NCERT Solutions for Chapter: Friction, Exercise 4: LONG ANSWER QUESTIONS
NCERT Science Solutions for Exercise - NCERT Solutions for Chapter: Friction, Exercise 4: LONG ANSWER QUESTIONS
Attempt the practice questions on Chapter 12: Friction, Exercise 4: LONG ANSWER QUESTIONS with hints and solutions to strengthen your understanding. NCERT Exemplar Science - Class 8 solutions are prepared by Experienced Embibe Experts.
Questions from NCERT Solutions for Chapter: Friction, Exercise 4: LONG ANSWER QUESTIONS with Hints & Solutions
When the cutting edge of a knife is put against a fast rotating stone to sharpen it, sparks are seen to fly. Explain the reason.

We have two identical metal sheets. One of them is rubbed with sandpaper and the other with ordinary paper. The one rubbed with sandpaper shines more than the other. Give reason.

While travelling on a rickshaw, you might have experienced that if the seat cover is very smooth, you tend to slip when brakes are applied suddenly. Explain.

Two friends are trying to push a heavy load as shown in Figure. Suggest a way which will make this task easier for them.
