NSTSE (National Science Talent Search Exam- Unified Council) Class 4: Questions 1720 - 1723 of 1971

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Question 1720

Question

Match List-Ⅰ List-Ⅱ▾

Match the following devices and their energy transformations.

List-Ⅰ (Devices)List-Ⅱ (Energy Transformations)
(A)

Petrol engine

(i)

Electrical to light and sound

(B)

Battery

(ii)

Heat to mechanical

(C)

Television

(iii)

Electrical to light

(D)

Electric bulb

(iv)

Electrical to mechanical

(E)

Electric fan

(v)

Chemical to electrical

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)
  • (E)

a.

  • (iv)
  • (i)
  • (v)
  • (iii)
  • (ii)

b.

  • (ii)
  • (v)
  • (i)
  • (iii)
  • (iv)

c.

  • (iv)
  • (v)
  • (iii)
  • (ii)
  • (i)

d.

  • (i)
  • (iii)
  • (iv)
  • (ii)
  • (v)

Question 1721

Question

MCQ▾

Which of the following requires more energy from man?

Choices

Choice (4)Response

a.

Image Shows Activity That Requires More Energy: Choice A

b.

Image Shows Activity That Requires More Energy: Choice B

c.

Image Shows Activity That Requires More Energy: Choice C

d.

Image Shows Activity That Requires More Energy: Choice D

Question 1722

Question

MCQ▾

Electrical energy can be produced by:

Choices

Choice (4)Response

a.

Coal

b.

Water

c.

Uranium

d.

All a., b. and c. are correct

Question 1723

Question

MCQ▾

If we take three samples of a solid, liquid and gas, each have a fixed volume of , then which of them will have the most number of molecules?

Choices

Choice (4)Response

a.

Liquid

b.

Gas

c.

Solid

d.

It will be same in all the three.

Developed by: