Physics
Grade-9
Easy
Question
“Friction between the moving parts of machines causes a rise in their temperature and damage to machines.” This statement is ____.
- True
- False
Hint:
Friction between two parts of a moving object produces heat due to rise in temperature which leads to the damage to the machine.
The correct answer is 'True'.
This statement is True.
- The friction between two moving parts of machines produces high energy.
- This causes heat energy and damage to the object.
- The friction increases when both objects move.
- This is one of the disadvantages of friction.
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