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 KE of the molecules in case 1 is __ the KE of the molecules in case 2.
- Equal to
- Greater than
- Smaller than
- Any of the above
Hint:
Temperature increases the KE of the system
The correct answer is: Smaller than
More temperature means more KE, therefore as the temperature is more in case 2, the KE is more there
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