Physics
Grade-9
Easy
Question
Case 1: Water is heated to a temperature of 40 degree Celsius.
Case 2: It is heated further to 70 degrees Celsius.
The speed of the molecules in case 1 is __ the speed of the molecules in case 2.
- Equal to
- Greater than
- Smaller than
- Any of the above
Hint:
More the temperature of water, more will be the speed of the particles
The correct answer is: Smaller than
More the temperature of water, more will be the speed of the particles, so in first case as the temperature was lesser as compared to in second case, the speed will be less in first case
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