Force And Pressure
Q.no-E Answer the Following questions
1. A push or pull of an object it results from it is interact with another object.
No, it is necessary for the two bodies to be In direct contact for a force bexist between two them.
EX. Force of attraction between two magnets.
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2. (i) Change In shape and size of.
object. Ex.-Dough
(ii) Change in direction of object.
Ex.- Hitting a ball while bating.
(iii) Change in speed of an object.
Ex.- While applying brock of car.
3.(i) Snow- shoes are broad than.
ordinary shoes. Hence, Pressure
is reduce on snow which makes
walking easier.
(ii) To increase surface area so that
pressure on their head gets
reduced.
(iii) Because sharp knife have less
surface area which increase
pressure. Hence, vegetables are.
cuts more effectively.
(iv) wide straps increases that
surface area. Hence, pressure on
shoulder is reduced.
(v) Needle have less surface area
than finger. Hence, Applies more.
pressure of inflacted balloon.
(vi) Because atmosphere pressure
decreases with height.
(vii) As atmospheric pressure
decreases with height, to maintain.
the pressure combines has to be.
pressurised.
4.
Ans.
Rod B. It has larger surface
area. hence, exert pressure on
sand.
5.
Ans. Filled with water -👇
6.
Ans.
Observation :-
Water coming out of both the hold cover equal distance form the hold.
7.
Ans. Atmospheric pressure decrease
with height.
Yes atmospheric pressure naries
With temprature.
High temperature- Low pressure
Low temperature- High pressure
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