NSO Level 1- Science Olympiad (SOF) Class 4: Questions 369 - 372 of 435

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Question 369

Question

MCQ▾

Which of these activities pollutes the air?

Choices

Choice (4)Response

a.

Image Shows the Activity Pollutes the Air – Choice A

b.

Image Shows the Activity Pollutes the Air – Choice B

c.

Image Shows the Activity Pollutes the Air – Choice C

d.

All a., b. and c. are correct

Question 370

Question

MCQ▾

When a school-bell is rung, sound is produced.

Which type of conversion of energy represents the above statement?

Choices

Choice (4)Response

a.

Mechanical energy into heat energy

b.

Mechanical energy into sound energy

c.

Electrical energy into heat energy

d.

None of the above

Question 371

Appeared in Year: 2012

Question

MCQ▾

Observe the given figure. Which of the following statements best describes the difference in properties of the two objects A and B?

Figure Shows the Two Objects a and B

Choices

Choice (4)Response

a.

Object A is light but object B is heavy

b.

Object A is soft but object B is hard

c.

Object A is strong but object B is weak

d.

Object A is flexible but object B is stiff

Question 372

Question

MCQ▾

Which of the following activities are source of fuels energy?

Choices

Choice (4)Response

a.

Image Shows the Source of Energy – Choice A

b.

Image Shows the Source of Energy – Choice B

c.

Image Shows the Source of Energy – Choice C

d.

Question does not provide sufficient data or is vague

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