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TEJAS ACADEMY OF SCIENCE, , Physics, Time : 1.00 hr xi Marks : 20, , , , , , Projectile Motion(11th), 1) For a body moving along straight line with uniform velocity :, , A) speed Is constant and motion Is along straight line, B) speed is not constant but motion is along straight line, C) speed Is constant, motion Is along circular path, , D) speed is not constant, motion is along circular path, 2) Fora particle revolving in a circle with uniform speed :, , A) velocity is constant B) magnitude of velocity is constan, , C) magnitude of velocity changes D) speed changes, 3) A body falling freely under gravity moves with uniform :, , A) speed B) velocity C) momentum D) acceleration, 4) Wt particle ls moving with uniform velocity Its acceleration Is :, , A) infinite B) finite C) negative D) zero, , 5) Relative velocity “v" of two bodies when they are moving in the same direction with velocity V, and V2, is:, A) IV] =1¥4] = [Vo B) |v =1V1/—|V2 C) V| =1¥4 +!Vel D) V=0, , 6) Relative velocity V of two bodies when they are moving in opposite direction with velocity V, and V> is, , A) IVI = [Vil = [V2 B) |Vi = 1V1\— [Val C) Vi = [Vil + Vel D) v=0, 7) Two bodies of masses 100 kg and 125 kg are dropped from same height then :, , A) body of mass 100 kg reach earlier, B) body of mass 125 kg reach earlier, C) both the bodies reach the ground simultaneously, , D) body of large size reach earlier, , 8) Two bodies of different masses m., and m,, are dropped from two difference heights i.e. h; and ho., The ratio of time taken by both bodies through these distances Is :
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TEJAS ACADEMY OF SCIENCE 2, , , , fs Ma, A) hy shy B) Vy: Vie c) mR D) nh? :h3, 9) Acar travels 3 km to east and 4 km to north then distance travelled by the car and displacement of the, car are :, A) 7km, 5km B) 7km, 1 km C) 7 km, 7 km D) Skm, 7km, 10) A bail is released from the top of height h metre. It takes t second to reach the ground. The ball at : the, time 58 is at:, h h, A) a from the ground B) 2 from the ground, Cc) * from the ground D) depends on mass and volume of the ball, , 11) The velocity-time graph for a body projected vertically upward Is :, , A) ellipse B) parabola C) hyperbola D) straight line, 12) A cyclist travels 100 m east and then 25 m west then distance travelled by cyclist and his, , displacement is :, , A) 125 m, 125m B) 125 m, 100 m C) 125 m, 75m D) 100 m, 75m, , 13) A room has dimensions of 8m = 6m. An ant starts moving from one corner of the room, to the, diagonally opposite corner of the room. Then displacement of ant is =, , Aj14m B) 10m C) 28m D) 20m, , 14) A body covers half revolution along a circular path of radius 7 m then distance covered by the body, and displacement of body are :, , A)7m,O0m B) 14m,0m C)22m,14m D) 14m, 14m, , 15) A body covers one and half revolution around a circular path of radius 7 m then its displacement and, distance covered are :, A) 14m, 22m B) 14m,44m C) 14m, 66m D)Om,66m, , 16) When a body completes one revolution in a circular path of radius "r" then its displacement and, distance covered are :, , A)O,2nr B)0,0 C)2nr,0 D) xr xr, 17) A body covers one fourth of revolution around a circular path of radius 5 m then its displacement is :, , A)Sm B) 7.07m c)10m D) 25m, , 18) A body moves along arc AB of a radius 10 m which makes angle of 60° with the centre, then its, displacement will be :, , A) 10V2 B) 10m c)7m D)5m, , , , Rahul Chavan Sir 9130013007
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TEJAS ACADEMY OF SCIENCE, , , , 19) A body completes 1003 revolution in a circular path of radius “r" then its displacement and distance, covered are :, , A) V2r, 201.52 B) 2r. 1007r C) 2r, 200nr D) V2r, 100.752, , 20) An aeroplane moves 400 m towards north turns 300 m towards west and then 1200 m vertically, upward. Then its displacement from initial position is :, , A) 1900 m B) 1600 m C) 1500 m D) 1300 m, , , , Rahul Chavan Sir 9130013007
