NSO Level 1- Science Olympiad (SOF) Class 9: Questions 556 - 561 of 2138

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Question 556

Question MCQ▾

A meteor is falling. How much gravitational acceleration would it experience when its height from the surface of the earth is equal to five times the radius of the earth? (Given that the acceleration due to gravity on the surface of the earth is )

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 557

Question MCQ▾

The mass of a sphere is three times of the mass of another sphere . The sphere moves at velocity of the sphere . The ratio of the kinetic energy of sphere to that of is:

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 558

Question MCQ▾

In a steel block is released from a height of and an identical block made up of wooden is released from same height simultaneously, in vacuum, then which blocks reach the ground first?

Choices

Choice (4)Response

a.

Wooden block

b.

Steel block

c.

Steel and Wooden block reach at same time

d.

None of the above

Edit

Question 559

Question MCQ▾

A man walks in first 10 min and in next . The velocity at the end of from the start is,

Choices

Choice (4)Response

a.

b.

c.

d.

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Question 560

Question MCQ▾

The dimension formula of the impulse is:

Choices

Choice (4)Response

a.

b.

c.

d.

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Question 561

Question MCQ▾

Animals with backbone is known as

Choices

Choice (4)Response

a.

Arthropods

b.

Vertebrate

c.

Annelids

d.

Invertebrate

Edit