Question

II. choose the odd one out with proper reasoning
1. Push, pull, pressure
2. Lifting a bucket, a worker pulling a cart, leaf falling from a tree, a batsman hitting a cricket ball.
3. Using ball bearings, polishing the surfaces, using lubricants, grooves in tyres.
4. Muscular force, mechanical force, gravitational force, frictional force.​

Answer 1

Answer:

1. Pressure as it is force per unit area while push and pull are examples of force
2. Leaf falling from a tree as it is due to gravitational foce while others are due to muscular force
3. Grooves in tyres as it increases friction the others decrease the friction
4. Gravitational force as it is a non contact force while others are contact force