3. Complete the following table:
while. This is
a. The soles of shoes wear out and become sippery after a
(an advantage a disadvantage)
(magnetic fictional) force. (2 marks)
b. While lighting a match, the heat produced due to friction
(an advantage a disadvantage). Give
a reason for your answer.
(3 marks)
IS
Answers
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Answer:
The force acting on a moving object equal and opposite to the direction of motion is called force of friction.
Question 2.
What is the cause of friction?
Answer:
The irregularities on the two surfaces in contact is the cause of friction.
Question 3.
What is the force responsible for wearing out of bicycles tyres?
Answer:
Frictional force
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