NSTSE (National Science Talent Search Exam- Unified Council) Class 6: Questions 1918 - 1925 of 2029

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Question number: 1918

» Chemistry » Separation of Substances

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MCQ▾

Question

Who was the first to realise that magnet can attract nails.

Choices

Choice (4)Response

a.

Magnes

b.

Newton

c.

Archimedes

d.

All of the above

Question number: 1919

» Physics » Work and Machines

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MCQ▾

Question

If the efficiency of a simple machine is , and input work done is , then what will be the output work done?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 1920

» Chemistry » Changes Around Us

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MCQ▾

Question

Evaporation takes place at

Choices

Choice (4)Response

a.

100◦ Celsius

b.

Fixed temperature

c.

Any temperature

d.

None of the above

Question number: 1921

» Chemistry » Separation of Substances

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MCQ▾

Question

The magnetic lines of force ________.

Choices

Choice (4)Response

a.

Intersect at 120 degrees

b.

Intersect at 45 degrees

c.

Do not intersect

d.

Intersect at 90 degrees

Question number: 1922

» Physics » Work and Machines

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MCQ▾

Question

Which of the following functions, a gear and pulley can do?

Choices

Choice (4)Response

a.

Multiply Speed

b.

Transfer Energy

c.

Multiply Force

d.

All a. , b. and c. are correct

Question number: 1923

» Chemistry » Separation of Substances

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MCQ▾

Question

Which of the following is a ferromagnetic material?

Choices

Choice (4)Response

a.

Cobalt

b.

Nickel

c.

Iron

d.

All a. , b. and c. are correct

Question number: 1924

» Physics » Work and Machines

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MCQ▾

Question

Which type of simple machine is shown in the figure?

Simple machine

Simple Machine

Choices

Choice (4)Response

a.

Wedge

b.

Pulley

c.

Wheel and Axle

d.

Lever

Question number: 1925

» Chemistry » Separation of Substances

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MCQ▾

Question

The polarity of horse shoe electromagnet can be changed by changing the ________.

Choices

Choice (4)Response

a.

Number of windings

b.

Direction of windings

c.

Material of wire

d.

Question does not provide sufficient data or is vague

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