E Doris James, Vandana Tirath, Anton Siromani and, Kiran Banerji Solutions for Exercise 3: Exercises
Author:E Doris James, Vandana Tirath, Anton Siromani & Kiran Banerji
E Doris James Science Solutions for Exercise - E Doris James, Vandana Tirath, Anton Siromani and, Kiran Banerji Solutions for Exercise 3: Exercises
Attempt the free practice questions from Exercise 3: Exercises with hints and solutions to strengthen your understanding. New Science Ahead 8 solutions are prepared by Experienced Embibe Experts.
Questions from E Doris James, Vandana Tirath, Anton Siromani and, Kiran Banerji Solutions for Exercise 3: Exercises with Hints & Solutions
EASY
8th CBSE
IMPORTANT
A shape that is slightly rounded in front and narrower at the back is called a _____ shape. (circular, streamlined, aerodynamic)
EASY
8th CBSE
IMPORTANT
Friction is a contact force.
EASY
8th CBSE
IMPORTANT
Friction is greater when there are fewer irregularities on a surface.
MEDIUM
8th CBSE
IMPORTANT
Friction is greater when an object is stationary on a surface than when it is moving over it.
EASY
8th CBSE
IMPORTANT
Rolling friction is less than static friction.
EASY
8th CBSE
IMPORTANT
Energy is wasted in overcoming friction.
EASY
8th CBSE
IMPORTANT
It is desirable to increase friction in the brakes of vehicles.
EASY
8th CBSE
IMPORTANT
Streamlining a shape reduces drag due to air or water.
