# NSO Level 1- Science Olympiad (SOF) Class 8: Questions 820 - 825 of 1076

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## Passage

Suhana took a tin and filled water in it. She drilled holes A, B and C on it as shown in the figure.

## Question number: 820 (1 of 2 Based on Passage) Show Passage

Edit
MCQ▾

### Question

The pressure of the out flowing water would be maximum in hole

### Choices

Choice (4) Response

a.

A

b.

B

c.

C

d.

None of the above

## Question number: 821 (2 of 2 Based on Passage) Show Passage

Edit
MCQ▾

### Question

In Fig X, the pressure of the out flowing water would be minimum in hole

### Choices

Choice (4) Response

a.

B

b.

A

c.

C

d.

All of the above

## Question number: 822

Edit
MCQ▾

### Question

The effect of friction on a moving object would be

### Choices

Choice (4) Response

a.

It retards the motion

b.

It supports the motion

c.

It stops the motion

d.

It accelerates the motion

## Question number: 823

Edit
MCQ▾

### Question

When the shutters of a dam is opened, water comes out with greater force from lower shutters than the upper ones. The reason would be

### Choices

Choice (4) Response

a.

The pressure at which the water comes out is inversely proportional to its depth

b.

The pressure at which the water comes out is directly proportional to its depth

c.

Atmospheric pressure experiences more at deeper points

d.

Question does not provide sufficient data or is vague

## Question number: 824

Edit
MCQ▾

### Question

The force created due to relative movement between two surfaces is called

### Choices

Choice (4) Response

a.

Static electricity

b.

Magnetic force

c.

Friction

d.

Gravity

## Question number: 825

Edit
MCQ▾

### Question

The pressure can be reduced by

### Choices

Choice (4) Response

a.

Increasing the surface area on which the force acts

b.

Increasing the force

c.

Without changing the area

d.

Decreasing the surface area on which the force acts

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