# NSO Level 1- Science Olympiad (SOF) Class 9: Questions 994 - 998 of 1128

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## Question 994

### Question

MCQ▾

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 995

### Question

MCQ▾

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 996

### Question

MCQ▾

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 997

### Question

MCQ▾

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

## Question 998

### Question

MCQ▾

The momentum of a body is dependent on

### Choices

Choice (4)Response

a.

Mass and velocity

b.

Time duration of the force

c.

Magnitude of the force exerted

d.

All a., b. and c. are correct

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