Physics-Motion and Force (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 1 - 5 of 32

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Question number: 1

» Physics » Motion and Force

MCQ▾

Question

A helicopter, moving vertically upwards, releases a packet when it is at a certain height above the ground. The packet initially moves upwards for a time t 1 and then falls downwards for a time t 2 until it reaches the ground. Then

Choices

Choice (4) Response

a.

Data insufficient

b.

t1 = t2

c.

t1 < t2

d.

t1 > t2

Question number: 2

» Physics » Motion and Force

MCQ▾

Question

A particle starts from rest, accelerates at 2 m/s 2 for 10 s and then goes for constant speed for 30 s and then decelerates at 4 m/s 2 till it stops. What is the distance travelled by it?

Choices

Choice (4) Response

a.

750 m

b.

700 m

c.

800 m

d.

850 m

Question number: 3

» Physics » Motion and Force

MCQ▾

Question

A dip needle in a plane perpendicular to magnetic meridian will remain

Choices

Choice (4) Response

a.

in any direction

b.

horizontal

c.

vertical

d.

at an angle of dip to the horizontal

Question number: 4

» Physics » Motion and Force

MCQ▾

Question

A proton enters a magnetic field of flux density 1.5 wb/m 2 with a speed of 2 × 10 7 m/s at an angle of 30° with the field. The force on a proton will be

Choices

Choice (4) Response

a.

24 × 10 -12 N

b.

2.4x10- 12 N

c.

0.24x10- 12 N

d.

0.024x10- 12 N

Question number: 5

» Physics » Motion and Force

MCQ▾

Question

An iron ball and a wooden ball of the same radius are released from the same height in vacuum. They take the same time to reach the ground. The reason for this is

Choices

Choice (4) Response

a.

acceleration due to gravity in vacuum is same irrespective of the size and mass of the body

b.

there is no acceleration due to gravity in vacuum

c.

acceleration due to gravity in vacuum depends upon the mass of the body

d.

in vacuum, there is a resistance offered to the motion of the body and this resistance depends upon the mass of the body

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