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Name the Following :(A) Smallest Cell Organelle

[5] The Fundamental Unit of Life
Chapter: [5] The Fundamental Unit of Life
Concept: undefined >> undefined

A car of mass 1000 kg is moving with a velocity of 10 m s−1. If the velocity-time graph for this car is a horizontal line parallel to the time axis, then the velocity of car at the end of 25 s will be :

[7] Motion
Chapter: [7] Motion
Concept: undefined >> undefined

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The inertia of an object tends to cause an object :

[8] Force and Laws of Motion
Chapter: [8] Force and Laws of Motion
Concept: undefined >> undefined

A water tanker filled up to `2/3` of its tank with water is running at a uniform speed. When the brakes are suddenly applied, the water in its tank would 

[8] Force and Laws of Motion
Chapter: [8] Force and Laws of Motion
Concept: undefined >> undefined

The inertia of a moving object depends on :

[8] Force and Laws of Motion
Chapter: [8] Force and Laws of Motion
Concept: undefined >> undefined

The physical quantity which makes it easier to accelerate a small car than a large car is measured in the unit of :

[8] Force and Laws of Motion
Chapter: [8] Force and Laws of Motion
Concept: undefined >> undefined

The unit of measuring momentum of a moving body is :

[8] Force and Laws of Motion
Chapter: [8] Force and Laws of Motion
Concept: undefined >> undefined

A Honda City car, a Maruti Alto car, A Tata Nano car and a Mahindra Scorpio car, all are running at the same speed of 50 m/s under identical conditions. If all these cars are hit from behind with the same force and they continue to move forward, the maximum acceleration will be produced in :

[8] Force and Laws of Motion
Chapter: [8] Force and Laws of Motion
Concept: undefined >> undefined

A rectangle wooden block has length, breadth and height of 50 cm, 25 cm and 10 cm, respectively. This wooden block is kept on ground in three different ways, turn by turn. Which of the following is the correct statement about the pressure exerted by this block on the ground?

[9] Gravitation
Chapter: [9] Gravitation
Concept: undefined >> undefined

Consider the following information in respect of four objects A, B, C and D :

Object Density(kg/m3) Volume(m3) Mass(kg)
A   2 4000
B 8000 4  
C 2000   1000
D   4 2000

Which object would float on water ?

[9] Gravitation
Chapter: [9] Gravitation
Concept: undefined >> undefined

Where do the ribosomes get synthesized?

[5] The Fundamental Unit of Life
Chapter: [5] The Fundamental Unit of Life
Concept: undefined >> undefined

Write names of cell organelles.

[5] The Fundamental Unit of Life
Chapter: [5] The Fundamental Unit of Life
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What are main functional regions of the cell?

[5] The Fundamental Unit of Life
Chapter: [5] The Fundamental Unit of Life
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Draw a well labelled diagram of animal cell and mention one function of the main cell organelles.

[5] The Fundamental Unit of Life
Chapter: [5] The Fundamental Unit of Life
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Write short note on the following :

(a) Golgi apparatus

(b) Mitochondria

[5] The Fundamental Unit of Life
Chapter: [5] The Fundamental Unit of Life
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What are centrioles? Write about their functions.

[5] The Fundamental Unit of Life
Chapter: [5] The Fundamental Unit of Life
Concept: undefined >> undefined

Name the following

(a) The cell organelle which synthesizes protein.

(b) The type of plastid which stores food.

[5] The Fundamental Unit of Life
Chapter: [5] The Fundamental Unit of Life
Concept: undefined >> undefined

Explain why, the flash of lightning reaches us first and the sound of thunder is heard a little later.

[11] Sound
Chapter: [11] Sound
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Which of the following statement best describes frequency?

[11] Sound
Chapter: [11] Sound
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Which property of sound leads of the formation of echoes ?

[11] Sound
Chapter: [11] Sound
Concept: undefined >> undefined
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