Online Test physics 09

1.When the velocity of a body is halved





2.The inability f a body to change its state of rest or uniform motion along a straight line is called its





3. If the momentum of a body increases by 20% by how much percent does its kinetic energy increases?





4.When an bullet is fired from a gun





5.Choose the scalar quantity from the following physical  quantities





6.The impulse of a force acting on a body is equal to





7.In a see-saw a man of 60 kg. seated 1 meter away from the fulcrum at the middle is balanced by a boy weighing





8.If you wan to open a door with less difficulty, you push it





9.The unit of power in s.i is





10.A body has fallen from a height. Just before touching the ground it has







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