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Matter In Our Surroundings

Question
CBSEENSC9005850
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The state of motion of an object is represented by the following graphs. What conclusion do you derive about the state of motion of the object in each graph? 





Solution

(a) Here, distance-time graph is a straight line. Therefore, the body is at rest.
(b) The body has uniform velocity because distance-time graph is a straight line. 
(c) Here, the velocity-time graph has a negative slope. Hence, the body has some initial velocity and is under uniform retardation.

Some More Questions From Matter In Our Surroundings Chapter

Convert the following temperature to Celsius scale.

300K

Convert the following temperature to Celsius scale.

573 K

Convert the following temperatures to Kelvin scale

25°C

What is the physical state of water at

100 °C

For any substance, why does the temperature remain constant during the change of state ?

Suggest a method to liquify atmospheric gases.

Convert the following temperatures to Kelvin scale.

35°C

Give reason for the following observations.

Naphthalene balls disappear with time without leaving any solid.

Give reason for the following observations.

We can get the smell of perfume sitting several metres away.

What is the physical state of water at

a) 25°C
b)00C
c)1000C

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