Question # 1

A material of thermometer should has:

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Visible

High freezing point

Low melting point

All of these

Independent quantities are taken on

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- x - axis

x -axis

-y-axis

y-axis

The measure of an object tendency to rotate about same axis is :

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Force

Moment arm

Torque

None of these

Conduction on heat occur at ________ rate in materials

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Different

Same

Both A and B

None

Which is not an example of torque?

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Opening a nut

Door opening

Picking up a toy

All of them

The sun's surface temperature is :

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3,000 K

3,030 k

6,000 K

600 K

Which of the substances is the lightest one?

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Copper

Mercury

Aluminium

Lead

_____________ is centre from which its mass is equally distributed:

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Cebtre of mass

Centre of gravity

All of above

None

The slope of distance time graph shows.

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Speed

Displacement

Acceleration

Distance

S.I unit of young's modulus is:

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Nm

Nm^-1

Nm^-2

Nm^-3

The work done in lifting a brick of mass 2 kg through a height of 5 m above the ground will be:

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2.5 J

12.5 J

50 J

100 J

Barometer was first set up by:

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Robert

Torricelli

Al Razi

Nil

The kinetic energy of the body of mass 1000 kg moving a speed of 20 ms^-1 will be:

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2 x 10² J

2 x 10³J

2 x 10⁵J

2 x 10⁸J

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