Question

While sieving grains, small pieces fall down. Which force pulls them down?​

Answer 1

Answer:

gravitational force

Explanation:

we sieve the grains to separate chaff from grains,while seiving chaff and small grains fall down due to the gravitational force

Answer 2

Question: While sieving grains, small pieces fall down. Which force pulls them down?

Answer: Gravity or Gravitational force

Gravity is the force exerted by earth on all the objects that pulls everything towards itself. The falling of pieces towards the ground occurs due to the force of gravity applied by the earth on the grains. Gravity was discovered by Sir Issac Newton in the year 1687.

Gravity is a type of non contact force.

Force is the push or pull applied on an object. There are two types of force:

☆ Contact force: In contact forces, the interaction between the two objects is necessary. E.g. muscular force and friction.

☆ Non contact force: In non contact forces, there is no interaction between the two objects. Instead there is indirect interaction. E.g. gravity, electrostatic force, magnetic force.