# Physics-Motion and Force (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 6 - 11 of 34

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## Question number: 6

» Physics » Motion and Force

MCQ▾

### Question

When the speed of a moving body is doubled

### Choices

Choice (4) Response

a.

its kinetic energy is doubled

b.

its potential energy is doubled

c.

its acceleration is doubled

d.

its momentum is doubled

## Question number: 7

» Physics » Motion and Force

MCQ▾

### Question

A rider on horseback falls when horse starts running all of a sudden because

### Choices

Choice (4) Response

a.

inertia of rest keeps the upper part of body at rest whereas lower part of the body moves forward with the horse

b.

rider is taken back

c.

rider is suddenly afraid of falling

d.

All of the above

## Question number: 8

» Physics » Motion and Force

MCQ▾

### Question

A particle is moving on a circular path with constant speed, and then its acceleration will be

### Choices

Choice (4) Response

a.

external radial acceleration

b.

internal radial acceleration

c.

zero

d.

constant acceleration

## Question number: 9

» Physics » Motion and Force

MCQ▾

### Question

In case of uniform circular motion, which of the following physical quantity does not remain constant?

### Choices

Choice (4) Response

a.

Mass

b.

Speed

c.

Momentum

d.

Kinetic energy

## Question number: 10

» Physics » Motion and Force

MCQ▾

### Question

When a body moves with a constant speed along a circle

### Choices

Choice (4) Response

a.

no force acts on the body

b.

no acceleration is produced in the body

c.

no work is done on it

d.

its velocity remains constant

## Question number: 11

» Physics » Motion and Force

MCQ▾

### Question

The lines of force of uniform magnetic field

### Choices

Choice (4) Response

a.

intersect

b.

must be convergent

c.

must be parallel to each other

d.

must be divergent

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