NSO Level 1- Science Olympiad (SOF) Class 9: Questions 288 - 292 of 1128

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Question 288

Question

MCQ▾

Which of the following can be made into crystal?

Choices

Choice (4)Response

a.

Virus

b.

Sperm

c.

Bacterium

d.

Amoeba

Question 289

Question

MCQ▾

Which of the following statements are true about the green house effect?

Choices

Choice (4)Response

a.

Average temperatures increase world-wide due to green house effect

b.

Carbon monoxide is one of the green gases

c.

It increases the percentage of gases that prevent the escape of heat

d.

Water vapour is one of the main greenhouse gases

Question 290

Question

MCQ▾

Take two glasses. Fill the first glass with cold water and the second with hot water. Put one teaspoon full sugar in each glass and stir well. What will be the observation?

Choices

Choice (4)Response

a.

Sugar dissolves faster in the second glass

b.

Sugar does not dissolve in both the glasses

c.

Sugar dissolves faster in the first glass (picture)

d.

Sugar dissolves simultaneously in both the glasses

Question 291

Question

MCQ▾

Identify the particle from the given clue

1. Is negatively charged.

2. Present outside the nucleus of an atom.

3. Has negligible mass.

Choices

Choice (4)Response

a.

Proton

b.

Electron

c.

Neutron

d.

All of the above

Question 292

Question

MCQ▾

Here are some points of difference between speed and velocity. All the points are not true. Find out the in false ones

Table of the Difference between Speed and Velocity
NO.SpeedVelocity
1.Distance covered per unit timeDisplacement per unit time
2.Reduces to zero when the object is at restReduces to zero when comes back to the starting point
3.Changes continuously in a uniform circular motionRemains the same in a uniform circular motion
4.Is a scalar quantityIs a vector quantity

Choices

Choice (4)Response

a.

Point 3

b.

Point 2

c.

Point 4

d.

Point 1

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