NCERT Solutions for Class 8 Science Chapter 9 Friction

NCERT solution for class 8 science friction questions. Check out friction class 8 extra question answers in one-line format.

These short question answers will help students to revise chapter concept very quickly.

Q 1. Friction is a?

Ans. Contact force.

Q 2. A toy car released with the same initial speed will travel farthest on?

Ans. Polished marble surface.

Q 3. How lubricant helps?

Ans. Reduce friction.

Q 4. Friction always?

Ans. Opposes the motion.

Q 5. Sliding friction is ___to rolling friction?

Ans. Smaller.

Q 6. Why it is difficult to walk on a oily floor?

Ans. Because force of friction is very less.

Q 7. When we apply oil on door hinges, it will be?

Ans. Decrease friction.

Q 8. Sprinkling of powder on carrom board?

Ans. Reduces friction.

Q 9. Friction produces?

Ans. Heat.