8x State whether true or false.
(a) Heat produced by friction is always a disadvantageous.
Answers
Answered by
6
Answer:
Explanation:
No, friction does not always oppose the motion. ... If a surface is rubbed to make it smoother, then the force of the friction provided by that surface will ... The heat produced is due to the friction force. ... Hence, in this case, friction is a disadvantage. ... True. Friction causes loss of energy in the form of heat, sound, light, etc.
Answered by
4
True, because friction produces unneccesary heat leading to the wastage of energy . The force of friction acts in the opposite direction of motion , so friction slow downs the motion of moving objects .
Similar questions