A mass of 10 kg is dropped from a height of 50 cm.
Just as it reaches the ground, does the velocity depend on the mass of the particle? Explain.
The velocity does not depends on the mass of the particle because the acceleration due to gravity under which the particle falls does not depend on mass.
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.
Mock Test Series
