Question
A total of 4900 joule was expended in lifting a 50 kg mass. The mass was raised to a height of
10 m
98 m
960 m
245,000 m
Solution
A.
10 m
A total of 4900 joule was expended in lifting a 50 kg mass. The mass was raised to a height of
10 m
98 m
960 m
245,000 m
A.
10 m
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.
Give two reasons to justify
An iron almirah is a solid at room temperature.
Why is ice at 273K more effective in cooling than water at the same temperature ?
What produces more severe burns, boiling water or steam ?
8. Name A, B, C, D, E and F in the following diagram showing state change :
Both boiling and evaporation convert a liquid into vapour. What is the difference between the two process
Define Evaporation
Mock Test Series
