I.COMPLETE THE FOLLOWING ANALOGY:
1. Pull: ________: : Taking out a bucket from a well:___________
2. Non-Contact: _________: : Electrostatic force:__________
3. ___________: change in speed: : squeezing a lemon________
4.______________: frictional force: : lifting a school bag:______
Answers
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Different physical analogies
Explanation:
The following analogy maybe provided for the given question:
1. Pull: Push : : Taking out a bucket from well : Moving a trolley
The above 2 are examples of pull and push respectively.
2. Non-contact : Contact : : Electrostatic force : Frictional force
While electrostatic force does not involve any physical contact, frictional force like rubbing of 2 surfaces involves contact.
3. No change in speed : change in speed : : squeezing a lemon : speeding of a car
While squeezing a lemon, object mostly remains stationary and there is no change in speed , whereas in speedinf of a vehicle , speed is constantly increasing.
4. Muscular force : Frictional force : : lifting a school bag : Air resistance
Lifting a school involves use of muscle power whereas air resistance is an example of frictional force.