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Welcome to the Science Quiz 58
This is a timed quiz. You will be given 15 seconds per question. Are you ready? 15
A massive ball moving with speed v collides with a tiny ball having a mass very much smaller than the mass of the first ball. If the collision is elastic, then immediately after the impact, the second ball will move with a speed approximately equal to:
Correct!
Wrong!
If a ball is thrown upwards from the surface of earth:
Correct!
Wrong!
A body is hanging from a rigid support by an inextensible string of length ‘l’ . It is struck inelastically by an identical body of mass m with horizontal velocity v = √(2gL) , the tension in the string increases just after the striking by ?
Correct!
Wrong!
A bomb travelling in a parabolic path under the effect of gravity, explodes in mid air. The centre of mass of fragments will:
Correct!
Wrong!
The centre of mass of a body:
Correct!
Wrong!
A bullet in motion hits and gets embedded in a solid block resting on a frictionless table. What is conserved?
Correct!
Wrong!
If the KE of a body becomes four times of its initial value, then the new momentum will be more than its initial momentum by?
Correct!
Wrong!
Fast neutrons can easily be slow down by
Correct!
Wrong!
Science Quiz 58
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