NSTSE (National Science Talent Search Exam- Unified Council) Class 7: Questions 1136 - 1140 of 1732

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Question 1136

Question

MCQ▾

Chemical reactions does not produce any heat energy if:

Choices

Choice (4)Response

a.

Energy absorbed by the reactants is less than the energy released by the products.

b.

Energy absorbed by the reactants is more than the energy released by the products.

c.

Energy absorbed by the reactants is equal to the energy released by the products.

d.

Question does not provide sufficient data or is vague

Question 1137

Question

MCQ▾

Which one is not an oscillatory motion:

Figure Showing Motion of Your Hands While Running

Choices

Choice (4)Response

a.

Figure Showing an Electric Bell

b.

Figure Showing a Pendulum

c.

Motion of the hammer of an electric bell.

d.

None of the above

Question 1138

Question

MCQ▾

Which of the following always lie inside the triangle?

Choices

Choice (4)Response

a.

Orthocenter

b.

Circumcenter

c.

Incenter

d.

None of the above

Question 1139

Question

MCQ▾

The Circumcenter of a triangle is the point where

Choices

Choice (4)Response

a.

The altitudes meet

b.

The medians meet

c.

The right bisectors of the sides of the triangle meet

d.

The bisectors of the angles of the triangle meet

Question 1140

Question

MCQ▾

The arithmetic mean of first seven odd numbers is

Choices

Choice (4)Response

a.

5

b.

11

c.

14

d.

7

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