1st PUC physics Series-4 December 3, 2020December 23, 2020wefru PUC Science 1st Year Physics Series-4 quiz 0 Created on December 02, 2020 By wefru 1st PUC Physics Series 4 TEST YOUR KNOWLEDGE OF SCIENCE 1 / 10 Q.31 The coefficient of restitution e for a perfectly inelastic collision is 0 12 22 12 2 / 10 Q.32 When two bodies stick together after the collision, the collision is said to be Totally inelastic collision Partially elastic collision Totally elastic collision None of the above 3 / 10 Q.33 A completely inelastic collision is one in which the two colliding particles Remain together after the collision Are separated after collision Split into small fragments flying in all directions None of the above 4 / 10 Q.34 A bullet hits and gets embedded in a solid block resting on a horizontal frictionless table. What is conserved? Momentum alone Neither momentum nor kinetic energy Momentum and kinetic energy Kinetic energy alone 5 / 10 Q.35 A body of mass m moving with a constant velocity v hits another body of the same mass moving with the same velocity v but in the opposite direction and sticks to it. The velocity of the compound body after the collision is 2v V v/2 Zero 6 / 10 Q.36 A 50 g bullet moving with velocity 10 m/s strikes a block of mass 950 g at rest and gets embedded in it. The loss in kinetic energy will be 95% 100% 5% 50% 7 / 10 Q.37 A ball is dropped from a height 10m. The ball is embedded in sand 1m and stops, then Only momentum remains conserved Only kinetic energy remains conserved Both momentum and K.E are conserved Neither K.E nor momentum is conserved 8 / 10 Q.38 Which of the following is not perfectly inelastic collision? An electron captured by a proton A man jumping onto a moving cart Striking of two glass balls A bullet striking a bag of sand 9 / 10 Q.39 A particle of mass m moving with velocity v strikes a stationary particle of mass 2m and stricks to it. The speed of the system will be v/3 v/4 v/5 v/6 10 / 10 Q.40 If a skater of weight 3 Kg has initial speed 32 m/s and the second one of weight 4 kg has 5m/s. After the collision, they have speed (couple) 5 m/s. Then the loss in K.E is 48 J 96 J Zero None of these Your score is The average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz