# NSO Level 1- Science Olympiad (SOF) Class 9: Questions 992 - 997 of 1123

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## Question number: 992

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MCQ▾

### Question

The ceilings of the cinema hall are

### Choices

Choice (4) Response

a.

Flattened

b.

Curved

c.

Cuboidal

d.

Straightened

## Question number: 993

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MCQ▾

### Question

The inertia of an object always tends the object to

### Choices

Choice (4) Response

a.

Resist any change in state

b.

Come back to rest

c.

Increase the velocity

d.

Decrease the speed

## Question number: 994

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MCQ▾

### Question

As the temperature of a medium increases, the velocity of sound passing through that medium

### Choices

Choice (4) Response

a.

Decreases

b.

Remains the same

c.

Increases

d.

All of the above

## Question number: 995

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MCQ▾

### Question

Here are some points to compare velocity and momentum. Some points are wrongly given. Pick out the incorrect ones.

 Point Momentum Velocity 1. The product of mass and velocity The ratio of distance to time 2. Is a vector quantity Is a scalar quantity 3. Rate of change is directly proportional to the force. Rate of change is directly proportional to the force.

### Choices

Choice (4) Response

a.

2

b.

1 and 3

c.

1 and 2

d.

2 and 3

## Question number: 996

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MCQ▾

### Question

A kind of rapid to and fro motion of an object could be its

### Choices

Choice (4) Response

a.

Loudness

b.

Sonic boom

c.

Echo

d.

Vibration

## Question number: 997

Edit
MCQ▾

### Question

The physiological response of the ear to the intensity of sound is called

### Choices

Choice (4) Response

a.

Loudness

b.

Vibration

c.

Oscillation

d.

Echo

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