# Physics [NSTSE (National Science Talent Search Exam- Unified Council) Class 7]: Questions 19 - 24 of 191

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## Passage

Answer the following questions with respect to the figure shown below:

## Question number: 19 (1 of 3 Based on Passage) Show Passage

Physics
Edit

### Question

MCQ▾

Reena was making tea in the kitchen, she noticed that after a while, vapors started coming from the pan. What conversion possibly was happened?

### Choices

Choice (4)Response

a.

Substance A → Substance B

b.

Substance B → Substance C

c.

Substance C → Substance B

d.

Substance A → Substance C

## Question number: 20 (2 of 3 Based on Passage) Show Passage

Physics
Edit

### Question

MCQ▾

When condensation process is carried out, what conversion would take place?

### Choices

Choice (4)Response

a.

Substance C → Substance B

b.

Substance B → Substance C

c.

Substance A → Substance B

d.

Substance A → Substance C

## Question number: 21 (3 of 3 Based on Passage) Show Passage

Physics
Edit

### Question

MCQ▾

Substance B is converted to substance A. Which process is being carried out?

### Choices

Choice (4)Response

a.

Freezing

b.

Sublimation

c.

Condensation

d.

Boiling

## Question number: 22

Physics
Edit

### Question

MCQ▾

Which of them is heterotroph?

### Choices

Choice (4)Response

a.

Pitcher plant

b.

Insectivorous plants

c.

Parasitic plant

d.

All a. , b. and c. are correct

## Question number: 23

Physics
Edit

### Question

MCQ▾

is the average body temperature of?

### Choices

Choice (4)Response

a.

Tortoise

b.

Humans

c.

Cats

d.

Dogs

## Question number: 24

Edit

### Question

MCQ▾

A train covers some distance in 6 hr. at a speed of 120 km/hr. At what speed the train should travel to cover the same distance in half the time taken.

### Choices

Choice (4)Response

a.

Half the initial speed

b.

Half the distance

c.

Double the distance

d.

Double the initial speed