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What can you say about the motion of a body if:
its displacement-time graph is a straight line ?

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

What can you say about the motion of a body if:
its velocity-time graph is a straight line ?

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

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A body with an initial velocity x moves with a uniform acceleration y. Plot its velocity-time graph.

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

Given alongside is the velocity-time graph for a moving body :
Find :
(i) Velocity of the body at point C.
(ii) Acceleration acting on the body between A and B.
(iii) Acceleration acting on the body between B and C.

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

A body is moving uniformly in a straight line with a velocity of 5 m/s. Find graphically the distance covered by it in 5 seconds.

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

The speed-time graph of an ascending passenger lift is given alongside. What is the acceleration of the lift:
(1) during the first two seconds ?
(2) between second and tenth second ?
(3) during the last two seconds ?

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

Three speed-time graphs are given below :

 Which graph represents the case of:
(i) a cricket ball thrown vertically upwards and returning to the hands of the thrower ?
(ii) a trolley decelerating to a constant speed and then accelerating uniformly ?

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

Study the speed-time graph of a car given alongside and answer the following questions:

(i) What type of motion is represented by OA ?
(ii) What type of motion is represented by AB ?
(iii) What type of motion is represented by BC ?
(iv) What is the acceleration of car from O to A ?
(v)What is the acceleration of car from A to B ?
(vi) What is the retardation of car from B to C ?

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

What type of motion is represented by the following graph ?

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

What type of motion is represented by the following graph ?

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

What type of motion is represented by the following graph ?

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

What type of motion is represented by the following graph ?

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

Write the common unit of density.

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

What is the density of water in SI units ?

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

What is the value of relative density of water ?

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

The relative density of mercury is 13.6. What does this statement mean?

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

Why does ice float in water ?

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

The density of a body is 800 kg/m3. Will it sink or float when dipped in a bucket of water ? (Density of water = 1000 kg/m3).

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

Fill in the blank with suitable word :
A heavy ship floats in water because its....................density is less than that of water.

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

A mug full of water appears light as long as it is under water in the bucket than when it is outside water. Why ?

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