seismic waves of earthquake can be detected with a sensitive instrument called as:

Choices

Choice (4) Response

a.

Seismograph

b.

Richter scale

c.

Electroscope

d.

All of the above

Question number: 2

» Some Natural Phenomena » Earthquakes » What Causes an Earthquake?

MCQ▾

Question

Boundaries of the tectonic plates are weak zones. These weak zones are called as:

Choices

Choice (4) Response

a.

Fault zone

b.

Seismic zone

c.

Both a. and b. are correct

d.

None of the above

Question number: 3

» Some Natural Phenomena » Charging by Rubbing » Concept of Charged Objects

MCQ▾

Question

Charged objects are defined as:

Choices

Choice (4) Response

a.

Allowing the charge to flow to the earth

b.

Property of objects due to which it applies and experiences electric force

c.

Producing charge on a body by rubbing

d.

An arrangement to deduct charge

Question number: 4

» Some Natural Phenomena » Earthquakes » What Causes an Earthquake?

MCQ▾

Question

Major cause of the earthquake is:

Choices

Choice (4) Response

a.

Movement of the tectonic plates

b.

Movement of the middle layer of earth

c.

Movement of the earth

d.

Question does not provide sufficient data or is vague

Question number: 5

» Some Natural Phenomena » Earthquakes » Structure of the Earth

MCQ▾

Question

Innermost layer core of the earth consists of:

Choices

Choice (4) Response

a.

Solid iron and nickel

b.

Silicate rock

c.

Molten iron and nickel

d.

Both a. and c. are correct

Question number: 6

» Some Natural Phenomena » Types of Charges and Their Interactions » Like Charges Repel Each Other

MCQ▾

Question

Like charges:

Choices

Choice (4) Response

a.

Shows no reaction

b.

Repel each other

c.

Attract each other

d.

Question does not provide sufficient data or is vague

Question number: 7

» Some Natural Phenomena » Charging by Rubbing » Charging of Objects by Rubbing

MCQ▾

Question

Take a rubber balloons rub it with wool and bring it close to a wall. What do you find?

Choices

Choice (4) Response

a.

Wool gets charged

b.

Balloons stick to the wall

c.

Balloons does not get charged

d.

Wall gets charged

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