Question

Just howonthly Exam-2020-21
Classy - 9
rue-02 hours
M.M.-20
Subject- Science
(iv) Coal
(iv) Soil
pte - All Questions are compulsory.(10x1=10)
e 1-(a) Which of the following substance undergoes sublimation?
(Common salt
finSand
(iii) Iodine
(b)The interparticle distance is minimum in -
(1) Diamond (iiWater (ii) Nitrogen
(iv) Carbondixide
(c)Which one of the followihg may be termed as a pure substance.
(INach
(11)Softdrink
(iii) Aersul
(d) One of the following does not undergo sublimation, this one is -
(Dryice
(II)ladine (un Comphor (iv) Shlica
(e) In which state of matter, shape is not definite.
(I)Solid
(11) Liquid (III) Gas
(iv) band c both
If the clisplacement of an object is Zero, then the distance Travelled by the object -
( Is Zero
(11) Is Infinite (ii) Is negative (lv) May not be Zero
(8) The speed in uniform circular motion can determined by the formula.
( 2art
(11) 2nr/t (111) 4/2tr
(iv) 27/rt
(h-Newton's third law of motion gives the relation between
Action and reaction
(11) force and momentum
(ili) Force and Impulse
(iv) Force and acceleration
(1) The inertia of a body is due to its.
(1) mass only (ii) velocity only (11) mass and velocity both (lv) None of these
O s.l. unit of Pressure is.
(Newton/metre (ii) Newton-metre (iii) Newton (lv) Erg
2-What is the second equation of Motion ? (1)​

Answer 1

Kindly write your question in a proper way. And at a time only ask 1 question . Because of copying the question these mistakes occurs.