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Matter In Our Surroundings

Question
CBSEENSC9005692
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Give some points of differences between speed and velocity.

Solution

Difference between speed and velocity: 

Speed

Velocity

1. Speed is the distance traversed by a body per unit time in any direction.

1. Velocity is the distance traversed by a body in a given direction. 

2. It is a scalar quantity.

2. It is a vector quantity.

3. It is always positive or zero but never negative.

3. It may be positive,  negative or zero.

Some More Questions From Matter In Our Surroundings Chapter

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

What is the physical state of water at
0°C

What is the physical state of water at
100°C

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