Science-Class-8 NCERT (NCERT Based General Studies (GS)): Questions 345 - 352 of 468

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Question number: 345

» Science » Class-8 NCERT » Sound (Sound Needs a Medium for Propagation)

MCQ▾

Question

Intensity of sound is called as:

Choices

Choice (4) Response

a.

Oscillation

b.

Shrillness

c.

Loudness

d.

Amplitude

Question number: 346

» Science » Class-8 NCERT » Sound (Amplitude, Time Period & Frequency of Vibration)

MCQ▾

Question

The maximum vibration of an object is called:

Choices

Choice (4) Response

a.

Pitch

b.

Vibration

c.

Oscillation

d.

Amplitude

Question number: 347

» Science » Class-8 NCERT » Friction (Friction- a Necessary Evil)

MCQ▾

Question

Friction helps to:

Choices

Choice (4) Response

a.

Walk or run

b.

Holding objects

c.

Write on paper

d.

All a. , b. and c. are correct

Question number: 348

» Science » Class-8 NCERT » Some Natural Phenomena (Types of Charges and Their Interactions)

MCQ▾

Question

Unlike charges:

Choices

Choice (4) Response

a.

Shows no reaction

b.

Attract each other

c.

Repel each other

d.

All of the above

Question number: 349

» Science » Class-8 NCERT » Some Natural Phenomena (Earthquakes)

MCQ▾

Question

If you are outside in an earthquake what to do:

Choices

Choice (4) Response

a.

Move away from buildings, trees, street lights and power lines

b.

Stay outside

c.

All of the above

d.

Question does not provide sufficient data or is vague

Question number: 350

» Science » Class-8 NCERT » Sound (Property of Sound)

MCQ▾

Question

Noise pollution is defined as:

Choices

Choice (4) Response

a.

Presence of excessive or unwanted sound in the atmosphere

b.

Pleasant sounds

c.

Unpleasant sounds

d.

None of the above

Question number: 351

» Science » Class-8 NCERT » Chemical Effects of Electric Current (Electroplating)

MCQ▾

Question

Galvanisation is defined as:

Choices

Choice (4) Response

a.

Plating of Zinc on to iron

b.

Plating of silver on cutlery

c.

Plating of tin on iron

d.

All of the above

Question number: 352

» Science » Class-8 NCERT » Some Natural Phenomena (Transfer of Charge)

MCQ▾

Question

When an object loses its charge through an agent into the earth the object is:

Choices

Choice (4) Response

a.

Discharged

b.

Charged

c.

Earthed

d.

Grounded

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