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Matter In Our Surroundings
Show that rest and motion are relative terms.
Rest and motion are relative terms. this can be illustrated below using the following explanation.
Let's consider for example, a passenger sitting in a moving train. The passenger is at rest relative to other passenger of his compartment. But, the passenger is in motion relative to the outside trees, lamp posts, railway stations, etc.
So, we can see that rest and motion are in respect to relativity.
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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
Give two reasons to justify
Water at room temperature is a liquid.
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