Question # 1

The acceleration due to gravity

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Has the same value everywhere in space

Has the same value every where on the earth

varix with altitude on the earth

Is great her on the moon owing to its smaller diameter

Angular acceleration is produced due to

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Centripetal force

Torque

Force

Mass

An object at the end of a spring oscillates with SHM of angular frequency 2 rad s-1 What is the period of oscillation.

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0.32 s

0.50 s

0.80 s

3.1 s

Impulse is equal to.

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F x t/2

\F x t /4

F x t

F x t /m

A body is in a static equilibrium, only when it is

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Moving with uniform velocity

Moving with variable velocity

Moving with uniform acceleration

at rest

Torque is equal to.

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The product of magnitude of force and acceleration

The product of magnitude of force and momentum

The product of magnitude of force and displacement

The product of magnitude of force and angular velocity

The SI unit of coefficient of viscosity of

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kg m s-1

kg m-1 s-1

kg ms -2

A physical quantity not directly involved in rotating motion is.

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Moment of inertia

Mass

Angular velocity

Torque

The source of geothermal energy is

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The fusion in the sun

the radioactive decay in the earths interior

the rotation of earth around the sun

The rotation of earth around its own axis

On the ground the gravitational force on a satellite is W What is the gravitational force on the satellite when at height R/50

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0.96 W

0.98 W

1.04 W

1.02 W

The number 0.02 x 10^-8in standard form will be written as.

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2 x 10^-10

2 x 10^-8

20 x 10^-8

20 x 10^-6

The relation between horse power and watt is.

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1 hp = 546 watts

1 hp = 746 watts

1 hp = 946 watts

1 hp = 1000 watts

When damping is small amplitude of vibrational resonance will be

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small

Large

Infinite

Un changed

If the average velocity of an object is zero in some time internal the displacement of the object for that intercanal will be.

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Infinite

zero

Increase

Decreasing

If there are no frictional effects, the mechanical energy of a system executing simple harmonic motion.

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Changes with time

Is variable

Is constant

Is not conserved

Ethanol is a replacement of

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Gasoline oil

Kerosene oil

Refinery oil

vegetable oil

In an elastic collision

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K.E. is conserved

Both K.E. and momentum are conserved

K.E. is not conserved

Only momentum is conserved

The SI unit of gravitational constant G is.

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kg m-1 s-1

kg m2 s-2

kg m3 s-2

kg m2 s-1

92.65 is round off as

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92.6

93.00

92.7

None of these

In projectile motion, the body has

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One component of velocity

Two components of velocity

Three components of velocity

No component of velocity

A particle performs SHM of amplitude 0.020 and frequency 2.5 Hz. What is its maximum speed.

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0.050 m s-1

0.125 m s-1

0.314 m s-1

0.75 m s-1

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